BRPI0605696E2 - processo de funcionalizaÇço de fontes de carbono pela formaÇço em sua superfÍcie de grupos funcionais oxigenados para aplicaÇço como suporte de eletrocatalisadores em cÉlulas À combustÍvel do tipo membrana trocadora de protàns - Google Patents

processo de funcionalizaÇço de fontes de carbono pela formaÇço em sua superfÍcie de grupos funcionais oxigenados para aplicaÇço como suporte de eletrocatalisadores em cÉlulas À combustÍvel do tipo membrana trocadora de protàns

Info

Publication number
BRPI0605696E2
BRPI0605696E2 BRC10605696-2A BRPI0605696A BRPI0605696E2 BR PI0605696 E2 BRPI0605696 E2 BR PI0605696E2 BR PI0605696 A BRPI0605696 A BR PI0605696A BR PI0605696 E2 BRPI0605696 E2 BR PI0605696E2
Authority
BR
Brazil
Prior art keywords
carbon source
functionalization
support
groups
nanoparticles
Prior art date
Application number
BRC10605696-2A
Other languages
English (en)
Inventor
Carmo Marcelo Do
Poco Joao Guilherme Rocha
Marcelo Linardi
Original Assignee
Inst Pesquisas Tech
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Inst Pesquisas Tech filed Critical Inst Pesquisas Tech
Priority to BRC10605696-2A priority Critical patent/BRPI0605696E2/pt
Priority to PCT/BR2007/000354 priority patent/WO2008074113A1/en
Publication of BRPI0605696A publication Critical patent/BRPI0605696A/pt
Publication of BRPI0605696E2 publication Critical patent/BRPI0605696E2/pt

Links

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
    • 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
    • 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
    • H01M8/1004—Fuel cells with solid electrolytes characterised by membrane-electrode assemblies [MEA]
    • 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

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • General Chemical & Material Sciences (AREA)
  • Electrochemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Sustainable Energy (AREA)
  • Sustainable Development (AREA)
  • Manufacturing & Machinery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Fuel Cell (AREA)
  • Inert Electrodes (AREA)
  • Catalysts (AREA)

Abstract

PROCESSO DE FUNCIONALIZAÇçO DE FONTES DE CARBONO PELA FORMAÇçO EM SUA SUPERFICIE DE GRUPOS FUNCIONAIS OXIGENADOS PARA APLICAÇçO COMO SUPORTE DE ELETROCATALISADORES EM CÉLULAS À COMBUSTÍVEL DO TIPO MEMBRANA TROCADORA DE PRàTONS. Pertencente ao setor de eletrocatalisadores para células a combustível do tipo eletrólito polimérico sólido, diz respeito a uma forma de funcionalização da superfície micro nanoscópica da fonte de carbono por meio de reações químicas, realizando o crescimento de grupos carboxilicos - COOH e/ou grupos álcoois -OH na superfície da fonte de carbono, seguida de filtragem, lavagem do material para eliminação do excesso de agente oxidante ou reagido com impurezas, e finalmente secagem. Em seguida, se realiza a ancoragem das nano partículas de metais e ligas metálicas, do tipo Pt e PtRu e outras, utilizando qualquer método do estado da técnica para preparação dos catalisadores dispersos. A invenção elimina impurezas da superfície da fonte de carbono e, consequentemente, melhora a condutividade elétrica do material e contribui também para uma distribuição mais homogênea das nanoparticulas metálicas no suporte devido à formação de grupos do tipo carboxilas, hidroxilas, cetonas e éteres na superfície da fonte de carbono, os quais, por efeito alostérico, fazem com que as nanopartículas se depositem de uma forma mais homogênea em sua superfície, melhora a atividade catalítica do material, e também diminui a probabilidade de ocorrer sinterização das nanoparticulas, ou seja, diminuindo o envelhecimento do catalisador.
BRC10605696-2A 2006-12-19 2006-12-19 processo de funcionalizaÇço de fontes de carbono pela formaÇço em sua superfÍcie de grupos funcionais oxigenados para aplicaÇço como suporte de eletrocatalisadores em cÉlulas À combustÍvel do tipo membrana trocadora de protàns BRPI0605696E2 (pt)

Priority Applications (2)

Application Number Priority Date Filing Date Title
BRC10605696-2A BRPI0605696E2 (pt) 2006-12-19 2006-12-19 processo de funcionalizaÇço de fontes de carbono pela formaÇço em sua superfÍcie de grupos funcionais oxigenados para aplicaÇço como suporte de eletrocatalisadores em cÉlulas À combustÍvel do tipo membrana trocadora de protàns
PCT/BR2007/000354 WO2008074113A1 (en) 2006-12-19 2007-12-19 Process of carbons functionalization by the growth of polymeric chains with ion exchange properties for polymer electrolyte fuel cell applications

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BRC10605696-2A BRPI0605696E2 (pt) 2006-12-19 2006-12-19 processo de funcionalizaÇço de fontes de carbono pela formaÇço em sua superfÍcie de grupos funcionais oxigenados para aplicaÇço como suporte de eletrocatalisadores em cÉlulas À combustÍvel do tipo membrana trocadora de protàns

Publications (2)

Publication Number Publication Date
BRPI0605696A BRPI0605696A (pt) 2008-08-12
BRPI0605696E2 true BRPI0605696E2 (pt) 2008-11-25

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
BRC10605696-2A BRPI0605696E2 (pt) 2006-12-19 2006-12-19 processo de funcionalizaÇço de fontes de carbono pela formaÇço em sua superfÍcie de grupos funcionais oxigenados para aplicaÇço como suporte de eletrocatalisadores em cÉlulas À combustÍvel do tipo membrana trocadora de protàns

Country Status (2)

Country Link
BR (1) BRPI0605696E2 (pt)
WO (1) WO2008074113A1 (pt)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102719075A (zh) * 2012-07-03 2012-10-10 上海锦湖日丽塑料有限公司 耐候聚碳酸酯组合物的制备方法
CN114914463B (zh) * 2021-02-08 2023-11-07 中国科学院大连化学物理研究所 一种高负载量高分散铂碳催化剂及其氨基配体制备方法
CN116477722B (zh) * 2023-05-10 2025-09-19 南昌航空大学 一种利用碳纳米管活化重铬酸钾经电子转移机制去除水中抗生素的方法
CN118956023B (zh) * 2024-10-12 2025-01-07 泉州市足康生物科技有限公司 一种导电橡胶发泡材料及其制备方法

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JPS58142942A (ja) * 1982-02-19 1983-08-25 Central Glass Co Ltd ポリマ−被覆フッ化黒鉛の製造方法
JPS63191864A (ja) * 1987-02-04 1988-08-09 Fuji Xerox Co Ltd 表面処理顔料の製造方法
CA2000649A1 (en) * 1988-10-17 1990-04-17 Tsuyoshi Inoue Electrocoating composition
US6426134B1 (en) * 1998-06-30 2002-07-30 E. I. Du Pont De Nemours And Company Single-wall carbon nanotube-polymer composites
DE10038124B4 (de) * 2000-08-04 2006-05-11 Infineon Technologies Ag Verwendung einer mehrwandigen Nanoröhre auf einem Substrat und als elektronisches Bauelement
JP2005342937A (ja) * 2004-06-01 2005-12-15 National Printing Bureau 印刷機用ローラ及びその製造方法

Also Published As

Publication number Publication date
WO2008074113A1 (en) 2008-06-26
BRPI0605696A (pt) 2008-08-12

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