JP5544456B2 - 貴金属ナノ構造体及び電気化学リアクター - Google Patents
貴金属ナノ構造体及び電気化学リアクター Download PDFInfo
- Publication number
- JP5544456B2 JP5544456B2 JP2008068531A JP2008068531A JP5544456B2 JP 5544456 B2 JP5544456 B2 JP 5544456B2 JP 2008068531 A JP2008068531 A JP 2008068531A JP 2008068531 A JP2008068531 A JP 2008068531A JP 5544456 B2 JP5544456 B2 JP 5544456B2
- Authority
- JP
- Japan
- Prior art keywords
- noble metal
- electrode
- reaction
- molten salt
- electrochemical
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 229910000510 noble metal Inorganic materials 0.000 title claims description 100
- 239000002086 nanomaterial Substances 0.000 title claims description 59
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 claims description 105
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 102
- 239000000463 material Substances 0.000 claims description 58
- 238000006243 chemical reaction Methods 0.000 claims description 57
- 229910052697 platinum Inorganic materials 0.000 claims description 43
- 150000003839 salts Chemical class 0.000 claims description 42
- 239000001301 oxygen Substances 0.000 claims description 37
- 229910052760 oxygen Inorganic materials 0.000 claims description 37
- 238000000746 purification Methods 0.000 claims description 28
- 238000000034 method Methods 0.000 claims description 24
- 239000007789 gas Substances 0.000 claims description 21
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 20
- 230000005684 electric field Effects 0.000 claims description 18
- 238000004519 manufacturing process Methods 0.000 claims description 16
- 239000010416 ion conductor Substances 0.000 claims description 15
- 238000003487 electrochemical reaction Methods 0.000 claims description 14
- 239000010931 gold Substances 0.000 claims description 13
- 239000010970 precious metal Substances 0.000 claims description 13
- 239000002245 particle Substances 0.000 claims description 12
- 239000010953 base metal Substances 0.000 claims description 11
- 239000002244 precipitate Substances 0.000 claims description 11
- 239000003054 catalyst Substances 0.000 claims description 10
- 239000007784 solid electrolyte Substances 0.000 claims description 10
- 239000011164 primary particle Substances 0.000 claims description 7
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims description 6
- 238000002485 combustion reaction Methods 0.000 claims description 6
- 238000004090 dissolution Methods 0.000 claims description 6
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 6
- 229910052737 gold Inorganic materials 0.000 claims description 6
- 230000001965 increasing effect Effects 0.000 claims description 6
- 230000003746 surface roughness Effects 0.000 claims description 6
- 229910002651 NO3 Inorganic materials 0.000 claims description 5
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 claims description 5
- 238000001226 reprecipitation Methods 0.000 claims description 4
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 3
- 229910052792 caesium Inorganic materials 0.000 claims description 3
- 229910052791 calcium Inorganic materials 0.000 claims description 3
- 238000000354 decomposition reaction Methods 0.000 claims description 3
- 239000007772 electrode material Substances 0.000 claims description 3
- 150000002823 nitrates Chemical class 0.000 claims description 3
- 229910052763 palladium Inorganic materials 0.000 claims description 3
- 229910052700 potassium Inorganic materials 0.000 claims description 3
- 229910052709 silver Inorganic materials 0.000 claims description 3
- 239000004332 silver Substances 0.000 claims description 3
- 229910052708 sodium Inorganic materials 0.000 claims description 2
- 239000000758 substrate Substances 0.000 description 19
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 18
- CETPSERCERDGAM-UHFFFAOYSA-N ceric oxide Chemical compound O=[Ce]=O CETPSERCERDGAM-UHFFFAOYSA-N 0.000 description 14
- 229910000422 cerium(IV) oxide Inorganic materials 0.000 description 14
- -1 Oxygen ion Chemical class 0.000 description 12
- 229910052751 metal Inorganic materials 0.000 description 10
- 239000002184 metal Substances 0.000 description 10
- 235000010333 potassium nitrate Nutrition 0.000 description 9
- 239000004323 potassium nitrate Substances 0.000 description 9
- 230000008859 change Effects 0.000 description 8
- CMIHHWBVHJVIGI-UHFFFAOYSA-N gadolinium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[Gd+3].[Gd+3] CMIHHWBVHJVIGI-UHFFFAOYSA-N 0.000 description 8
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 8
- 239000007864 aqueous solution Substances 0.000 description 7
- 229920006395 saturated elastomer Polymers 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 238000007650 screen-printing Methods 0.000 description 6
- 239000000446 fuel Substances 0.000 description 5
- 238000002156 mixing Methods 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 239000010453 quartz Substances 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 5
- 239000002105 nanoparticle Substances 0.000 description 4
- 239000012071 phase Substances 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 239000000523 sample Substances 0.000 description 4
- 230000002194 synthesizing effect Effects 0.000 description 4
- 239000003463 adsorbent Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000004817 gas chromatography Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000001307 helium Substances 0.000 description 3
- 229910052734 helium Inorganic materials 0.000 description 3
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 3
- 239000002923 metal particle Substances 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 238000001556 precipitation Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000002202 Polyethylene glycol Substances 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 239000005667 attractant Substances 0.000 description 2
- IWOUKMZUPDVPGQ-UHFFFAOYSA-N barium nitrate Chemical compound [Ba+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O IWOUKMZUPDVPGQ-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- ZCCIPPOKBCJFDN-UHFFFAOYSA-N calcium nitrate Chemical compound [Ca+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ZCCIPPOKBCJFDN-UHFFFAOYSA-N 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 230000031902 chemoattractant activity Effects 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000002082 metal nanoparticle Substances 0.000 description 2
- KBJMLQFLOWQJNF-UHFFFAOYSA-N nickel(ii) nitrate Chemical compound [Ni+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O KBJMLQFLOWQJNF-UHFFFAOYSA-N 0.000 description 2
- 229920001223 polyethylene glycol Polymers 0.000 description 2
- 238000007639 printing Methods 0.000 description 2
- SQGYOTSLMSWVJD-UHFFFAOYSA-N silver(1+) nitrate Chemical compound [Ag+].[O-]N(=O)=O SQGYOTSLMSWVJD-UHFFFAOYSA-N 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000012798 spherical particle Substances 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- PAWQVTBBRAZDMG-UHFFFAOYSA-N 2-(3-bromo-2-fluorophenyl)acetic acid Chemical compound OC(=O)CC1=CC=CC(Br)=C1F PAWQVTBBRAZDMG-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000003242 anti bacterial agent Substances 0.000 description 1
- 229920001400 block copolymer Polymers 0.000 description 1
- UFMZWBIQTDUYBN-UHFFFAOYSA-N cobalt dinitrate Chemical compound [Co+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O UFMZWBIQTDUYBN-UHFFFAOYSA-N 0.000 description 1
- 229910001981 cobalt nitrate Inorganic materials 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000000921 elemental analysis Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000005468 ion implantation Methods 0.000 description 1
- RLJMLMKIBZAXJO-UHFFFAOYSA-N lead nitrate Chemical compound [O-][N+](=O)O[Pb]O[N+]([O-])=O RLJMLMKIBZAXJO-UHFFFAOYSA-N 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000013335 mesoporous material Substances 0.000 description 1
- 238000001000 micrograph Methods 0.000 description 1
- 239000012229 microporous material Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- CLSUSRZJUQMOHH-UHFFFAOYSA-L platinum dichloride Chemical compound Cl[Pt]Cl CLSUSRZJUQMOHH-UHFFFAOYSA-L 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- VKJKEPKFPUWCAS-UHFFFAOYSA-M potassium chlorate Chemical compound [K+].[O-]Cl(=O)=O VKJKEPKFPUWCAS-UHFFFAOYSA-M 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229910001961 silver nitrate Inorganic materials 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 235000010344 sodium nitrate Nutrition 0.000 description 1
- 239000004317 sodium nitrate Substances 0.000 description 1
- PFUVRDFDKPNGAV-UHFFFAOYSA-N sodium peroxide Chemical compound [Na+].[Na+].[O-][O-] PFUVRDFDKPNGAV-UHFFFAOYSA-N 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000004611 spectroscopical analysis Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B11/00—Electrodes; Manufacture thereof not otherwise provided for
- C25B11/02—Electrodes; Manufacture thereof not otherwise provided for characterised by shape or form
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/32—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by electrical effects other than those provided for in group B01D61/00
- B01D53/326—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by electrical effects other than those provided for in group B01D61/00 in electrochemical cells
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
- B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
- B01D53/9404—Removing only nitrogen compounds
- B01D53/9409—Nitrogen oxides
- B01D53/9413—Processes characterised by a specific catalyst
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
- B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
- B01D53/9404—Removing only nitrogen compounds
- B01D53/9409—Nitrogen oxides
- B01D53/9431—Processes characterised by a specific device
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
- B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
- B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
- B01J23/42—Platinum
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
- B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
- B01J23/44—Palladium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
- B01J23/48—Silver or gold
- B01J23/50—Silver
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
- B01J23/48—Silver or gold
- B01J23/52—Gold
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/89—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with noble metals
- B01J23/892—Nickel and noble metals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/89—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with noble metals
- B01J23/8933—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with noble metals also combined with metals, or metal oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/894—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with noble metals also combined with metals, or metal oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with rare earths or actinides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/20—Catalysts, in general, characterised by their form or physical properties characterised by their non-solid state
- B01J35/23—Catalysts, in general, characterised by their form or physical properties characterised by their non-solid state in a colloidal state
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/40—Catalysts, in general, characterised by their form or physical properties characterised by dimensions, e.g. grain size
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/50—Catalysts, in general, characterised by their form or physical properties characterised by their shape or configuration
- B01J35/58—Fabrics or filaments
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/34—Irradiation by, or application of, electric, magnetic or wave energy, e.g. ultrasonic waves ; Ionic sputtering; Flame or plasma spraying; Particle radiation
- B01J37/348—Electrochemical processes, e.g. electrochemical deposition or anodisation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/05—Metallic powder characterised by the size or surface area of the particles
- B22F1/054—Nanosized particles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/05—Metallic powder characterised by the size or surface area of the particles
- B22F1/054—Nanosized particles
- B22F1/0547—Nanofibres or nanotubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/05—Metallic powder characterised by the size or surface area of the particles
- B22F1/054—Nanosized particles
- B22F1/056—Submicron particles having a size above 100 nm up to 300 nm
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/07—Metallic powder characterised by particles having a nanoscale microstructure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
- B22F7/02—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite layers
- B22F7/04—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite layers with one or more layers not made from powder, e.g. made from solid metal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/14—Making metallic powder or suspensions thereof using physical processes using electric discharge
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D1/00—Electroforming
- C25D1/006—Nanostructures, e.g. using aluminium anodic oxidation templates [AAO]
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D17/00—Constructional parts, or assemblies thereof, of cells for electrolytic coating
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D3/00—Electroplating: Baths therefor
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D3/00—Electroplating: Baths therefor
- C25D3/66—Electroplating: Baths therefor from melts
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D3/00—Electroplating: Baths therefor
- C25D3/66—Electroplating: Baths therefor from melts
- C25D3/665—Electroplating: Baths therefor from melts from ionic liquids
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/18—Electroplating using modulated, pulsed or reversing current
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D7/00—Electroplating characterised by the article coated
- C25D7/006—Nanoparticles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/10—Noble metals or compounds thereof
- B01D2255/102—Platinum group metals
- B01D2255/1021—Platinum
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/10—Noble metals or compounds thereof
- B01D2255/102—Platinum group metals
- B01D2255/1023—Palladium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/10—Noble metals or compounds thereof
- B01D2255/104—Silver
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/10—Noble metals or compounds thereof
- B01D2255/106—Gold
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/90—Physical characteristics of catalysts
- B01D2255/91—NOx-storage component incorporated in the catalyst
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/90—Physical characteristics of catalysts
- B01D2255/92—Dimensions
- B01D2255/9202—Linear dimensions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/40—Nitrogen compounds
- B01D2257/404—Nitrogen oxides other than dinitrogen oxide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C2202/00—Physical properties
- C22C2202/02—Magnetic
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2330/00—Structure of catalyst support or particle filter
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2330/00—Structure of catalyst support or particle filter
- F01N2330/12—Metallic wire mesh fabric or knitting
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Nanotechnology (AREA)
- Electrochemistry (AREA)
- Metallurgy (AREA)
- Inorganic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Composite Materials (AREA)
- Environmental & Geological Engineering (AREA)
- Biomedical Technology (AREA)
- Combustion & Propulsion (AREA)
- General Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Plasma & Fusion (AREA)
- Toxicology (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Inert Electrodes (AREA)
- Catalysts (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Non-Insulated Conductors (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Fuel Cell (AREA)
- Powder Metallurgy (AREA)
- Electroplating Methods And Accessories (AREA)
Description
(1)溶融塩を用いた電気化学反応によって、鋳型を使用することなく、下記の構造を有する貴金属ナノ構造体を製造する方法であって、
(a)予め配置した母材となる貴金属からなる電極、対極となる電極及び酸素イオン伝導体を有する固体電解質層で構成される反応素子へ、前記貴金属からなる電極の近傍に溶融した溶融塩が存在する状態において、通電を行うことで、該通電に伴う母材貴金属の溶解再析出で形成した析出物によって、該母材貴金属の表面又はその全体を前記析出物から構成される構造を付した構造体とすること、
(b)前記貴金属として、白金、金、パラジウム、又は銀を使用すること、
(c)前記溶融塩として、硝酸塩を用いること、
(d)上記(a)〜(c)によって、1次粒子より構成されるナノメートルサイズの構造体であって、その形状が、直径1から15nmの大きさの粒子形状を有し、その構造が、1)5から200nmメートルの大きさの線径を有する細線形状の構造、2)もしくは5から200nmの表面粗さを有する凹凸構造又は突起状構造、3)もしくは5から200nmの大きさの径を有する球状の構造、からなる貴金属ナノ構造体を作製すること、を特徴とする貴金属ナノ構造体の製造方法。
(2)2つ、もしくは、それ以上の複数の電極を有し、そのうちの少なくとも一つが、溶融塩と接した状態にある母材となる貴金属で構成され、かつ電極間に配置した酸素イオン伝導体を介して通電可能に構成された反応素子へ、通電を行うことによって、母材貴金属の表面又はその全体を前記析出物から構成される構造を付した構造体を作製する、前記(1)に記載の貴金属ナノ構造体の製造方法。
(3)2つ、もしくは、それ以上の複数の電極を有し、そのうちの少なくとも一つが、溶融塩と接した状態にある母材となる貴金属で構成され、かつ電極間に配置した酸素イオン伝導体を介して通電可能に構成された反応素子へ、通電を行うことによって、母材貴金属の表面又はその全体、あるいは、この母材貴金属電極に近接するように配置した異種材料上、又はその両方へ、前記析出物から構成される構造を付した構造体を作製する、前記(1)又は(2)に記載の貴金属ナノ構造体の製造方法。
(4)反応のための通電条件を変化させることにより析出物の形態を制御する、前記(1)から(3)のいずれか1項に記載の貴金属ナノ構造体の製造方法。
(5)母材貴金属電極に溶融塩誘引材料を配置し、該溶融塩誘引材により反応場へ溶融塩を誘導することによって反応を促進する、前記(1)から(3)のいずれか1項に記載の貴金属ナノ構造体の製造方法。
(6)被処理物に対して電気化学反応を行うための素子であって、酸素イオン伝導体及びこれを挟んで相対する2つ、もしくは、それ以上の複数の電極で構成され、
そのうちの一つ以上の電極が、請求項1に記載の方法で作製してなる、1次粒子より構成されるナノメートルサイズの構造体であって、その形状が、直径1から15nmの大きさの粒子形状を有し、その構造が、1)5から200nmメートルの大きさの線径を有する細線形状の構造、2)もしくは5から200nmの表面粗さを有する凹凸構造又は突起状構造、3)もしくは5から200nmの大きさの径を有する球状の構造、からなる貴金属ナノ構造体を用いた電極で構成され、
該電極に接するように硝酸塩からなる溶融塩が配置され、該溶融塩及び酸素イオン伝導体と貴金ナノ構造体との界面を反応場としていることを特徴とする電気化学素子。
(7)電気化学素子の作動のための電界印加によって、貴金属ナノ構造体電極の多孔化及び反応表面積の増大を行い、被処理物質の分解性能を向上させうるようにした前記電極を1つ以上持つ、前記(6)に記載の電気化学素子。
(8)反応場を形成させるための溶融塩が、窒素酸化物吸着性材料としても機能する材料からなる、前記(6)又は(7)に記載の電気化学素子。
(9)貴金属ナノ構造体電極の内部にもしくは隣接するように窒素酸化物吸着性材料が配置されている、前記(6)又は(7)に記載の電気化学素子。
(10)前記窒素酸化物吸着性材料が、Na、K、Ba、Rb、Cs、Caから選ばれた少なくとも1種を含み、その含有率が、全窒素酸化物吸着性材料に対して、5〜50mol%である、前記(8)又は(9)に記載の電気化学素子。
(11)被処理物が内燃機関の排ガスであり、作動温度域が400℃より低温である、前記(6)から(10)のいずれか1項に記載の電気化学素子。
(12)前記(1)に記載の方法で作製した貴金属ナノ構造体から構成されることを特徴とする電極材料。
(13)前記(1)に記載の方法で作製した貴金属ナノ構造体から構成されることを特徴とする触媒材料。
(14)前記(6)から(11)のいずれか1項に記載の電気化学素子を配置した電気化学反応器から構成されることを特徴とする窒素酸化物浄化反応器。
本発明は、1次粒子より構成されるナノメートルサイズの多次元的な構造を有する微構造化貴金属ナノ構造体であって、直径1から15nmの大きさの粒子形状を有すること、上記の多次元的な構造が、5から200nmメートルの大きさの線径を有する細線形状、もしくは5から200nmの表面粗さを有する凹凸構造又は突起状構造、もしくは5から200nmの大きさの径を有する球状の構造を有すること、これらの構造が、テンプレートを必要としない自立状態で形成されていること、を特徴とするものである。
(1)自立した、多次元的な構造を有する微構造貴金属ナノ構造体を提供することができる。
(2)ナノメートルの大きさの貴金属微粒子を提供することができる。
(3)高比表面積を有する貴金属電極を提供することができる。
(4)バルク構造の貴金属を三次元的なナノ構造体へ変換することができる。
(5)電気化学セル等において、性能劣化した電極を再生することができる。
(6)高比表面積電極を形成することにより、高効率な窒素酸化物浄化が可能な電気化学リアクターを提供することができる。
(7)高比表面積化した貴金属によって、活性の高い触媒を提供することができる。
(8)触媒に活用されるNOx吸着材を高分散配置することができる。
(9)高性能な燃料電池を作製するための多次元構造電極を提供することができる。
(10)電極の線形構造化等によって、より高感度なセンサ用の電極を構成することができる。
Claims (14)
- 溶融塩を用いた電気化学反応によって、鋳型を使用することなく、下記の構造を有する貴金属ナノ構造体を製造する方法であって、
(1)予め配置した母材となる貴金属からなる電極、対極となる電極及び酸素イオン伝導体を有する固体電解質層で構成される反応素子へ、前記貴金属からなる電極の近傍に溶融した溶融塩が存在する状態において、通電を行うことで、該通電に伴う母材貴金属の溶解再析出で形成した析出物によって、該母材貴金属の表面又はその全体を前記析出物から構成される構造を付した構造体とすること、
(2)前記貴金属として、白金、金、パラジウム、又は銀を使用すること、
(3)前記溶融塩として、硝酸塩を用いること、
(4)上記(1)〜(3)によって、1次粒子より構成されるナノメートルサイズの構造体であって、その形状が、直径1から15nmの大きさの粒子形状を有し、その構造が、1)5から200nmメートルの大きさの線径を有する細線形状の構造、2)もしくは5から200nmの表面粗さを有する凹凸構造又は突起状構造、3)もしくは5から200nmの大きさの径を有する球状の構造、からなる貴金属ナノ構造体を作製すること、を特徴とする貴金属ナノ構造体の製造方法。 - 2つ、もしくは、それ以上の複数の電極を有し、そのうちの少なくとも一つが、溶融塩と接した状態にある母材となる貴金属で構成され、かつ電極間に配置した酸素イオン伝導体を介して通電可能に構成された反応素子へ、通電を行うことによって、母材貴金属の表面又はその全体を前記析出物から構成される構造を付した構造体を作製する、請求項1に記載の貴金属ナノ構造体の製造方法。
- 2つ、もしくは、それ以上の複数の電極を有し、そのうちの少なくとも一つが、溶融塩と接した状態にある母材となる貴金属で構成され、かつ電極間に配置した酸素イオン伝導体を介して通電可能に構成された反応素子へ、通電を行うことによって、母材貴金属の表面又はその全体、あるいは、この母材貴金属電極に近接するように配置した異種材料上、又はその両方へ、前記析出物から構成される構造を付した構造体を作製する、請求項1又は2に記載の貴金属ナノ構造体の製造方法。
- 反応のための通電条件を変化させることにより析出物の形態を制御する、請求項1から3のいずれか1項に記載の貴金属ナノ構造体の製造方法。
- 母材貴金属電極に溶融塩誘引材料を配置し、該溶融塩誘引材により反応場へ溶融塩を誘導することによって反応を促進する、請求項1から3のいずれか1項に記載の貴金属ナノ構造体の製造方法。
- 被処理物に対して電気化学反応を行うための素子であって、酸素イオン伝導体及びこれを挟んで相対する2つ、もしくは、それ以上の複数の電極で構成され、
そのうちの一つ以上の電極が、請求項1に記載の方法で作製してなる、1次粒子より構成されるナノメートルサイズの構造体であって、その形状が、直径1から15nmの大きさの粒子形状を有し、その構造が、1)5から200nmメートルの大きさの線径を有する細線形状の構造、2)もしくは5から200nmの表面粗さを有する凹凸構造又は突起状構造、3)もしくは5から200nmの大きさの径を有する球状の構造、からなる貴金属ナノ構造体を用いた電極で構成され、
該電極に接するように硝酸塩からなる溶融塩が配置され、該溶融塩及び酸素イオン伝導体と貴金ナノ構造体との界面を反応場としていることを特徴とする電気化学素子。 - 電気化学素子の作動のための電界印加によって、貴金属ナノ構造体電極の多孔化及び反応表面積の増大を行い、被処理物質の分解性能を向上させうるようにした前記電極を1つ以上持つ、請求項6に記載の電気化学素子。
- 反応場を形成させるための溶融塩が、窒素酸化物吸着性材料としても機能する材料からなる、請求項6又は7に記載の電気化学素子。
- 貴金属ナノ構造体電極の内部にもしくは隣接するように窒素酸化物吸着性材料が配置されている、請求項6又は7に記載の電気化学素子。
- 前記窒素酸化物吸着性材料が、Na、K、Ba、Rb、Cs、Caから選ばれた少なくとも1種を含み、その含有率が、全窒素酸化物吸着性材料に対して、5〜50mol%である、請求項8又は9に記載の電気化学素子。
- 被処理物が内燃機関の排ガスであり、作動温度域が400℃より低温である、請求項6から10のいずれか1項に記載の電気化学素子。
- 請求項1に記載の方法で作製した貴金属ナノ構造体から構成されることを特徴とする電極材料。
- 請求項1に記載の方法で作製した貴金属ナノ構造体から構成されることを特徴とする触媒材料。
- 請求項6から11のいずれか1項に記載の電気化学素子を配置した電気化学反応器から構成されることを特徴とする窒素酸化物浄化反応器。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008068531A JP5544456B2 (ja) | 2007-09-21 | 2008-03-17 | 貴金属ナノ構造体及び電気化学リアクター |
PCT/JP2008/066564 WO2009038023A1 (ja) | 2007-09-21 | 2008-09-12 | 貴金属ナノ構造体及び電気化学リアクター |
EP08832196.3A EP2208557B1 (en) | 2007-09-21 | 2008-09-12 | Noble metal nanostructure and electrochemical reactor |
DK08832196.3T DK2208557T3 (en) | 2007-09-21 | 2008-09-12 | PRECIOUS METAL NANO STRUCTURE AND electrochemical reactor |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007246277 | 2007-09-21 | ||
JP2007246277 | 2007-09-21 | ||
JP2008068531A JP5544456B2 (ja) | 2007-09-21 | 2008-03-17 | 貴金属ナノ構造体及び電気化学リアクター |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2009090448A JP2009090448A (ja) | 2009-04-30 |
JP5544456B2 true JP5544456B2 (ja) | 2014-07-09 |
Family
ID=40467839
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2008068531A Active JP5544456B2 (ja) | 2007-09-21 | 2008-03-17 | 貴金属ナノ構造体及び電気化学リアクター |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP2208557B1 (ja) |
JP (1) | JP5544456B2 (ja) |
DK (1) | DK2208557T3 (ja) |
WO (1) | WO2009038023A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP7072294B1 (ja) | 2021-02-22 | 2022-05-20 | 株式会社777G Studio | エレベータ制御システム、及びエレベータ制御プログラム |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011001603A (ja) * | 2009-06-18 | 2011-01-06 | Fuji Electric Holdings Co Ltd | 金属粒子、カーボン、燃料電池用電極、燃料電池セル、燃料電池スタック、無機酸化物、触媒、及び金属粒子の分別方法 |
CN101717972B (zh) * | 2009-11-26 | 2011-11-23 | 济南大学 | 一种纳米多孔钯的电化学制备方法 |
JP5377247B2 (ja) * | 2009-11-27 | 2013-12-25 | 京セラ株式会社 | NOx浄化用部材およびNOx浄化用装置 |
JP5681916B2 (ja) * | 2010-11-01 | 2015-03-11 | イーメックス株式会社 | 高分子電解質複合体の製造方法 |
SE1100140A1 (sv) * | 2011-03-01 | 2012-09-02 | Joachim Karthaeuser | Metoder för att producera metalliserade kolnanopartiklar |
JP5766028B2 (ja) * | 2011-04-13 | 2015-08-19 | 相部 紀夫 | 放射性セシウムの吸着方法 |
JP5522117B2 (ja) * | 2011-05-18 | 2014-06-18 | 株式会社豊田中央研究所 | 絶縁被覆アルミニウム導体、絶縁被膜およびその形成方法 |
JP6033127B2 (ja) | 2013-03-06 | 2016-11-30 | 一般財団法人ファインセラミックスセンター | 窒素酸化物分解材料及びその利用 |
CN106191945A (zh) * | 2016-07-01 | 2016-12-07 | 北京工业大学 | 一种脉冲电沉积制备二氧化钛纳米管固载铂‑镍双金属复合电极的方法 |
JP6957020B2 (ja) * | 2017-12-21 | 2021-11-02 | 石福金属興業株式会社 | 白金粉末の製造方法および白金粉末を用いたペースト |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19651492B4 (de) * | 1996-12-11 | 2006-04-06 | Eads Deutschland Gmbh | Vorrichtung zur NOx-Entfernung aus dem Abgas von Verbrennungsmotoren |
US5879827A (en) * | 1997-10-10 | 1999-03-09 | Minnesota Mining And Manufacturing Company | Catalyst for membrane electrode assembly and method of making |
JP3842177B2 (ja) * | 2002-07-03 | 2006-11-08 | 独立行政法人科学技術振興機構 | 貴金属ナノチューブ及びその製造方法 |
JP2006028606A (ja) * | 2004-07-20 | 2006-02-02 | Junichi Nishino | 網目状銀樹およびその製造方法 |
JP4487067B2 (ja) * | 2004-07-30 | 2010-06-23 | 国立大学法人 宮崎大学 | 白金ナノ粒子及びその製造方法 |
JP4728093B2 (ja) * | 2005-03-02 | 2011-07-20 | 独立行政法人科学技術振興機構 | 固/液界面に形成された吸着ミセル膜を反応場として形成される単結晶質の貴金属超薄膜ナノ粒子及びその製造方法 |
JP4749025B2 (ja) * | 2005-04-19 | 2011-08-17 | 学校法人同志社 | 溶融塩中の微粒子の回収方法 |
FR2885913B1 (fr) * | 2005-05-18 | 2007-08-10 | Centre Nat Rech Scient | Element composite comprenant un substrat conducteur et un revetement metallique nanostructure. |
JP5181413B2 (ja) * | 2005-09-13 | 2013-04-10 | 日立電線株式会社 | 電気化学装置用電極、固体電解質/電極接合体及びその製造方法 |
JP2007123043A (ja) * | 2005-10-27 | 2007-05-17 | Canon Inc | 固体高分子型燃料電池の触媒層、その製造方法および固体高分子型燃料電池 |
-
2008
- 2008-03-17 JP JP2008068531A patent/JP5544456B2/ja active Active
- 2008-09-12 EP EP08832196.3A patent/EP2208557B1/en not_active Not-in-force
- 2008-09-12 WO PCT/JP2008/066564 patent/WO2009038023A1/ja active Application Filing
- 2008-09-12 DK DK08832196.3T patent/DK2208557T3/en active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP7072294B1 (ja) | 2021-02-22 | 2022-05-20 | 株式会社777G Studio | エレベータ制御システム、及びエレベータ制御プログラム |
Also Published As
Publication number | Publication date |
---|---|
DK2208557T3 (en) | 2016-05-17 |
EP2208557A1 (en) | 2010-07-21 |
JP2009090448A (ja) | 2009-04-30 |
WO2009038023A1 (ja) | 2009-03-26 |
EP2208557A4 (en) | 2013-02-20 |
EP2208557B1 (en) | 2016-04-27 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5544456B2 (ja) | 貴金属ナノ構造体及び電気化学リアクター | |
Liu et al. | Shape-controlled fabrication and enhanced gas sensing properties of uniform sphere-like ZnFe2O4 hierarchical architectures | |
Wang et al. | The MIL-88A-derived Fe3O4-carbon hierarchical nanocomposites for electrochemical sensing | |
Cho et al. | Preparation of hollow Fe2O3 nanorods and nanospheres by nanoscale kirkendall diffusion, and their electrochemical properties for use in lithium-ion batteries | |
JP4728093B2 (ja) | 固/液界面に形成された吸着ミセル膜を反応場として形成される単結晶質の貴金属超薄膜ナノ粒子及びその製造方法 | |
Yang et al. | Morphology-controlled synthesis of hematite nanocrystals and their facet effects on gas-sensing properties | |
Wang et al. | Assembly of 2D nanosheets into 3D flower-like NiO: Synthesis and the influence of petal thickness on gas-sensing properties | |
Pei et al. | Formation of copper vanadate nanobelts and their electrochemical behaviors for the determination of ascorbic acid | |
Zhang et al. | MCo2O4 (M= Ni, Cu, Zn) nanotubes: template synthesis and application in gas sensors | |
Michel et al. | CO sensor based on thick films of 3D hierarchical CeO2 architectures | |
He et al. | Thermally and electrochemically induced electrode/electrolyte interfaces in solid oxide fuel cells: an AFM and EIS study | |
US7553513B2 (en) | Electrochemical electrode using nickel-containing nanostructured material having dendritic structure as active layer, and method for producing the same | |
GB2437459A (en) | Ceramic chemical reaction device capable of decomposing solid carbon | |
Wang et al. | Amorphous sulfur decorated gold nanowires as efficient electrocatalysts toward ambient ammonia synthesis | |
Jia et al. | Synthesis and characterization of Ag/α-Fe2O3 microspheres and their application to highly sensitive and selective detection of ethanol | |
JP2016514257A (ja) | カルコゲナイド系ナノ線を利用した熱化学ガスセンサー及びその製造方法 | |
Wang et al. | Nano-array integrated monolithic devices: toward rational materials design and multi-functional performance by scalable nanostructures assembly | |
Fu et al. | L-Lysine mediated synthesis of platinum nanocuboids and their electrocatalytic activity towards ammonia oxidation | |
KR20190097752A (ko) | 다공성 금속산화물 나노쉬트를 이용한 가스 센서용 부재 및 그 제조 방법 | |
Farhadi et al. | Facile template-free hydrothermal synthesis of Co3O4 hollow microspheres constructed by nanoparticles using [Co (NH3) 4CO3] NO3 and their photocatalytic activity | |
Dang et al. | Synthesis of amourphous and crystalline hollow manganese oxide nanotubes with highly porous walls using carbon nanotube templates and enhanced catalytic activity | |
Yousif et al. | Morphology engineering of LiFeO2 nanostructures through synthesis controlling for electrochemical hydrogen storage inquiries | |
Bian et al. | Magneto-revealing and acceleration of hidden kirkendall effect in galvanic replacement reaction | |
Delfani et al. | Novel mesoporous Co 3 O 4–Sb 2 O 3–SnO 2 active material in high-performance capacitive deionization | |
Moazami et al. | Synthesis of manganese dioxide nanosheets and charge storage evaluation |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20100210 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20130311 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20130509 |
|
A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20131002 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20131230 |
|
A911 | Transfer to examiner for re-examination before appeal (zenchi) |
Free format text: JAPANESE INTERMEDIATE CODE: A911 Effective date: 20140114 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20140220 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20140226 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 5544456 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
S533 | Written request for registration of change of name |
Free format text: JAPANESE INTERMEDIATE CODE: R313533 |
|
R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |