CN109331813A - Catalyst, preparation method, catalysis Enhancement Method, purification device - Google Patents
Catalyst, preparation method, catalysis Enhancement Method, purification device Download PDFInfo
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- CN109331813A CN109331813A CN201811301724.4A CN201811301724A CN109331813A CN 109331813 A CN109331813 A CN 109331813A CN 201811301724 A CN201811301724 A CN 201811301724A CN 109331813 A CN109331813 A CN 109331813A
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- precious metal
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- 239000003054 catalyst Substances 0.000 title claims abstract description 38
- 238000006555 catalytic reaction Methods 0.000 title claims abstract description 15
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- 238000000746 purification Methods 0.000 title claims abstract description 12
- 238000000034 method Methods 0.000 title claims abstract description 11
- 229910000510 noble metal Inorganic materials 0.000 claims abstract description 55
- 229910000923 precious metal alloy Inorganic materials 0.000 claims abstract description 37
- 239000000463 material Substances 0.000 claims abstract description 16
- 238000006243 chemical reaction Methods 0.000 claims abstract description 10
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 20
- 239000002105 nanoparticle Substances 0.000 claims description 20
- 239000002082 metal nanoparticle Substances 0.000 claims description 18
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 10
- 239000002245 particle Substances 0.000 claims description 10
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 230000001413 cellular effect Effects 0.000 claims description 6
- 239000000919 ceramic Substances 0.000 claims description 6
- 239000012266 salt solution Substances 0.000 claims description 6
- 239000000758 substrate Substances 0.000 claims description 6
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 claims description 4
- 239000005751 Copper oxide Substances 0.000 claims description 4
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 claims description 4
- COOGPNLGKIHLSK-UHFFFAOYSA-N aluminium sulfide Chemical compound [Al+3].[Al+3].[S-2].[S-2].[S-2] COOGPNLGKIHLSK-UHFFFAOYSA-N 0.000 claims description 4
- NNLOHLDVJGPUFR-UHFFFAOYSA-L calcium;3,4,5,6-tetrahydroxy-2-oxohexanoate Chemical compound [Ca+2].OCC(O)C(O)C(O)C(=O)C([O-])=O.OCC(O)C(O)C(O)C(=O)C([O-])=O NNLOHLDVJGPUFR-UHFFFAOYSA-L 0.000 claims description 4
- 229910000431 copper oxide Inorganic materials 0.000 claims description 4
- 239000011669 selenium Substances 0.000 claims description 4
- 229910052711 selenium Inorganic materials 0.000 claims description 4
- 238000005286 illumination Methods 0.000 claims description 3
- 150000002505 iron Chemical class 0.000 claims description 3
- 239000000377 silicon dioxide Substances 0.000 claims description 3
- 150000003608 titanium Chemical class 0.000 claims description 3
- 229910052793 cadmium Inorganic materials 0.000 claims 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 claims 1
- 238000004073 vulcanization Methods 0.000 claims 1
- 230000003197 catalytic effect Effects 0.000 abstract description 9
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 26
- 229910052697 platinum Inorganic materials 0.000 description 13
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 description 12
- 229910052741 iridium Inorganic materials 0.000 description 12
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 description 12
- 229910052707 ruthenium Inorganic materials 0.000 description 12
- 230000000694 effects Effects 0.000 description 7
- 230000008859 change Effects 0.000 description 5
- 238000001035 drying Methods 0.000 description 4
- WUPHOULIZUERAE-UHFFFAOYSA-N 3-(oxolan-2-yl)propanoic acid Chemical compound OC(=O)CCC1CCCO1 WUPHOULIZUERAE-UHFFFAOYSA-N 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 229910052980 cadmium sulfide Inorganic materials 0.000 description 3
- 238000001311 chemical methods and process Methods 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 3
- 230000002708 enhancing effect Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000002195 synergetic effect Effects 0.000 description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 239000005864 Sulphur Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007789 gas Substances 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
- 229910000575 Ir alloy Inorganic materials 0.000 description 1
- 229910001260 Pt alloy Inorganic materials 0.000 description 1
- 229910000929 Ru alloy Inorganic materials 0.000 description 1
- 229910003978 SiClx Inorganic materials 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 230000005622 photoelectricity Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Classifications
-
- 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
- B01J33/00—Protection of catalysts, e.g. by coating
-
- 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
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
-
- 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
-
- 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
- B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
- B01J23/46—Ruthenium, rhodium, osmium or iridium
- B01J23/462—Ruthenium
-
- 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
- B01J23/46—Ruthenium, rhodium, osmium or iridium
- B01J23/464—Rhodium
-
- 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
- B01J23/46—Ruthenium, rhodium, osmium or iridium
- B01J23/468—Iridium
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Catalysts (AREA)
Abstract
The present invention provides a kind of catalyst, preparation method, catalysis Enhancement Method, purification device, for solving the problems, such as that catalytic effect is bad in the prior art.The present invention provides a kind of catalyst, comprising: kernel, the kernel include noble metal or precious metal alloys, and the kernel is for occurring catalysis reaction；At least one layer of clad, the clad are coated on the kernel；The clad is made of light-sensitive material.For fortifying catalytic effect.
Description
Technical field
The present invention relates to a kind of catalyst field, more particularly to a kind of catalyst, preparation method, catalysis Enhancement Method,
Purification device.
Background technique
The polyhedron of noble metal (such as platinum, ruthenium, iridium) or precious metal alloys granule-morphology is the stabilization being commonly used
One of noble metal (such as platinum, ruthenium, iridium) or the method for precious metal alloys catalyst, such as construct the polyhedral structure of platinum, pass through multi-panel
Bodyization changes the crystal face of noble metal (such as platinum, ruthenium, iridium) or precious metal alloys particle surface, thus stablize noble metal (such as platinum, ruthenium,
Iridium) or precious metal alloys catalyst.
The shortcomings that prior art is that preparation method is complicated, preparation cost is high, noble metal (such as platinum, ruthenium, iridium) or noble metal close
Gold particle partial size causes greatly specific mass performance to decline, and is easy to reunite, fall off.
Summary of the invention
In view of the foregoing deficiencies of prior art, the purpose of the present invention is to provide a kind of catalyst, preparation method, urge
Change Enhancement Method, purification device, for solving the problems, such as that catalytic effect is bad in the prior art.
In order to achieve the above objects and other related objects, the present invention provides a kind of catalyst, comprising:
Kernel, the kernel include noble metal or precious metal alloys, and the kernel is for occurring catalysis reaction；
At least one layer of clad, the clad are coated on the kernel；
The clad is made of light-sensitive material.
Optionally, the overall thickness of each clad is between 0.2nm-2nm.
Optionally, the diameter of the kernel is between 1nm-50nm.
Optionally, the kernel includes individual particle the or granose noble metal or precious metal alloys.
Optionally, the clad includes titanium oxide, iron oxide, cadmium sulfide, selenium, aluminium sulfide, vulcanized lead, bismuth sulfide, oxygen
One or more of SiClx, copper oxide.
Optionally, the clad is equipped with through-hole.
The preparation method of catalyst,
The clad includes titanium oxide；
Prepare noble metal nano particles or precious metal alloys nano particle；
By noble metal nano particles, perhaps precious metal alloys nano particle is put into titanium salt solution then drying or is burnt
Knot is so that the surface of the noble metal nano particles or precious metal alloys nano particle forms titanium oxide.
Optionally, the clad includes iron oxide；
Prepare noble metal nano particles or precious metal alloys nano particle；
By noble metal nano particles, perhaps precious metal alloys nano particle is put into iron salt solutions then drying or is burnt
Knot is so that the surface of the noble metal nano particles or precious metal alloys nano particle forms iron oxide.
A kind of catalysis Enhancement Method includes at least following steps:
In catalysis reaction, by catalyst described in illumination directive, the kernel of the catalyst includes noble metal or noble metal
Alloy, the clad of the catalyst are light-sensitive material.
A kind of purification device, for handling exhaust-gas treatment, the purification device includes:
Cellular ceramic substrate, the cellular ceramic substrate surface covering catalyst.
As described above, catalyst of the invention, preparation method, catalysis Enhancement Method, purification device, at least have with following
Beneficial effect: noble metal or precious metal alloys nano particle are coated by light-sensitive material, pass through the photoelectricity of photon and covering material
Conversion, provides reducing environment to noble metal, avoids the ionization of noble metal (such as platinum, ruthenium, iridium) or precious metal alloys particle,
Play a part of to stablizing noble metal.The synergistic effect enhancing catalyst of photon, covering material and noble metal is in chemical process
Activity.Clad can protect noble metal (such as platinum, ruthenium, iridium) or precious metal alloys particle, its dispersion is made to avoid it from reuniting, is de-
It falls, to increase catalytic stability.
Detailed description of the invention
Fig. 1 is shown as a kind of embodiment schematic diagram of catalyst of the invention.
Fig. 2 is shown as a kind of embodiment schematic diagram of catalyst of the invention.
Component label instructions
1 kernel
2 clads
21 through-holes
Specific embodiment
Embodiments of the present invention are illustrated by particular specific embodiment below, those skilled in the art can be by this explanation
Content disclosed by book is understood other advantages and efficacy of the present invention easily.
Fig. 1 is please referred to Fig. 2.It should be clear that this specification structure depicted in this specification institute accompanying drawings, ratio, size etc., only to
Cooperate the revealed content of specification, so that those skilled in the art understands and reads, being not intended to limit the invention can be real
The qualifications applied, therefore do not have technical essential meaning, the tune of the modification of any structure, the change of proportionate relationship or size
It is whole, in the case where not influencing the effect of present invention can be generated and the purpose that can reach, it should all still fall in disclosed skill
In the range of art content can cover.Meanwhile in this specification it is cited as "upper", "lower", "left", "right", " centre " and
The term of " one " etc. is merely convenient to being illustrated for narration, rather than to limit the scope of the invention, relativeness
It is altered or modified, under the content of no substantial changes in technology, when being also considered as the enforceable scope of the present invention.
Each embodiment is only for the purpose of illustration below.Between each embodiment, it can be combined, not only limit
In the content that following single embodiment shows.
Referring to Fig. 2, the present invention provides a kind of catalyst in the present embodiment, comprising:
Kernel 1, the kernel 1 include noble metal or precious metal alloys, and noble metal can be platinum, ruthenium, iridium etc., noble metal
Alloy can be for such as platinum alloy, ruthenium alloy, iridium alloy；
The kernel 1 is for occurring catalysis reaction；
One layer of clad 2, the clad 2 are coated on the kernel 1；
The clad 2 is made of light-sensitive material.
Referring to Fig. 2, in the present embodiment, referring to Fig. 1, in the present embodiment, at least two layers of clad 2.
By the photoelectric conversion of photon and covering material, reducing environment is provided to noble metal, avoids noble metal (such as
Platinum, ruthenium, iridium) or precious metal alloys particle ionization, play a part of to stablizing noble metal.Photon, covering material and your gold
Activity of the synergistic effect enhancing catalyst of category in chemical process.Clad 2 can protect noble metal (such as platinum, ruthenium, iridium) or
Precious metal alloys particle makes its dispersion that it be avoided to reunite, fall off, to increase catalytic stability.
Referring to Fig. 2, the overall thickness of each clad 2 is between 0.2nm-2nm in the present embodiment.Clad 2
Overall thickness can be 0.2nm, 0.5nm, 1nm, 1.5nm, 2nm etc..
What the clad of sub-nanometer or nano-scale ensure that material leads Electronic Performance.Coating thickness crosses conference obstruction
The mass transfer of charge and reactant molecule reduces catalytic efficiency；The too small structural instability that will cause clad of coating thickness rises
Less than the effect of fortifying catalytic effect.
Referring to Fig. 2, the diameter of the kernel 1 is between 1nm-50nm in the present embodiment.The diameter of kernel 1 can be
1nm, 10nm, 20nm, 40nm, 50nm etc..
Referring to Fig. 2, in the present embodiment, the kernel 1 include individual particle the or granose noble metal or
Precious metal alloys.
Referring to Fig. 2, the clad 2 includes titanium oxide, iron oxide, cadmium sulfide, selenium, aluminium sulfide, sulphur in the present embodiment
Change one of lead, bismuth sulfide, silica, copper oxide.
Referring to Fig. 2, the clad 2 includes titanium oxide, iron oxide, cadmium sulfide, selenium, aluminium sulfide, sulphur in the present embodiment
Change lead, bismuth sulfide, silica, two or more in copper oxide.
Referring to Fig. 2, the clad 2 is equipped with through-hole 21 in the present embodiment.When through-hole is arranged, in the thickness of clad 2
When degree is greater than 2nm, due to the presence of through-hole 21, it still is able to effectively generate catalytic action, and reach physical isolation simultaneously
Effect, avoid reuniting.
The preparation method of the catalyst of any of the above embodiment,
The clad 2 includes titanium oxide；
Prepare noble metal nano particles or precious metal alloys nano particle；
By noble metal nano particles, perhaps precious metal alloys nano particle is put into titanium salt solution then drying or is burnt
Knot is so that the surface of the noble metal nano particles or precious metal alloys nano particle forms titanium oxide.
In the present embodiment, the clad 2 includes iron oxide；
Prepare noble metal nano particles or precious metal alloys nano particle；
By noble metal nano particles, perhaps precious metal alloys nano particle is put into iron salt solutions then drying or is burnt
Knot is so that the surface of the noble metal nano particles or precious metal alloys nano particle forms iron oxide.
A kind of catalysis Enhancement Method includes at least following steps:
In catalysis reaction, by catalyst described in illumination directive, the kernel 1 of the catalyst includes noble metal or noble metal
Alloy, the clad 2 of the catalyst are light-sensitive material.
A kind of purification device, for handling exhaust-gas treatment, the purification device includes:
Cellular ceramic substrate, the cellular ceramic substrate surface covering catalyst.
In conclusion the present invention coats noble metal or precious metal alloys nano particle by light-sensitive material, pass through photon
With the photoelectric conversion of covering material, reducing environment is provided to noble metal, avoids noble metal (such as platinum, ruthenium, iridium) or noble metal
The ionization of alloying pellet has play a part of to stablizing noble metal.The synergistic effect enhancing of photon, covering material and noble metal is urged
Activity of the agent in chemical process.Clad can protect noble metal (such as platinum, ruthenium, iridium) or precious metal alloys particle, make it
Dispersion avoids it from reuniting, fall off, to increase catalytic stability.So the present invention effectively overcome it is in the prior art various
Disadvantage and have high industrial utilization value.
The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.It is any ripe
The personage for knowing this technology all without departing from the spirit and scope of the present invention, carries out modifications and changes to above-described embodiment.Cause
This, institute is complete without departing from the spirit and technical ideas disclosed in the present invention by those of ordinary skill in the art such as
At all equivalent modifications or change, should be covered by the claims of the present invention.
Claims (10)
1. a kind of catalyst characterized by comprising
Kernel, the kernel include noble metal or precious metal alloys, and the kernel is for occurring catalysis reaction；
At least one layer of clad, the clad are coated on the kernel；
The clad is made of light-sensitive material.
2. catalyst according to claim 1, it is characterised in that: the overall thickness of each clad is in 0.2nm-2nm
Between.
3. catalyst according to claim 1, it is characterised in that: the diameter of the kernel is between 1nm-50nm.
4. catalyst according to claim 1, it is characterised in that: the kernel includes individual particle or granose institute
State noble metal or precious metal alloys.
5. catalyst according to claim 1, it is characterised in that: the clad includes titanium oxide, iron oxide, vulcanization
One or more of cadmium, selenium, aluminium sulfide, vulcanized lead, bismuth sulfide, silica, copper oxide.
6. catalyst according to claim 1, it is characterised in that: the clad is equipped with through-hole.
7. the preparation method of -5 any catalyst according to claim 1, it is characterised in that:
The clad includes titanium oxide；
Prepare noble metal nano particles or precious metal alloys nano particle；
By noble metal nano particles perhaps precious metal alloys nano particle be put into titanium salt solution then dry or be sintered make
The surface for obtaining the noble metal nano particles or precious metal alloys nano particle forms titanium oxide.
8. the preparation method of -5 any catalyst according to claim 1, it is characterised in that:
The clad includes iron oxide；
Prepare noble metal nano particles or precious metal alloys nano particle；
By noble metal nano particles perhaps precious metal alloys nano particle be put into iron salt solutions then dry or be sintered make
The surface for obtaining the noble metal nano particles or precious metal alloys nano particle forms iron oxide.
9. a kind of catalysis Enhancement Method, it is characterised in that: include at least following steps:
In catalysis reaction, by catalyst described in illumination directive, the kernel of the catalyst includes noble metal or precious metal alloys,
The clad of the catalyst is light-sensitive material.
10. a kind of purification device, for handling exhaust-gas treatment, which is characterized in that the purification device includes:
Cellular ceramic substrate, any catalyst of the cellular ceramic substrate surface covering claim 1-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811301724.4A CN109331813A (en) | 2018-11-02 | 2018-11-02 | Catalyst, preparation method, catalysis Enhancement Method, purification device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811301724.4A CN109331813A (en) | 2018-11-02 | 2018-11-02 | Catalyst, preparation method, catalysis Enhancement Method, purification device |
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| CN201811301724.4A Pending CN109331813A (en) | 2018-11-02 | 2018-11-02 | Catalyst, preparation method, catalysis Enhancement Method, purification device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110975883A (en) * | 2019-12-05 | 2020-04-10 | 东北石油大学 | Preparation method of bifunctional core-shell catalyst for preparing aviation kerosene through carbon dioxide hydrogenation |
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| CN101862627A (en) * | 2010-04-29 | 2010-10-20 | 上海师范大学 | Preparation method of titanium dioxide microcapsule coating noble metal nano particles |
| CN102091642A (en) * | 2010-12-20 | 2011-06-15 | 昆明理工大学 | Method for preparing composite oxide supported nano noble metal granule catalyst |
| CN103055849A (en) * | 2012-12-27 | 2013-04-24 | 新奥科技发展有限公司 | Composite catalyst for catalytic combustion and preparation method of composite catalyst |
| CN103212413A (en) * | 2013-03-29 | 2013-07-24 | 北京工业大学 | Thermal stabilization core-shell structure nano three-way catalyst and preparation method thereof |
| CN103566938A (en) * | 2013-11-04 | 2014-02-12 | 太原理工大学 | Preparation method for preparing synthesis gas NiO@SiO2 core-shell type catalyst by employing low-concentration coalbed methane |
| CN103933972A (en) * | 2014-04-21 | 2014-07-23 | 国家纳米科学中心 | Method for preparing precious metal titanium dioxide core-shell structure |
| CN105032385A (en) * | 2015-07-08 | 2015-11-11 | 华中科技大学 | Preparation method for metal oxide/platinum nanoparticle composite catalyst |
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