KR100728611B1 - 연료전지용 전극 촉매 및 그의 제조 방법 - Google Patents
연료전지용 전극 촉매 및 그의 제조 방법 Download PDFInfo
- Publication number
- KR100728611B1 KR100728611B1 KR1020050113468A KR20050113468A KR100728611B1 KR 100728611 B1 KR100728611 B1 KR 100728611B1 KR 1020050113468 A KR1020050113468 A KR 1020050113468A KR 20050113468 A KR20050113468 A KR 20050113468A KR 100728611 B1 KR100728611 B1 KR 100728611B1
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- KR
- South Korea
- Prior art keywords
- carbon
- transition metal
- fuel cell
- catalyst
- conductive polymer
- 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.)
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Images
Classifications
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- 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
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- H—ELECTRICITY
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- H—ELECTRICITY
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- H—ELECTRICITY
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- H—ELECTRICITY
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/10—Fuel cells with solid electrolytes
- H01M8/1007—Fuel cells with solid electrolytes with both reactants being gaseous or vaporised
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- 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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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Inert Electrodes (AREA)
- Fuel Cell (AREA)
Abstract
Description
Claims (21)
- 탄소계 담체;상기 탄소계 담체의 표면의 전부 또는 일부를 코팅하고 있는 전기전도성 고분자;상기 전기전도성 고분자의 표면에 분포하는 전이 금속 활성 성분 입자; 및상기 전기전도성 고분자의 내부에 분포하는 전이금속의 염화물, 질화물, 또는 황산화물, 또는 전이 금속 활성 성분 원자를 포함하는 연료전지용 전극 촉매.
- 제 1 항에 있어서, 상기 전기전도성 고분자가 폴리피롤(polypyrrole), 폴리아닐린(polyaniline), 폴리티오펜(polythiophene), 폴리에틸렌디옥시티오펜(polyethylenedioxythiophene), 폴리티에닐렌비닐렌(polythienylenevinylene), 폴리파라페닐렌설파이드(poly(p-phenylenesulfide)) 또는 이들의 혼합물인 것을 특징으로 하는 연료전지용 전극 촉매.
- 제 1 항에 있어서, 상기 전기전도성 고분자의 두께가 0.1 nm 내지 1000 nm인 것을 특징으로 하는 연료전지용 전극 촉매.
- 제 1 항에 있어서, 상기 전기전도성 고분자의 두께가 0.5 nm 내지 100 nm인 것을 특징으로 하는 연료전지용 전극 촉매.
- 제 1 항에 있어서, 상기 전이 금속 활성 성분이 백금(Pt), 루테늄(Ru), 이리듐(Ir), 텅스텐(W), 코발트(Co), 니켈(Ni), 철(Fe), 오스뮴(Os), 로듐(Rh), 레늄(Re) 또는 이들의 합금인 것을 특징으로 하는 연료전지용 전극 촉매.
- 제 1 항에 있어서, 상기 전이금속 활성성분 입자의 평균 입경이 1 nm 내지 500 nm인 것을 특징으로 하는 연료전지용 전극 촉매.
- 제 1 항에 있어서, 상기 탄소계 담체가 흑연, 탄소 분말, 아세틸렌 블랙, 카본 블랙, 활성 카본, 중다공성 카본, 탄소나노튜브, 탄소나노섬유, 탄소나노혼, 탄소나노링, 탄소나노와이어, 또는 플러렌(C60)인 것을 특징으로 하는 연료전지용 전극 촉매.
- 탄소계 담체;상기 탄소계 담체와 별도의 상을 이루면서 상기 탄소계 담체의 표면의 전부 또는 일부를 코팅하는 탄소층;상기 탄소층의 표면에 분포하는 전이 금속 활성 성분 입자; 및상기 탄소층의 내부에 분포하는 전이금속의 염화물, 질화물, 또는 황산화물, 또는 전이 금속 활성 성분 원자를 포함하는 연료전지용 전극 촉매.
- (a) 탄소계 담체, 전이금속의 염화물, 질화물, 또는 황산화물, 및 전도성 고분자 단량체가 분산매에 분산된 혼합물을 제공하는 단계;(b) 상기 혼합물 중의 단량체를 중합하는 단계; 및(c) 상기 전이금속의 염화물, 질화물, 또는 황산화물을 환원하는 단계를 포함하는 연료전지용 전극 촉매의 제조 방법.
- 제 9 항에 있어서, 상기 탄소계 담체, 전이금속의 염화물, 질화물, 또는 황산화물, 및 전도성 고분자 단량체의 전체 중량을 기준으로 상기 탄소계 담체의 함량이 1 중량% 내지 60 중량%, 상기 전이금속의 염화물, 질화물, 또는 황산화물의 함량이 20 중량% 내지 90 중량%, 상기 전도성 고분자 단량체의 함량이 10 중량% 내지 60 중량%인 것을 특징으로 하는 연료전지용 전극 촉매의 제조 방법.
- 제 9 항에 있어서, 상기 전이금속의 염화물, 질화물, 또는 황산화물의 농도가 상기 전도성 고분자 단량체 농도의 1/4배 내지 2배인 것을 특징으로 하는 연료전지용 전극 촉매의 제조 방법.
- 제 9 항에 있어서, 상기 중합이 1 ℃ 내지 30 ℃의 온도에서 수행되는 것을 특징으로 하는 연료전지용 전극 촉매의 제조 방법.
- 제 9 항에 있어서, 상기 중합이 1 ℃ 내지 6 ℃의 온도에서 수행되는 것을 특징으로 하는 연료전지용 전극 촉매의 제조 방법.
- 제 9 항에 있어서, 상기 (a) 단계의 혼합물이 계면활성제를 더 포함하는 것을 특징으로 하는 연료전지용 전극 촉매의 제조 방법.
- 제 14 항에 있어서, 상기 계면활성제가 알라닌계, 이미다졸륨베타인계, 아미노디프로피온염 또는 알킬아릴폴리에테르알코올계 화합물인 것을 특징으로 하는 연료전지용 전극 촉매의 제조 방법.
- 제 9 항에 있어서, 상기 (c) 단계의 환원이 수소 분위기의 100 ℃ 내지 1000 ℃의 온도에서 수행되는 것을 특징으로 하는 연료전지용 전극 촉매의 제조 방법.
- 제 9 항에 있어서, 상기 (c) 단계의 결과물을 열처리하는 단계를 더 포함하는 것을 특징으로 하는 연료전지용 전극 촉매의 제조 방법.
- 제 17 항에 있어서, 상기 열처리가 300 ℃ 내지 1000 ℃의 온도에서 수행되는 것을 특징으로 하는 연료전지용 전극 촉매의 제조 방법.
- 제 1 항 내지 제 8 항 중의 어느 한 항에 따른 연료전지용 전극 촉매를 포함하는 연료전지용 전극.
- 촉매층과 확산층을 포함하는 캐소드; 촉매층과 확산층을 포함하는 애노드; 및 상기 캐소드 및 상기 애노드 사이에 위치하는 전해질막을 포함하는 막전극 접합체에 있어서, 상기 캐소드 또는 애노드가 제 1 항 내지 제 8 항 중의 어느 한 항에 따른 연료전지용 전극 촉매를 포함하는 것을 특징으로 하는 막전극 접합체.
- 촉매층과 확산층을 포함하는 캐소드; 촉매층과 확산층을 포함하는 애노드; 및 상기 캐소드 및 상기 애노드 사이에 위치하는 전해질막을 포함하는 연료 전지에 있어서, 상기 애노드 또는 캐소드가 제 1 항 내지 제 8 항 중의 어느 한 항에 따른 연료전지용 전극 촉매를 포함하는 것을 특징으로 하는 연료 전지.
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PCT/KR2006/004971 WO2007061248A1 (en) | 2005-11-25 | 2006-11-24 | Catalyst for fuel cell electrode and method of preparing the same |
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KR101305439B1 (ko) * | 2010-07-30 | 2013-09-06 | 연세대학교 산학협력단 | 고분자 전해질 연료전지용 비백금 산소환원 촉매 및 이의 제조방법 |
KR101153746B1 (ko) * | 2010-10-04 | 2012-06-13 | 부산대학교 산학협력단 | 커패시터 전극 물질을 위한 폴리아닐린/활성탄 복합재료의 제조방법 |
US9276270B2 (en) | 2010-11-26 | 2016-03-01 | Hyundai Motor Company | Preparing an alloy catalyst using conductive polymer coating |
KR20160049428A (ko) * | 2014-10-27 | 2016-05-09 | 숭실대학교산학협력단 | 전이금속과 질소가 도핑된 다공성 카본 촉매 제조방법 |
KR101652626B1 (ko) | 2014-10-27 | 2016-08-31 | 숭실대학교산학협력단 | 전이금속과 질소가 도핑된 다공성 카본 촉매 제조방법 |
KR101680100B1 (ko) | 2015-05-21 | 2016-11-28 | 전북대학교 산학협력단 | 전이금속산화물과 탄소소재를 포함하는 귀금속 전기촉매 및 이의 제조방법 |
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