Catalytic powder and electrode made therewith
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United States of America Patent
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Dec 6, 2005
Grant Date -
N/A
app pub date -
Oct 13, 2000
filing date -
Oct 20, 1999
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A catalytic powder comprising a plurality of support metal particles with a porous coating (12) surrounding the metal particles (11), the porous coating comprising either an electrocatalytic metal or an electrocatalytic metal continuous phase in admixture with a particulate material (14). An electrode made with the catalytic powder and a method to make the electrode is also disclosed. The present invention is advantageous because the porous coating mixture is first applied to a powder rather than being applied directly to a metal substrate, thereby creating a large internal surface area on the electrode and accordingly, lower overpotential requirements.
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