Method and system for preparation of highly porous and preferentially-oriented {100} platinum nanowires and thin films
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United States of America Patent
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Aug 18, 2015
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Sep 20, 2012
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Mar 15, 2012
filing date -
Mar 15, 2011
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Abstract
A method for preparation of highly porous and preferentially-oriented {100} platinum on a substrate by electrodeposition in a deposition bath, comprising using a deposition potential Edep lower than ERHE+150 mV and an acidified platinum salt solution having a Pt salt concentration less than 5.0 mmole L−1 or, in presence of hydrogen, comprising limiting the concentration of Pt salts in the electrolyte to less than 5.0 mmole L−1 and controlling the temperature of the electrolyte. Preferentially-oriented {100} platinum nanowires and thin films, comprising Pt{100} in a range between about 20 and about 60% and having a roughness factor of at least 50 are produced.
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