MX9706503A - Electrodos de difusion de gas a base de mezclas de polietersulfona con carbono. - Google Patents
Electrodos de difusion de gas a base de mezclas de polietersulfona con carbono.Info
- Publication number
- MX9706503A MX9706503A MX9706503A MX9706503A MX9706503A MX 9706503 A MX9706503 A MX 9706503A MX 9706503 A MX9706503 A MX 9706503A MX 9706503 A MX9706503 A MX 9706503A MX 9706503 A MX9706503 A MX 9706503A
- Authority
- MX
- Mexico
- Prior art keywords
- gas diffusion
- diffusion layer
- gas
- polyethersulfone
- layer
- Prior art date
Links
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title abstract 4
- 229910052799 carbon Inorganic materials 0.000 title abstract 4
- 239000004695 Polyether sulfone Substances 0.000 title abstract 3
- 229920006393 polyether sulfone Polymers 0.000 title abstract 3
- 239000000203 mixture Substances 0.000 title 1
- 239000007789 gas Substances 0.000 abstract 10
- 238000009792 diffusion process Methods 0.000 abstract 6
- 230000003197 catalytic effect Effects 0.000 abstract 4
- 239000011159 matrix material Substances 0.000 abstract 2
- 239000002245 particle Substances 0.000 abstract 2
- -1 poly(vinylidene fluoride) Polymers 0.000 abstract 2
- 239000003054 catalyst Substances 0.000 abstract 1
- 230000007423 decrease Effects 0.000 abstract 1
- 239000000446 fuel Substances 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 abstract 1
- 239000011148 porous material Substances 0.000 abstract 1
- 238000002360 preparation method Methods 0.000 abstract 1
- 239000000725 suspension Substances 0.000 abstract 1
- 229920001169 thermoplastic Polymers 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
- H01M4/8605—Porous electrodes
-
- 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)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Inert Electrodes (AREA)
- Electrodes For Compound Or Non-Metal Manufacture (AREA)
- Fuel Cell (AREA)
Abstract
Se describen electrodos de difusion de gas electrocatalítico para células energética y un procedimiento para su preparacion. El electrodo comprende una capa de difusion de gas anisotropica y una capa catalítica. La capa de difusion de gas se hace de una matriz de carbono porosa a través de la cual se distribuyen partículas de carbono y poliétersulfona, de manera que la matriz es homogéneamente porosa en una direccion lateral al flujo de gas y asimétricamente porosa a los gases en la direccion del flujo de gas. La porosidad de la capa de difusion de gas se reduce en la direccion del flujo de gas. La capa catalítica se hace de una suspension de tinta coagulada que contiene partículas de carbono catalítico y un polímero termoplástico seleccionado de poliétersulfona, fluoruro de poli (vinilideno) polisulfona sulfonada y cubre la superficie de poro pequeño de la capa de difusion de gas. La capa de difusion de gas tiene un espesor de entre 50 æm y 300 æm. la capa catalítica tiene un espesor de entre 50 æm y 300 æm. La capa catalítica tiene un espesor de entre 7 æm y 50 æm y una carga de catalizador de entre 0.2 mg/cm² y 0.5 mg/cm².
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US697583 | 1991-05-09 | ||
| US69758396A | 1996-08-27 | 1996-08-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| MX9706503A true MX9706503A (es) | 1998-05-31 |
| MXPA97006503A MXPA97006503A (es) | 1998-10-23 |
Family
ID=
Also Published As
| Publication number | Publication date |
|---|---|
| ITTO970759A1 (it) | 1999-02-26 |
| CA2213967A1 (en) | 1998-02-27 |
| GB9718153D0 (en) | 1997-10-29 |
| TW404079B (en) | 2000-09-01 |
| IT1293986B1 (it) | 1999-03-15 |
| JPH1092439A (ja) | 1998-04-10 |
| BR9704215A (pt) | 1999-01-19 |
| FR2755542A1 (fr) | 1998-05-07 |
| ID19345A (id) | 1998-07-02 |
| DE19737389A1 (de) | 1998-03-12 |
| GB2316802B (en) | 1999-07-14 |
| GB2316802A (en) | 1998-03-04 |
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| MX9706503A (es) | Electrodos de difusion de gas a base de mezclas de polietersulfona con carbono. | |
| MX9706504A (es) | Electrodos de difusion de gas a base de mezclas de fluoruro de poli(vinilideno) de carbono. | |
| JPH07176310A (ja) | 電極及びその電極とイオン交換膜との接合体 |