JP2015508216A - 傾斜触媒構造を有する燃料電池電極 - Google Patents
傾斜触媒構造を有する燃料電池電極 Download PDFInfo
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- 239000003054 catalyst Substances 0.000 title claims abstract description 47
- 239000000446 fuel Substances 0.000 title claims description 32
- 239000002245 particle Substances 0.000 claims abstract description 48
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims abstract description 47
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 28
- 229910052697 platinum Inorganic materials 0.000 claims abstract description 23
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 18
- 239000012528 membrane Substances 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims description 17
- 238000009792 diffusion process Methods 0.000 claims description 7
- 229910052723 transition metal Inorganic materials 0.000 claims description 3
- 150000003624 transition metals Chemical class 0.000 claims description 3
- 239000003575 carbonaceous material Substances 0.000 claims description 2
- 239000000203 mixture Substances 0.000 abstract description 5
- 239000000956 alloy Substances 0.000 abstract description 3
- 229910045601 alloy Inorganic materials 0.000 abstract description 3
- 239000006229 carbon black Substances 0.000 abstract description 3
- 235000019241 carbon black Nutrition 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 5
- 229920000554 ionomer Polymers 0.000 description 4
- -1 for example Substances 0.000 description 3
- 239000000376 reactant Substances 0.000 description 3
- 239000006230 acetylene black Substances 0.000 description 2
- 239000006231 channel black Substances 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003487 electrochemical reaction Methods 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 239000006232 furnace black Substances 0.000 description 2
- 239000006233 lamp black Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000007800 oxidant agent Substances 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 239000006234 thermal black Substances 0.000 description 2
- 229920000557 Nafion® Polymers 0.000 description 1
- 238000001016 Ostwald ripening Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 239000010411 electrocatalyst Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
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- H01M4/90—Selection of catalytic material
- H01M4/9041—Metals or alloys
- H01M4/905—Metals or alloys specially used in fuel cell operating at high temperature, e.g. SOFC
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Abstract
Description
Claims (13)
- 第1の層と、
第1の層に隣接する第2の層と、
を備える、燃料電池電極アッセンブリであって、
第1の層は、プロトン交換膜に隣接する第1の平均粒径の第1の触媒粒子を有する第1の支持体材料を備え、
第2の層は、気体拡散層に隣接する第2の平均粒径の第2の触媒粒子を有する第2の支持体材料を備え、
第1の平均粒径は、第2の平均粒径より大きいことを特徴とする燃料電池電極アッセンブリ。 - 第1および第2の触媒粒子は、遷移金属であることを特徴とする請求項1記載の燃料電池電極アッセンブリ。
- 遷移金属は、白金を含むことを特徴とする請求項2記載の燃料電池電極アッセンブリ。
- 第1および第2の平均粒径はそれぞれ、約4〜10nmおよび2〜5nmであることを特徴とする請求項1記載の燃料電池電極アッセンブリ。
- 第1および第2の平均粒径は、約6nmおよび3nmであることを特徴とする請求項4記載の燃料電池電極アッセンブリ。
- 第1および第2の支持体材料は、互いに異なることを特徴とする請求項1記載の燃料電池電極アッセンブリ。
- 第1および第2の支持体材料はそれぞれ、安定化炭素および通常の炭素であることを特徴とする請求項6記載の燃料電池電極アッセンブリ。
- 第1および第2の支持体材料はそれぞれ、互いに異なる第1および第2の厚みを有することを特徴とする請求項6記載の燃料電池電極アッセンブリ。
- 炭素材料は、約50%の多孔度を有することを特徴とする請求項6記載の燃料電池電極アッセンブリ。
- 第1および第2の層はそれぞれ、約60重量パーセントおよび50重量パーセントに相当する第1および第2の触媒粒子を備えることを特徴とする請求項4記載の燃料電池電極アッセンブリ。
- 第1および第2の層への白金充填量は、約0.1〜0.2mg/cm2であることを特徴とする請求項4記載の燃料電池電極アッセンブリ。
- プロトン交換膜と気体拡散層との間に配置された触媒を備える燃料電池電極アッセンブリであって、触媒は、互いに混合された第1および第2の触媒粒子を有する支持体材料を備え、第1および第2の触媒粒子はそれぞれ、第1および第2の平均粒径を有し、第1の平均粒径は、第2の平均粒径より大きく、第1および第2の平均粒径はそれぞれ、約4〜10nmおよび2〜5nmであることを特徴とする燃料電池電極アッセンブリ。
- 第1および第2の触媒粒子は、白金であることを特徴とする請求項12記載の燃料電池電極アッセンブリ。
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PCT/US2012/021972 WO2013109283A1 (en) | 2012-01-20 | 2012-01-20 | Fuel cell electrode with gradient catalyst structure |
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JP5900995B2 JP5900995B2 (ja) | 2016-04-06 |
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US (1) | US9761899B2 (ja) |
EP (1) | EP2805368B1 (ja) |
JP (1) | JP5900995B2 (ja) |
KR (1) | KR101867132B1 (ja) |
CN (1) | CN104247114B (ja) |
CA (1) | CA2862291C (ja) |
WO (1) | WO2013109283A1 (ja) |
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US9484583B2 (en) * | 2013-10-14 | 2016-11-01 | Nissan North America, Inc. | Fuel cell electrode catalyst having graduated layers |
US10205173B2 (en) | 2014-07-08 | 2019-02-12 | Bdf Ip Holdings Ltd. | Cathode design for electrochemical cells |
US20180198146A1 (en) * | 2015-07-10 | 2018-07-12 | Daimler Ag | Multi-layer fuel cell electrodes with different loadings on the supported catalysts |
US11909083B2 (en) | 2018-12-28 | 2024-02-20 | Xerox Corporation | Apparatus and method for forming a multilayer extrusion comprising component layers of an electrochemical cell |
CN110993960A (zh) * | 2019-11-11 | 2020-04-10 | 上海交通大学 | 一种强化催化剂耐久性的阴极催化层结构及其制备方法 |
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JP2004111191A (ja) * | 2002-09-18 | 2004-04-08 | Toyota Motor Corp | 燃料電池用の膜・電極触媒構造体 |
JP2006079917A (ja) * | 2004-09-09 | 2006-03-23 | Nissan Motor Co Ltd | 燃料電池用mea、および、これを用いた燃料電池 |
JP2006179463A (ja) * | 2004-11-25 | 2006-07-06 | Nissan Motor Co Ltd | 固体高分子型燃料電池 |
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KR20140143358A (ko) | 2014-12-16 |
EP2805368B1 (en) | 2020-03-11 |
JP5900995B2 (ja) | 2016-04-06 |
CA2862291C (en) | 2017-09-05 |
CN104247114B (zh) | 2017-09-29 |
CA2862291A1 (en) | 2013-07-25 |
WO2013109283A1 (en) | 2013-07-25 |
EP2805368A1 (en) | 2014-11-26 |
EP2805368A4 (en) | 2016-02-10 |
US20140356757A1 (en) | 2014-12-04 |
CN104247114A (zh) | 2014-12-24 |
US9761899B2 (en) | 2017-09-12 |
KR101867132B1 (ko) | 2018-06-12 |
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