JP2009259417A - 電極触媒の製造方法 - Google Patents
電極触媒の製造方法 Download PDFInfo
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- JP2009259417A JP2009259417A JP2008103841A JP2008103841A JP2009259417A JP 2009259417 A JP2009259417 A JP 2009259417A JP 2008103841 A JP2008103841 A JP 2008103841A JP 2008103841 A JP2008103841 A JP 2008103841A JP 2009259417 A JP2009259417 A JP 2009259417A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 37
- 239000010411 electrocatalyst Substances 0.000 title claims abstract description 10
- 239000003054 catalyst Substances 0.000 claims abstract description 133
- 239000002245 particle Substances 0.000 claims abstract description 76
- 238000000034 method Methods 0.000 claims abstract description 52
- 239000000463 material Substances 0.000 claims abstract description 41
- 229910052751 metal Inorganic materials 0.000 claims abstract description 35
- 239000002184 metal Substances 0.000 claims abstract description 35
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 26
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 26
- 239000002243 precursor Substances 0.000 claims abstract description 11
- 239000002904 solvent Substances 0.000 claims abstract description 11
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 104
- 229910052697 platinum Inorganic materials 0.000 claims description 52
- 230000008021 deposition Effects 0.000 claims description 22
- 239000000126 substance Substances 0.000 claims description 19
- 238000003756 stirring Methods 0.000 claims description 10
- 230000006837 decompression Effects 0.000 claims description 9
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 230000001678 irradiating effect Effects 0.000 claims description 2
- 230000008569 process Effects 0.000 abstract description 40
- 238000000151 deposition Methods 0.000 abstract description 22
- 238000001035 drying Methods 0.000 description 33
- 238000007740 vapor deposition Methods 0.000 description 15
- 239000000446 fuel Substances 0.000 description 11
- 238000011068 loading method Methods 0.000 description 10
- 230000002776 aggregation Effects 0.000 description 8
- 239000012212 insulator Substances 0.000 description 8
- CLBRCZAHAHECKY-UHFFFAOYSA-N [Co].[Pt] Chemical compound [Co].[Pt] CLBRCZAHAHECKY-UHFFFAOYSA-N 0.000 description 7
- 238000004220 aggregation Methods 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 6
- 238000002474 experimental method Methods 0.000 description 6
- 239000010419 fine particle Substances 0.000 description 6
- 239000002923 metal particle Substances 0.000 description 6
- 238000010248 power generation Methods 0.000 description 6
- 239000000843 powder Substances 0.000 description 5
- 238000004544 sputter deposition Methods 0.000 description 5
- 239000002253 acid Substances 0.000 description 4
- 230000003197 catalytic effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000001704 evaporation Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 229910001260 Pt alloy Inorganic materials 0.000 description 2
- 239000004809 Teflon Substances 0.000 description 2
- 229920006362 Teflon® Polymers 0.000 description 2
- 238000005054 agglomeration Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010891 electric arc Methods 0.000 description 2
- 238000005240 physical vapour deposition Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009954 braiding Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000002354 daily effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000005518 polymer electrolyte Substances 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000013077 target material Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/90—Selection of catalytic material
- H01M4/92—Metals of platinum group
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
- C23C4/06—Metallic material
- C23C4/067—Metallic material containing free particles of non-metal elements, e.g. carbon, silicon, boron, phosphorus or arsenic
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
- C23C4/134—Plasma spraying
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/90—Selection of catalytic material
- H01M4/92—Metals of platinum group
- H01M4/925—Metals of platinum group supported on carriers, e.g. powder carriers
- H01M4/926—Metals of platinum group supported on carriers, e.g. powder carriers on carbon or graphite
-
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Inert Electrodes (AREA)
- Catalysts (AREA)
- Physical Vapour Deposition (AREA)
Abstract
【解決手段】溶媒Y中に、カーボン等の担体Cと、触媒物質もしくは触媒物質前駆体S1’と、を分散させ、攪拌して、担体C表面に触媒物質S1が付着してなる電極触媒の中間体T1を生成する第1の工程(ウェットプロセス)と、この中間体T1の表面に、ドライ条件下にて触媒物質S2をさらに付着させて触媒担持担体粒子T2を生成する第2の工程(ドライプロセス)と、からなる電極触媒の製造方法である。
【選択図】図4
Description
本発明者等は、アークプラズマ蒸着法のみ(ドライプロセスのみ)によってカーボン粒子表面に40重量%の白金コバルト粒子を担持させた場合(比較例)と、本発明の製造方法、すなわち、ウェットプロセスの後にアークプラズマ蒸着(ドライプロセス)を適用してカーボン粒子表面に40重量%の白金コバルト粒子を担持させた場合(実施例)とで、双方の有効白金面積を比較する実験を試みた。
本発明者等はさらに、ウェットプロセスからドライプロセスへの最適な切換えタイミングを特定するに当たり、ウェットプロセスにおける触媒金属の担持量とそれに応じた平均粒径を計測し、さらに、各平均粒径ごとの有効白金面積を計測した。
Claims (6)
- 溶媒中に、担体と、触媒物質もしくは触媒物質前駆体と、を分散させ、攪拌して、担体表面に触媒物質が付着してなる触媒担持担体の中間体を生成する第1の工程と、
前記中間体の表面に、ドライ条件下にて触媒物質をさらに付着させて触媒担持担体を生成する第2の工程と、からなる電極触媒の製造方法。 - 前記第1の工程で生成される触媒担持担体の中間体において、担体表面に付着した触媒物質の粒径が略3nm(ナノメートル)である、請求項1に記載の電極触媒の製造方法。
- 前記第1の工程で生成される触媒担持担体の中間体において、担体表面に付着した触媒物質が略30重量%以下である、請求項1または2に記載の電極触媒の製造方法。
- 前記第2の工程はアークプラズマ蒸着によるものであり、前記触媒担持担体の中間体にアークプラズマを照射することにより、該中間体に前記触媒物質を担持させる、請求項1〜3のいずれかに記載の電極触媒の製造方法。
- 前記アークプラズマ蒸着は、アークプラズマ発生装置と、該アークプラズマ発生装置に連通するとともに前記触媒担持担体の中間体をその内部に収容または載置し、その内部が減圧雰囲気に調整される減圧容器と、を少なくとも備えてなる、アークプラズマ蒸着装置を使用しておこなわれるものである、請求項4に記載の電極触媒の製造方法。
- 前記触媒物質もしくは触媒物質前駆体中の触媒金属が白金またはその合金からなり、前記担体がカーボン担体からなる、請求項1〜5のいずれかに記載の電極触媒の製造方法。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008103841A JP4466760B2 (ja) | 2008-04-11 | 2008-04-11 | 電極触媒の製造方法 |
PCT/JP2009/056876 WO2009125715A1 (ja) | 2008-04-11 | 2009-04-02 | 電極触媒の製造方法 |
EP09729641.2A EP2278646B8 (en) | 2008-04-11 | 2009-04-02 | Method for the production of an electrode catalyst |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008103841A JP4466760B2 (ja) | 2008-04-11 | 2008-04-11 | 電極触媒の製造方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2009259417A true JP2009259417A (ja) | 2009-11-05 |
JP4466760B2 JP4466760B2 (ja) | 2010-05-26 |
Family
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Application Number | Title | Priority Date | Filing Date |
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JP2008103841A Expired - Fee Related JP4466760B2 (ja) | 2008-04-11 | 2008-04-11 | 電極触媒の製造方法 |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2278646B8 (ja) |
JP (1) | JP4466760B2 (ja) |
WO (1) | WO2009125715A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101577649B1 (ko) | 2013-11-22 | 2015-12-17 | 한국과학기술연구원 | 스퍼터링을 이용한 탄소 담지 백금 촉매 제조방법 |
KR20180057276A (ko) | 2016-11-22 | 2018-05-30 | 한국과학기술연구원 | 이산화탄소 환원용 촉매와 그 제조방법 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
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JP3620842B2 (ja) | 2002-12-25 | 2005-02-16 | 孝之 阿部 | 多角バレルスパッタ装置、多角バレルスパッタ方法及びそれにより形成された被覆微粒子、被覆微粒子の製造方法 |
JP4052517B2 (ja) * | 2004-06-25 | 2008-02-27 | 孝之 阿部 | 担持微粒子の製造方法 |
JP4713959B2 (ja) * | 2005-06-23 | 2011-06-29 | 株式会社東芝 | 燃料電池用担持触媒および燃料電池 |
JP2007179963A (ja) * | 2005-12-28 | 2007-07-12 | Kasatani:Kk | 燃料電池用触媒の製造方法及び触媒の担持方法 |
FR2897070B1 (fr) * | 2006-02-03 | 2008-12-19 | Commissariat Energie Atomique | Procede dli-mocvd pour la fabrication d'electrodes pour reacteurs electrochimiques, electrodes obtenues par ce procede et pile a combustible et accumulateur mettant en oeuvre de telles electrodes |
JP5108240B2 (ja) * | 2006-03-20 | 2012-12-26 | トヨタ自動車株式会社 | 燃料電池及び燃料電池の製造方法 |
KR100846478B1 (ko) * | 2006-05-16 | 2008-07-17 | 삼성에스디아이 주식회사 | 담지 촉매, 그 제조방법 및 이를 이용한 연료전지 |
-
2008
- 2008-04-11 JP JP2008103841A patent/JP4466760B2/ja not_active Expired - Fee Related
-
2009
- 2009-04-02 EP EP09729641.2A patent/EP2278646B8/en not_active Not-in-force
- 2009-04-02 WO PCT/JP2009/056876 patent/WO2009125715A1/ja active Application Filing
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101577649B1 (ko) | 2013-11-22 | 2015-12-17 | 한국과학기술연구원 | 스퍼터링을 이용한 탄소 담지 백금 촉매 제조방법 |
KR20180057276A (ko) | 2016-11-22 | 2018-05-30 | 한국과학기술연구원 | 이산화탄소 환원용 촉매와 그 제조방법 |
Also Published As
Publication number | Publication date |
---|---|
EP2278646B8 (en) | 2013-06-12 |
EP2278646B1 (en) | 2013-01-16 |
WO2009125715A1 (ja) | 2009-10-15 |
EP2278646A1 (en) | 2011-01-26 |
JP4466760B2 (ja) | 2010-05-26 |
EP2278646A4 (en) | 2011-09-14 |
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