MX9706503A - Gas difusion electrodes based on polyethersulfone carbon blends. - Google Patents

Gas difusion electrodes based on polyethersulfone carbon blends.

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
Application number
MX9706503A
Other languages
Spanish (es)
Other versions
MXPA97006503A (en
Inventor
Israel Cabasso
Youxin Yuan
Xiao Xu
Original Assignee
Univ New York
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 Univ New York filed Critical Univ New York
Publication of MX9706503A publication Critical patent/MX9706503A/en
Publication of MXPA97006503A publication Critical patent/MXPA97006503A/en

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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)
  • Fuel Cell (AREA)
  • Electrodes For Compound Or Non-Metal Manufacture (AREA)

Abstract

All electrocatalytic gas diffusion electrode for fuel cells and a process for its preparation is disclosed. The electrode comprises an anistropic gas diffusion layer and a catalytic layer. The gas diffusion layer is made of a porous carbon matrix through which carbon particles and polyethersulfone are distributed so that the matrix is homogeneously porous in a direction lateral to gas flow and asymmetrically porous to gases in the direction of the gas flow. The porosity of the gas diffusion layer decreases in the direction of gas flow. The catalytic layer is made of a coagulated ink suspension containing catalytic carbon particles and a thermoplastic polymer selected from polyethersulfone, poly(vinylidene fluoride) and sulfonated polysusulfone and covers the small pore surface of the gas diffusion layer. The gas diffusion layer has a thickness between 50 (m and (m. The catalytic layer has thickness between 7 (m and 50 (m and a metal catalyst loading between 0.2/cm2 and 0.5 mg/cm2.
MXPA/A/1997/006503A 1996-08-27 1997-08-26 Gas diffusion electrodes based on polyetersulphone mixtures with carb MXPA97006503A (en)

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 (en) 1998-05-31
MXPA97006503A MXPA97006503A (en) 1998-10-23

Family

ID=

Also Published As

Publication number Publication date
JPH1092439A (en) 1998-04-10
IT1293986B1 (en) 1999-03-15
ID19345A (en) 1998-07-02
GB2316802B (en) 1999-07-14
BR9704215A (en) 1999-01-19
GB2316802A (en) 1998-03-04
ITTO970759A1 (en) 1999-02-26
GB9718153D0 (en) 1997-10-29
DE19737389A1 (en) 1998-03-12
CA2213967A1 (en) 1998-02-27
FR2755542A1 (en) 1998-05-07
TW404079B (en) 2000-09-01

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