Rapid synthesis of fuel cell catalyst using controlled microwave heating
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United States of America Patent
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Nov 29, 2016
Grant Date -
Jan 9, 2014
app pub date -
Sep 16, 2013
filing date -
Jun 29, 2012
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Abstract
Methods for the rapid synthesis of catalyst are provided, as well as catalyst formed from such methods. One method of the rapid synthesis of catalyst comprises forming a homogenous solution comprising a precious metal precursor and a catalyst substrate, reducing the precious metal precursor to precious metal nanoparticles, and depositing the precious metal nanoparticles onto the catalyst substrate to form catalyst particles. The reducing and depositing steps comprise controlling a rate of increase in temperature of the solution with microwave irradiation until the solution is a predetermined temperature and maintaining the solution at the predetermined temperature with microwave irradiation. The method further comprises detecting completion of the reduction and deposition and ceasing microwave irradiation upon detection.
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