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Title: 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:
 [1];  [1];  [1];  [1];  [2]
  1. Los Alamos, NM
  2. Vancouver, CA
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1007498
Patent Number(s):
6,696,382
Application Number:
09/715,211
Assignee:
The Regents of the University of California (Los Alamos, CA)
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. 2004. "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 = {},
url = {https://www.osti.gov/biblio/1007498}, journal = {},
number = ,
volume = ,
place = {United States},
year = {2004},
month = {2}
}