Carburized 3-1 nickel-silver preparation exhibits considerable catalytic activity, although not as high as platinum black. Cost and availability factors warrant further evaluation of nickel-silver materials

Magerl, J. A.

Murray, J. N.

English

NASA Technical Reports Server

June 1970
	 Brief 70-10035 
.
NASA TECH BRIEF H 
NASA Tech Briefs announce new technology derived from the U.S. space program. They are issued to encourage commercial 
application. Tech Briefs are available on a subscription basis from the Clearinghouse for Federal Scientific and Technical 
Information, Springfield, Virginia 22151. Requests for individual copies or questions relating to the Tech Brief program may 
be directed to the Technology Utilization Division, NASA, Code UT, Washington; D.C. 20546. 
Nickel-Silver Composition Shows Promise as Catalyst for H2-02 Fuel Cells 
In a continuing program of testing selected ma-
terials as catalysts for anodic oxidation of hydrogen 
in alkaline hydrogen-oxygen fuel cells, a carburized 
3:1 Ni-Ag preparation was found to exhibit consider-
able catalytic activity. The uncarburized 3:1 Ni-Ag 
material showed only slightly less catalytic activity. 
The catalytic activity of the Ni-Ag materials tested, 
however, is not as high as that of the more costly and 
scarcer platinum black normally used in H 2 -0 2 fuel 
cells. 
Since low cost and ready availability of catalytic 
materials are important factors in the development 
of H 2 -0 2 fuel cells for commercial use, further evalua-
tion of the Ni-Ag materials with regard to various 
other properties (e.g., chemical and structural stabil-
ity, long-term activity, and sensitivity to poisoning) 
would be warranted.
Note: 
Requests for further information may be directed to 
Technology Utilization Officer 
Headquarters 
National Aeronautics 
and Space Administration 
Washington, D.C. 20546 
Reference: TSP70-10035 
Patent status: 
Inquiries about obtaining rights for the commercial 
use of this invention may be made to NASA, Code 
GP, Washington, D.C. 20546. 
Source: J. A. Magerl and J. N. Murray of 
- Allis-Chalmers Research Division 
under contract to
NASA Headquarters
(HQN- 10565) 
Category 01 
This document was prepared under the sponsorship of the National 
Aeronautics and Space Administration. Neither the United States 
Government nor any person acting on behalf of the United States
Government assumes any liability resulting from the use of the 
information contained in this document, or warrants that such use 
will be free from privately owned rights.
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Nickel-silver composition shows promise as catalyst for hydrogen-oxygen fuel cells

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