ZPGM Catalyst Including Co-Mn-Fe and Cu-Mn-Fe Materials for TWC Applications
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United States of America Patent
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Issued Date -
Jun 16, 2016
app pub date -
Dec 11, 2014
filing date -
Dec 11, 2014
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Abandoned
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Abstract
Variations of bulk powder catalyst materials, including a plurality of formulations for stoichiometric and non-stoichiometric Co_Mn—Fe spinel and Cu—Mn—Fe spinel, which may be prepared by incipient wetness method, employing variations of molar ratio and general formulation (CoxFezMn2z)3-δO4, and Co1-xMnxFe2O4 spinel supported on doped ZrO2 support oxide. According to principles in present disclosure, a plurality of formulations for fine grain bulk powder compositions of Cu—Mn—Fe spinel with general formulation of CuxMnyFezO4, may provide solutions for enhanced NOx, CO, and HC conversion performance for TWC applications, employing ZPGM materials for a plurality of TWC applications. Additionally, these types of ternary ZPGM fine grain bulk powder spinel compositions may have a cost effective manufacturing advantage.
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