Methods of manufacturing fuel cell electrodes incorporating highly dispersed nanoparticle catalysts
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United States of America Patent
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Feb 22, 2011
Grant Date -
Mar 15, 2007
app pub date -
Nov 1, 2005
filing date -
Sep 15, 2005
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Abstract
Nanoparticle catalysts are manufactured by first preparing a solution of a solvent and a plurality of complexed catalyst atoms. Each of the complexed catalyst atoms has at least three organic ligands. The complexed catalyst atoms are reduced to form a plurality of nanoparticles. During formation of the nanoparticles, the organic ligands provide spacing between the catalyst atoms via steric hindrances and/or provide interactions with a support material. The spacing and interactions with the support material allow formation of small, stable, and uniform nanoparticles. The supported nanoparticle catalyst is then incorporated into a fuel cell electrode.
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