ZPGM CATALYST INCLUDING CO-MN-FE AND CU-MN-FE MATERIALS

摘要

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 (CoxFe2Mn2z)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.