Catalyst inks and method of application for direct methanol fuel cells
Abstract
Inks are formulated for forming anode and cathode catalyst layers and applied to anode and cathode sides of a membrane for a direct methanol fuel cell. The inks comprise a Pt catalyst for the cathode and a Pt--Ru catalyst for the anode, purified water in an amount 4 to 20 times that of the catalyst by weight, and a perfluorosulfonic acid ionomer in an amount effective to provide an ionomer content in the anode and cathode surfaces of 20% to 80% by volume. The inks are prepared in a two-step process while cooling and agitating the solutions. The final solution is placed in a cooler and continuously agitated while spraying the solution over the anode or cathode surface of the membrane as determined by the catalyst content.
- Inventors:
-
- Los Alamos, NM
- Vancouver, CA
- Issue Date:
- Research Org.:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1007498
- Patent Number(s):
- 6696382
- Application Number:
- 09/715,211
- Assignee:
- The Regents of the University of California (Los Alamos, CA)
- Patent Classifications (CPCs):
-
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
Y - NEW / CROSS SECTIONAL TECHNOLOGIES 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
- DOE Contract Number:
- W-7405-ENG-36
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
Citation Formats
Zelenay, Piotr, Davey, John, Ren, Xiaoming, Gottesfeld, Shimshon, and Thomas, Sharon C. Catalyst inks and method of application for direct methanol fuel cells. United States: N. p., 2004.
Web.
Zelenay, Piotr, Davey, John, Ren, Xiaoming, Gottesfeld, Shimshon, & Thomas, Sharon C. Catalyst inks and method of application for direct methanol fuel cells. United States.
Zelenay, Piotr, Davey, John, Ren, Xiaoming, Gottesfeld, Shimshon, and Thomas, Sharon C. Tue .
"Catalyst inks and method of application for direct methanol fuel cells". United States. https://www.osti.gov/servlets/purl/1007498.
@article{osti_1007498,
title = {Catalyst inks and method of application for direct methanol fuel cells},
author = {Zelenay, Piotr and Davey, John and Ren, Xiaoming and Gottesfeld, Shimshon and Thomas, Sharon C},
abstractNote = {Inks are formulated for forming anode and cathode catalyst layers and applied to anode and cathode sides of a membrane for a direct methanol fuel cell. The inks comprise a Pt catalyst for the cathode and a Pt--Ru catalyst for the anode, purified water in an amount 4 to 20 times that of the catalyst by weight, and a perfluorosulfonic acid ionomer in an amount effective to provide an ionomer content in the anode and cathode surfaces of 20% to 80% by volume. The inks are prepared in a two-step process while cooling and agitating the solutions. The final solution is placed in a cooler and continuously agitated while spraying the solution over the anode or cathode surface of the membrane as determined by the catalyst content.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2004},
month = {2}
}
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