Promising effect of Ag/Rh paired mesoporous composite-oxide for low temperature NOCO reaction

Abstract

A promising effect of the silver and rhodium binary precious metals added composite oxide was investigated for NO-CO redox reaction. The interaction of Ag and Rh enhanced the catalytic property of the overall composite catalyst which brought to 100% conversion of NO and CO at significantly low temperature of 150 °C. Additionally, mesoporous structure composed of such active nano-particles leads in high oxygen mobility and CO reactivity on catalyst surface, showing a good agreement with catalytic performance. Such catalytic enhancement conveys the transfer of electronic cloud from Ag to Rh which is pointing towards good synergy between active AgRh pairs.

Keywords

• Composite oxide
• NOCO redox conversion
• H2-TPR
• CO-TPD
• Oxygen mobility