BRPI0605696A - processo de funcionalização de fontes de carbono pelo crescimento em sua superfìcie de cadeias poliméricas condutoras de ìons para aplicação em células à combustìvel do tipo membrana trocadora de protons - Google Patents
processo de funcionalização de fontes de carbono pelo crescimento em sua superfìcie de cadeias poliméricas condutoras de ìons para aplicação em células à combustìvel do tipo membrana trocadora de protonsInfo
- Publication number
- BRPI0605696A BRPI0605696A BRPI0605696-2A BRPI0605696A BRPI0605696A BR PI0605696 A BRPI0605696 A BR PI0605696A BR PI0605696 A BRPI0605696 A BR PI0605696A BR PI0605696 A BRPI0605696 A BR PI0605696A
- Authority
- BR
- Brazil
- Prior art keywords
- reaction
- carbon source
- sym
- growth
- proton
- Prior art date
Links
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title abstract 8
- 229910052799 carbon Inorganic materials 0.000 title abstract 8
- 239000012528 membrane Substances 0.000 title abstract 4
- 238000000034 method Methods 0.000 title abstract 4
- 229920001940 conductive polymer Polymers 0.000 title abstract 3
- 239000000446 fuel Substances 0.000 title abstract 3
- 238000007306 functionalization reaction Methods 0.000 title abstract 2
- 239000000463 material Substances 0.000 abstract 10
- 238000006243 chemical reaction Methods 0.000 abstract 6
- 229920000642 polymer Polymers 0.000 abstract 4
- 238000001035 drying Methods 0.000 abstract 3
- 230000008030 elimination Effects 0.000 abstract 3
- 238000003379 elimination reaction Methods 0.000 abstract 3
- 238000001914 filtration Methods 0.000 abstract 3
- 239000000203 mixture Substances 0.000 abstract 3
- 238000005406 washing Methods 0.000 abstract 3
- VHYFNPMBLIVWCW-UHFFFAOYSA-N 4-Dimethylaminopyridine Chemical compound CN(C)C1=CC=NC=C1 VHYFNPMBLIVWCW-UHFFFAOYSA-N 0.000 abstract 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 2
- 239000002253 acid Substances 0.000 abstract 2
- 239000003054 catalyst Substances 0.000 abstract 2
- 239000003795 chemical substances by application Substances 0.000 abstract 2
- 230000003247 decreasing effect Effects 0.000 abstract 2
- 239000007800 oxidant agent Substances 0.000 abstract 2
- FYSNRJHAOHDILO-UHFFFAOYSA-N thionyl chloride Chemical compound ClS(Cl)=O FYSNRJHAOHDILO-UHFFFAOYSA-N 0.000 abstract 2
- 229960000549 4-dimethylaminophenol Drugs 0.000 abstract 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 abstract 1
- 229910002849 PtRu Inorganic materials 0.000 abstract 1
- 150000007513 acids Chemical class 0.000 abstract 1
- 230000003213 activating effect Effects 0.000 abstract 1
- 230000004913 activation Effects 0.000 abstract 1
- 230000032683 aging Effects 0.000 abstract 1
- 150000001298 alcohols Chemical class 0.000 abstract 1
- 229910045601 alloy Inorganic materials 0.000 abstract 1
- 239000000956 alloy Substances 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 239000006229 carbon black Substances 0.000 abstract 1
- 238000006555 catalytic reaction Methods 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 abstract 1
- 239000004020 conductor Substances 0.000 abstract 1
- 239000010411 electrocatalyst Substances 0.000 abstract 1
- 150000002170 ethers Chemical class 0.000 abstract 1
- 239000003999 initiator Substances 0.000 abstract 1
- 150000002576 ketones Chemical class 0.000 abstract 1
- 239000002082 metal nanoparticle Substances 0.000 abstract 1
- 239000000178 monomer Substances 0.000 abstract 1
- 239000002105 nanoparticle Substances 0.000 abstract 1
- 230000007935 neutral effect Effects 0.000 abstract 1
- 229910017604 nitric acid Inorganic materials 0.000 abstract 1
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 abstract 1
- 239000005518 polymer electrolyte Substances 0.000 abstract 1
- 239000003505 polymerization initiator Substances 0.000 abstract 1
- 150000003839 salts Chemical class 0.000 abstract 1
- 238000005245 sintering Methods 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
- 239000002904 solvent Substances 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 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
-
- 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 FUNCIONALIZAçãO DE FONTES DE CARBONO PELO CRESCIMENTO EM SUA SUPERFìCIE DE CADEIAS POLIMéRICAS CONDUTORAS DE ìONS PARA APLICAçãO EM CéLULAS à COMBUSTìVEL DO TIPO MEMBRANA TROCADORA DE PROTONS. Pertencente ao setor de eletrocatalisadores para células a combustível do tipo eletrólito polimérico sólido, diz respeito a uma forma de ativação química da superfície micro nanoscópica de uma fonte de carbono, preferencialmente negro de fumo, e gerando o crescimento de cadeias poliméricas condutoras de prótons na superfície da fonte de carbono, para realizar a ancoragem das nanopartículas de metais e ligas metálicas, do tipo Pt e PtRu e outras, utilizando qualquer método do estado da técnica para preparação dos catalisadores dispersos e criação ou enxerto das cadeias poliméricas condutoras de prótons crescidas a partir da superfície. O processo consiste em 5 etapas: <sym> Etapa 1 - Reação do uma fonte de carbono com agentes oxidantes visando a formação de grupos carboxílicos, álcoois, cetonas, éteres e outros na superfície do uma fonte de carbono e filtragem, lavagem e secagem do material com água para eliminação do agente oxidante até pH neutro e até eliminação dos sais e outros compostos formados. <sym> Etapa 2 - Reação do material obtido na Etapa 1 com cloreto de tionila, DMAP ou qualquer agente ativador de reação ou suas misturas, seguida da sua eliminação e seu solvente restantes e da secagem do material obtido. <sym> Etapa 3 - Reação do material obtido na Etapa 2 com o agente iniciador ácido 4,4 azobiscianovalérico ou qualquer agente AZO ou agente iniciador de polimerização ou suas misturas, e filtragem, lavagem e secagem do material obtido. <sym> Etapa 4 - Reação do material obtido na Etapa 3 com o monómero dos respectivos polímeros para crescimento das cadeias do polímero na superfície da fonte de carbono. <sym> Etapa 5 - Reação do material obtido na Etapa 4 com ácido sulfúrico, ou ácido nítrico, ou outros ácidos, ou suas misturas, para tornar o polímero um condutor de prótons e filtragem, lavagem e checagem do material obtido. A invenção melhora a condutividade iónica do material pela melhora dos processos de transferência nas interfaces de uma célula tipo PEM (interfaces Pt-C, Pt - Membrana e C-Membrana), conseqüentemente melhorado a catálise do material e também diminuindo a probabilidade de ocorrer sinterização das nano partículas, ou seja, diminuindo o envelhecimento do catalisador.
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 true BRPI0605696A (pt) | 2008-08-12 |
| BRPI0605696E2 BRPI0605696E2 (pt) | 2008-11-25 |
Family
ID=39535913
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)
| 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 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2006
- 2006-12-19 BR BRC10605696-2A patent/BRPI0605696E2/pt not_active Application Discontinuation
-
2007
- 2007-12-19 WO PCT/BR2007/000354 patent/WO2008074113A1/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| WO2008074113A1 (en) | 2008-06-26 |
| BRPI0605696E2 (pt) | 2008-11-25 |
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