JP5955501B2 - 白金/パラジウムコアシェル触媒の製造方法 - Google Patents
白金/パラジウムコアシェル触媒の製造方法 Download PDFInfo
- Publication number
- JP5955501B2 JP5955501B2 JP2010271784A JP2010271784A JP5955501B2 JP 5955501 B2 JP5955501 B2 JP 5955501B2 JP 2010271784 A JP2010271784 A JP 2010271784A JP 2010271784 A JP2010271784 A JP 2010271784A JP 5955501 B2 JP5955501 B2 JP 5955501B2
- Authority
- JP
- Japan
- Prior art keywords
- platinum
- palladium
- core
- shell catalyst
- coverage
- 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.)
- Expired - Fee Related
Links
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 title claims description 240
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical group [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 title claims description 93
- 229910052697 platinum Inorganic materials 0.000 title claims description 90
- 229910052763 palladium Inorganic materials 0.000 title claims description 45
- 239000003054 catalyst Substances 0.000 title claims description 37
- 239000011258 core-shell material Substances 0.000 title claims description 36
- 238000004519 manufacturing process Methods 0.000 title claims description 16
- 150000003839 salts Chemical class 0.000 claims description 16
- 150000001768 cations Chemical class 0.000 claims description 11
- 239000000446 fuel Substances 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 10
- 238000002156 mixing Methods 0.000 claims description 3
- 239000003638 chemical reducing agent Substances 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 14
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 13
- 229910052751 metal Inorganic materials 0.000 description 11
- 239000002184 metal Substances 0.000 description 11
- 239000000243 solution Substances 0.000 description 10
- 229910052799 carbon Inorganic materials 0.000 description 9
- 238000003756 stirring Methods 0.000 description 8
- 150000001450 anions Chemical class 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 5
- 238000002329 infrared spectrum Methods 0.000 description 5
- 239000011257 shell material Substances 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 239000007864 aqueous solution Substances 0.000 description 4
- 230000005587 bubbling Effects 0.000 description 4
- 239000011261 inert gas Substances 0.000 description 4
- 238000005342 ion exchange Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 239000000725 suspension Substances 0.000 description 4
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 3
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 description 3
- 239000010941 cobalt Substances 0.000 description 3
- 229910017052 cobalt Inorganic materials 0.000 description 3
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 3
- 239000011162 core material Substances 0.000 description 3
- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical compound I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 229910052750 molybdenum Inorganic materials 0.000 description 3
- 239000011733 molybdenum Substances 0.000 description 3
- 229910052707 ruthenium Inorganic materials 0.000 description 3
- -1 Al 2 O 3 Chemical compound 0.000 description 2
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 238000004566 IR spectroscopy Methods 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- NOWPEMKUZKNSGG-UHFFFAOYSA-N azane;platinum(2+) Chemical compound N.N.N.N.[Pt+2] NOWPEMKUZKNSGG-UHFFFAOYSA-N 0.000 description 2
- WAJRCRIROYMRKA-UHFFFAOYSA-L benzonitrile;platinum(2+);dichloride Chemical compound [Cl-].[Cl-].[Pt+2].N#CC1=CC=CC=C1.N#CC1=CC=CC=C1 WAJRCRIROYMRKA-UHFFFAOYSA-L 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000002134 carbon nanofiber Substances 0.000 description 2
- 229910021393 carbon nanotube Inorganic materials 0.000 description 2
- 239000002041 carbon nanotube Substances 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 239000011651 chromium Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- WPWLTKRUFHHDLP-UHFFFAOYSA-L dichloroplatinum;triethylphosphane Chemical compound Cl[Pt]Cl.CCP(CC)CC.CCP(CC)CC WPWLTKRUFHHDLP-UHFFFAOYSA-L 0.000 description 2
- 230000009881 electrostatic interaction Effects 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052741 iridium Inorganic materials 0.000 description 2
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 229910052762 osmium Inorganic materials 0.000 description 2
- SYQBFIAQOQZEGI-UHFFFAOYSA-N osmium atom Chemical compound [Os] SYQBFIAQOQZEGI-UHFFFAOYSA-N 0.000 description 2
- MUMZUERVLWJKNR-UHFFFAOYSA-N oxoplatinum Chemical compound [Pt]=O MUMZUERVLWJKNR-UHFFFAOYSA-N 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- NWAHZABTSDUXMJ-UHFFFAOYSA-N platinum(2+);dinitrate Chemical compound [Pt+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O NWAHZABTSDUXMJ-UHFFFAOYSA-N 0.000 description 2
- XAFJSPPHVXDRIE-UHFFFAOYSA-L platinum(2+);triphenylphosphane;dichloride Chemical compound [Cl-].[Cl-].[Pt+2].C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 XAFJSPPHVXDRIE-UHFFFAOYSA-L 0.000 description 2
- 229910052702 rhenium Inorganic materials 0.000 description 2
- WUAPFZMCVAUBPE-UHFFFAOYSA-N rhenium atom Chemical compound [Re] WUAPFZMCVAUBPE-UHFFFAOYSA-N 0.000 description 2
- 229910052703 rhodium Inorganic materials 0.000 description 2
- 239000010948 rhodium Substances 0.000 description 2
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- HFLCCHAOKSABAA-PHFPKPIQSA-L (1z,5z)-cycloocta-1,5-diene;dibromoplatinum Chemical compound Br[Pt]Br.C\1C\C=C/CC\C=C/1 HFLCCHAOKSABAA-PHFPKPIQSA-L 0.000 description 1
- KLFRPGNCEJNEKU-FDGPNNRMSA-L (z)-4-oxopent-2-en-2-olate;platinum(2+) Chemical compound [Pt+2].C\C([O-])=C\C(C)=O.C\C([O-])=C\C(C)=O KLFRPGNCEJNEKU-FDGPNNRMSA-L 0.000 description 1
- QSXADHVZKXIKBP-UHFFFAOYSA-N 1,2-diiodocycloocta-1,5-diene platinum Chemical compound [Pt].IC1=C(I)CCC=CCC1 QSXADHVZKXIKBP-UHFFFAOYSA-N 0.000 description 1
- IRQFWWWWPWWTOY-UHFFFAOYSA-N 1,2-dimethylcycloocta-1,5-diene platinum Chemical compound [Pt].CC1=C(C)CCC=CCC1 IRQFWWWWPWWTOY-UHFFFAOYSA-N 0.000 description 1
- VLEXGVLAXISFTQ-UHFFFAOYSA-N 1,2-diphenylcycloocta-1,5-diene;platinum(2+) Chemical compound [Pt+2].C=1C=CC=CC=1C=1CCC=CCCC=1C1=CC=CC=C1 VLEXGVLAXISFTQ-UHFFFAOYSA-N 0.000 description 1
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 238000005033 Fourier transform infrared spectroscopy Methods 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- CKQGCFFDQIFZFA-UHFFFAOYSA-N Undecyl acetate Chemical compound CCCCCCCCCCCOC(C)=O CKQGCFFDQIFZFA-UHFFFAOYSA-N 0.000 description 1
- 239000006230 acetylene black Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000007900 aqueous suspension Substances 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- KHCPSOMSJYAQSY-UHFFFAOYSA-L azane;dichloroplatinum Chemical compound N.N.N.N.Cl[Pt]Cl KHCPSOMSJYAQSY-UHFFFAOYSA-L 0.000 description 1
- LSDWMQXWIQMHNQ-UHFFFAOYSA-L azane;hydrogen phosphate;platinum(2+) Chemical compound N.N.N.N.[Pt+2].OP([O-])([O-])=O LSDWMQXWIQMHNQ-UHFFFAOYSA-L 0.000 description 1
- FOSZYDNAURUMOT-UHFFFAOYSA-J azane;platinum(4+);tetrachloride Chemical compound N.N.N.N.[Cl-].[Cl-].[Cl-].[Cl-].[Pt+4] FOSZYDNAURUMOT-UHFFFAOYSA-J 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- FSKLOGLSYZIRMP-UHFFFAOYSA-N carbanide 2-methylcyclopenta-1,3-diene platinum(4+) Chemical compound [CH3-].[CH3-].[CH3-].[Pt+4].CC=1C=C[CH-]C=1 FSKLOGLSYZIRMP-UHFFFAOYSA-N 0.000 description 1
- ZCSQPOLLUOLHHF-UHFFFAOYSA-M carbanide;iodoplatinum Chemical compound [CH3-].[CH3-].[CH3-].[Pt]I ZCSQPOLLUOLHHF-UHFFFAOYSA-M 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- DQLATGHUWYMOKM-UHFFFAOYSA-L cisplatin Chemical compound N[Pt](N)(Cl)Cl DQLATGHUWYMOKM-UHFFFAOYSA-L 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- VVAOPCKKNIUEEU-PHFPKPIQSA-L dichloro(cycloocta-1,5-diene)platinum(ii) Chemical compound Cl[Pt]Cl.C\1C\C=C/CC\C=C/1 VVAOPCKKNIUEEU-PHFPKPIQSA-L 0.000 description 1
- MXLIXEZAMQLDMM-UHFFFAOYSA-L dichloroplatinum;ethane-1,2-diamine Chemical compound [Cl-].[Cl-].[Pt+2].NCCN.NCCN MXLIXEZAMQLDMM-UHFFFAOYSA-L 0.000 description 1
- 239000012470 diluted sample Substances 0.000 description 1
- LMABILRJNNFCPG-UHFFFAOYSA-L ethane-1,2-diamine;platinum(2+);dichloride Chemical compound [Cl-].[Cl-].[Pt+2].NCCN LMABILRJNNFCPG-UHFFFAOYSA-L 0.000 description 1
- XBLBDYCZFZESPN-UHFFFAOYSA-J ethene;platinum(2+);tetrachloride Chemical compound [Cl-].[Cl-].[Cl-].[Cl-].[Pt+2].[Pt+2].C=C.C=C XBLBDYCZFZESPN-UHFFFAOYSA-J 0.000 description 1
- DCIVLRIRJUWCIS-UHFFFAOYSA-L ethylsulfanylethane;platinum(2+);dichloride Chemical compound [Cl-].[Cl-].[Pt+2].CCSCC.CCSCC DCIVLRIRJUWCIS-UHFFFAOYSA-L 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 150000004682 monohydrates Chemical class 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- CLSUSRZJUQMOHH-UHFFFAOYSA-L platinum dichloride Chemical compound Cl[Pt]Cl CLSUSRZJUQMOHH-UHFFFAOYSA-L 0.000 description 1
- 229910003446 platinum oxide Inorganic materials 0.000 description 1
- HRGDZIGMBDGFTC-UHFFFAOYSA-N platinum(2+) Chemical compound [Pt+2] HRGDZIGMBDGFTC-UHFFFAOYSA-N 0.000 description 1
- KGRJUMGAEQQVFK-UHFFFAOYSA-L platinum(2+);dibromide Chemical compound Br[Pt]Br KGRJUMGAEQQVFK-UHFFFAOYSA-L 0.000 description 1
- ZXDJCKVQKCNWEI-UHFFFAOYSA-L platinum(2+);diiodide Chemical compound [I-].[I-].[Pt+2] ZXDJCKVQKCNWEI-UHFFFAOYSA-L 0.000 description 1
- FCJXCLMZOWAKNQ-UHFFFAOYSA-L platinum(2+);pyridine;dichloride Chemical compound [Cl-].[Cl-].[Pt+2].C1=CC=NC=C1.C1=CC=NC=C1 FCJXCLMZOWAKNQ-UHFFFAOYSA-L 0.000 description 1
- SYKXNRFLNZUGAJ-UHFFFAOYSA-N platinum;triphenylphosphane Chemical compound [Pt].C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 SYKXNRFLNZUGAJ-UHFFFAOYSA-N 0.000 description 1
- RJQWVEJVXWLMRE-UHFFFAOYSA-N platinum;tritert-butylphosphane Chemical compound [Pt].CC(C)(C)P(C(C)(C)C)C(C)(C)C.CC(C)(C)P(C(C)(C)C)C(C)(C)C RJQWVEJVXWLMRE-UHFFFAOYSA-N 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- JOKPITBUODAHEN-UHFFFAOYSA-N sulfanylideneplatinum Chemical compound [Pt]=S JOKPITBUODAHEN-UHFFFAOYSA-N 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Landscapes
- Catalysts (AREA)
- Inert Electrodes (AREA)
Description
(1)溶液中で白金錯陽イオンに解離する白金錯塩と、担体に担持されたパラジウムとを混合する工程を含む、白金で被覆されたパラジウムからなるコアシェル触媒の製造方法。
(2)白金錯陽イオンが[Pt(NH3)4]2+である、(1)に記載の製造方法。
(3)白金錯塩がPt(NH3)4Cl2である、(1)に記載の製造方法。
(4)(1)〜(3)のいずれかに記載の製造方法により得られるコアシェル触媒。
(5)白金で被覆されたパラジウムからなるコアシェル触媒であって、白金による被覆率が50%以上である前記コアシェル触媒。
(6)(4)または(5)に記載のコアシェル触媒を有する燃料電池用電極。
(7)(6)に記載の燃料電池用電極を有する燃料電池。
1.コアシェル触媒の製造方法
白金で被覆されたパラジウムからなるコアシェル触媒は、溶液中(例えば、水溶液中)で白金錯陽イオンに解離する白金錯塩と、担体に担持されたパラジウムとを混合することにより製造することができる。
前記製造方法により得られるコアシェル触媒は、従来のコアシェル触媒と比べて、パラジウム表面における白金の被覆率が高い。コアシェル触媒は、白金による被覆率が35%以上であることが好ましく、40%以上であることが特に好ましく、50%以上であることが最も好ましい。例えば、白金による被覆率が35〜100%、40〜80%、及び50〜60%であるコアシェル触媒を挙げることができる。白金による被覆率は実施例に記載の方法に従って測定することができる。
1)測定機器
フーリエ変換赤外分光光度計 Avatar 360(Nicolet社製)
加熱拡散反射セル(エス・ティ・ジャパン社製)
2)測定条件
分解能:4cm−1
積算回数:256回スキャン
波数範囲:4000〜650cm−1(検出器:MCT−A)
測定温度:30℃
3)測定方法
試料調製:試料約0.004gに対し、KBr約0.196gを混合し、希釈を行った。
イオン交換水(300g)にパラジウム担持カーボン(0.3g)を懸濁させ、N2バブリングを開始した後、撹拌しながら80℃まで昇温した。その後、イオン交換水(200g)に溶解させた硝酸テトラアンミン白金(Pt(NH3)4(NO3)2)(0.077g、0.20mmol)を懸濁液に添加し、撹拌しながら各設定温度で5時間保持した。続いて、ろ過し、60℃のイオン交換水(500ml)で3回洗浄し、80℃で15時間送風乾燥を行って生成物を得た。図4に示すように、白金に吸着したCO由来のピーク面積は0.00107であり、パラジウムに吸着したCO由来のピーク面積は0.00181であったため、白金による被覆率は37%であった。
イオン交換水(300g)にパラジウム担持カーボン(0.3g)を懸濁させ、N2バブリングを開始した後、撹拌しながら80℃まで昇温した。その後、イオン交換水(200g)に溶解させたテトラアンミン白金クロリド(Pt(NH3)4Cl2)(0.067g、0.20mmol)を懸濁液に添加し、撹拌しながら各設定温度で5時間保持した。続いて、ろ過し、60℃のイオン交換水(500ml)で3回洗浄し、80℃で15時間送風乾燥を行って生成物を得た。図5に示すように、白金に吸着したCO由来のピーク面積は0.00171であり、パラジウムに吸着したCO由来のピーク面積は0.00161であったため、白金による被覆率は51%であった。
イオン交換水(300g)にパラジウム担持カーボン(0.3g)を懸濁させ、N2バブリングを開始した後、撹拌しながら80℃まで昇温した。その後、イオン交換水(200g)に溶解させた水酸化テトラアンミン白金(Pt(NH3)4(OH)2)(0.059g、0.20mmol)を懸濁液に添加し、撹拌しながら各設定温度で5時間保持した。続いて、ろ過し、60℃のイオン交換水(500ml)で3回洗浄し、80℃で15時間送風乾燥を行って生成物を得た。図6に示すように、白金に吸着したCO由来のピーク面積は0.00041であり、パラジウムに吸着したCO由来のピーク面積は0.00058であったため、白金による被覆率は41%であった。
イオン交換水(300g)にパラジウム担持カーボン(0.3g)を懸濁させ、N2バブリングを開始した後、撹拌しながら80℃まで昇温した。その後、イオン交換水(200g)に溶解させたテトラクロロ白金酸カリウム(K2PtCl4)(0.083g、0.20mmol)を懸濁液に添加し、撹拌しながら各設定温度で5時間保持した。続いて、ろ過し、60℃のイオン交換水(500ml)で3回洗浄し、80℃で15時間送風乾燥を行って生成物を得た。図7に示すように、白金に吸着したCO由来のピーク面積は0.001であり、パラジウムに吸着したCO由来のピーク面積は0.00238であったため、白金による被覆率は30%であった。
Claims (5)
- 溶液中で白金錯陽イオンに解離する白金錯塩と、担体に担持されたパラジウムとを混合する工程を含む、白金で被覆されたパラジウムからなる、燃料電池用電極用のコアシェル触媒の製造方法であって、
還元剤を使用しない、製造方法。 - 白金錯陽イオンが[Pt(NH3)4]2+である、請求項1に記載の製造方法。
- 白金錯塩がPt(NH3)4Cl2である、請求項1に記載の製造方法。
- 請求項1〜3のいずれか1項に記載の製造方法により得られるコアシェル触媒を使用して燃料電池用電極を製造する方法。
- 請求項4に記載の方法により得られる燃料電池用電極を使用して燃料電池を製造する方法。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010271784A JP5955501B2 (ja) | 2010-12-06 | 2010-12-06 | 白金/パラジウムコアシェル触媒の製造方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010271784A JP5955501B2 (ja) | 2010-12-06 | 2010-12-06 | 白金/パラジウムコアシェル触媒の製造方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2012120949A JP2012120949A (ja) | 2012-06-28 |
JP5955501B2 true JP5955501B2 (ja) | 2016-07-20 |
Family
ID=46503001
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2010271784A Expired - Fee Related JP5955501B2 (ja) | 2010-12-06 | 2010-12-06 | 白金/パラジウムコアシェル触媒の製造方法 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP5955501B2 (ja) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5708524B2 (ja) * | 2012-02-13 | 2015-04-30 | トヨタ自動車株式会社 | 触媒微粒子の被覆率算出方法及び触媒微粒子の評価方法 |
JP5708525B2 (ja) * | 2012-02-13 | 2015-04-30 | トヨタ自動車株式会社 | 触媒微粒子の被覆率算出方法及び触媒微粒子の評価方法 |
JP5673598B2 (ja) * | 2012-05-01 | 2015-02-18 | トヨタ自動車株式会社 | コアシェル粒子の被覆率定量方法およびコアシェル粒子の製造方法 |
CN105122524B (zh) | 2013-04-18 | 2017-07-18 | 丰田自动车株式会社 | 燃料电池用催化剂和其制造方法 |
KR102056527B1 (ko) * | 2013-05-10 | 2019-12-16 | 니뽄 고아 가부시끼가이샤 | 연료 전지용 전극 촉매, 및 촉매를 활성화시키는 방법 |
JP2015077580A (ja) * | 2013-10-18 | 2015-04-23 | トヨタ自動車株式会社 | カーボン担持触媒 |
JP5929942B2 (ja) | 2014-02-14 | 2016-06-08 | トヨタ自動車株式会社 | カーボン担持触媒 |
EP3425711A1 (en) * | 2016-02-29 | 2019-01-09 | N.E. Chemcat Corporation | Catalyst for electrode, composition for forming gas diffusion electrode, gas diffusion electrode, membrane electrode assembly, and fuel cell stack |
CN111468114B (zh) * | 2020-05-09 | 2022-12-09 | 昆明贵研催化剂有限责任公司 | 一种具备高热稳定性的柴油机氧化型催化剂及其制备方法 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58170540A (ja) * | 1982-03-30 | 1983-10-07 | Toyota Motor Corp | 排ガス浄化用触媒の製造方法 |
JPS61164645A (ja) * | 1985-01-15 | 1986-07-25 | Toyota Motor Corp | 排気ガス浄化用触媒の製造方法 |
JP3649009B2 (ja) * | 1998-12-07 | 2005-05-18 | 日本電池株式会社 | 燃料電池用電極およびその製造方法 |
JP5082187B2 (ja) * | 2003-10-06 | 2012-11-28 | 日産自動車株式会社 | 固体高分子型燃料電池用電極触媒粒子の製造方法 |
JP2005349338A (ja) * | 2004-06-11 | 2005-12-22 | Idemitsu Kosan Co Ltd | パラフィン系炭化水素の異性化触媒 |
US7507495B2 (en) * | 2004-12-22 | 2009-03-24 | Brookhaven Science Associates, Llc | Hydrogen absorption induced metal deposition on palladium and palladium-alloy particles |
US7855021B2 (en) * | 2004-12-22 | 2010-12-21 | Brookhaven Science Associates, Llc | Electrocatalysts having platium monolayers on palladium, palladium alloy, and gold alloy core-shell nanoparticles, and uses thereof |
EP2059360B1 (en) * | 2006-08-30 | 2019-04-17 | Umicore AG & Co. KG | Core/shell-type catalyst particles and methods for their preparation |
JP5169025B2 (ja) * | 2007-05-23 | 2013-03-27 | 株式会社豊田中央研究所 | 固体高分子型燃料電池 |
JP4822461B2 (ja) * | 2008-10-30 | 2011-11-24 | 独立行政法人産業技術総合研究所 | 過酸化水素の連続分解方法 |
-
2010
- 2010-12-06 JP JP2010271784A patent/JP5955501B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JP2012120949A (ja) | 2012-06-28 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5955501B2 (ja) | 白金/パラジウムコアシェル触媒の製造方法 | |
Shen et al. | Outstanding activity of sub-nm Au clusters for photocatalytic hydrogen production | |
JPWO2014178283A1 (ja) | 金属微粒子の製造方法、燃料電池用電極触媒の製造方法、担持金属微粒子触媒、及び燃料電池用電極触媒 | |
JP7397309B2 (ja) | 合金触媒の製造方法及び合金触媒 | |
Lan et al. | Composition-controllable synthesis of defect-rich PtPdCu nanoalloys with hollow cavities as superior electrocatalysts for alcohol oxidation | |
García-Rodríguez et al. | Controlled synthesis of carbon-supported Pt3Sn by impregnation-reduction and performance on the electrooxidation of CO and ethanol | |
JP5285054B2 (ja) | 酸化還元反応用合金触媒の製造方法 | |
Fedorczyk et al. | Bimetallic Au@ Pt nanoparticles dispersed in conducting polymer—A catalyst of enhanced activity towards formic acid electrooxidation | |
EP3539656A1 (en) | Material comprising precious metal isolated atoms stable in solution | |
JP5251227B2 (ja) | 合金微粒子の製造方法、合金微粒子、該合金微粒子を含む固体高分子型燃料電池用触媒、及び該合金微粒子を含む金属コロイド溶液 | |
CN103261485A (zh) | 电解用电极、电解槽和电解用电极的制造方法 | |
Tate et al. | Preparation of Pt-containing bimetallic and trimetallic catalysts using continuous electroless deposition methods | |
JP4272916B2 (ja) | 三層コア/シェル構造を有する三元系金属コロイド及び該三元系金属コロイドの製造方法 | |
Gruzeł et al. | Conversion of bimetallic PtNi 3 nanopolyhedra to ternary PtNiSn nanoframes by galvanic replacement reaction | |
JP2012192334A (ja) | 触媒微粒子の製造方法 | |
Wang et al. | Branched Pd@ Rh core@ shell nanocrystals with exposed Rh {100} facets: an effective electrocatalyst for hydrazine electro-oxidation | |
JP5649932B2 (ja) | 金属被覆金属酸化物微粒子の製造方法および金属被覆金属酸化物微粒子 | |
WO2013012398A2 (en) | Electrocatalytic composite(s), associated composition(s), and associated process(es) | |
JP2020145154A (ja) | 白金コアシェル触媒の製造方法及びそれを用いた燃料電池 | |
KR20210078497A (ko) | 합금 나노입자 생산 공정 | |
Tan et al. | Synthesis of Au@ Pt bimetallic nanoparticles with concave Au nanocuboids as seeds and their enhanced electrocatalytic properties in the ethanol oxidation reaction | |
Scheuerlein et al. | Electroless Nanoplating of Iridium: Template‐Assisted Nanotube Deposition for the Continuous Flow Reduction of 4‐Nitrophenol | |
EP3269447B1 (en) | Method for producing catalyst wherein catalyst particles having core/shell structure are supported | |
JP4709954B2 (ja) | 過酸化水素の直接合成法 | |
JP2017168385A (ja) | 白金触媒、その製造方法及び当該白金触媒を用いた燃料電池 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20130820 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20140327 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20140507 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20140618 |
|
A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20150106 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20150319 |
|
A911 | Transfer to examiner for re-examination before appeal (zenchi) |
Free format text: JAPANESE INTERMEDIATE CODE: A911 Effective date: 20150330 |
|
A912 | Re-examination (zenchi) completed and case transferred to appeal board |
Free format text: JAPANESE INTERMEDIATE CODE: A912 Effective date: 20150529 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20160224 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20160615 |
|
R151 | Written notification of patent or utility model registration |
Ref document number: 5955501 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R151 |
|
LAPS | Cancellation because of no payment of annual fees |