Cobalt Containing Bimetallic Zero PGM Catalyst for TWC Applications
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United States of America Patent
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Issued Date -
May 19, 2016
app pub date -
Nov 17, 2014
filing date -
Nov 17, 2014
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Abandoned
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Abstract
Variations of bulk powder catalyst material including Cu—Co, Fe—Co, and Co—Mn spinel systems for ZPGM TWC applications are disclosed. The disclosed bulk powder catalyst samples include stoichiometric and non-stoichiometric Cu—Co, Fe—Co, and Co—Mn spinels on Pr6O11—ZrO2 support oxide, prepared using incipient wetness method. Activity measurements under isothermal steady state sweep test condition may be performed rich to lean condition. Catalytic activity of bulk powder samples may be compared to analyze the influence that different bimetallic spinel compositions may have on TWC performance, including ZPGM materials for a plurality of TWC applications. Stoichiometric Cu—Co, Fe—Co, and Co—Mn spinel systems exhibit higher catalytic activity than non-stoichiometric Cu—Co, Fe—Co, and Co—Mn spinel systems. The influence of stoichiometric Cu—Co, Fe—Co, and Co—Mn spinel systems may lead into cost effective manufacturing solutions for ZPGM TWC systems.
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