Low-Temperature Selective NO Reduction by CO over Copper-Manganese Oxide Spinels

نویسندگان

چکیده

Selective catalytic reduction of NO with CO (CO-SCR) has been suggested as an attractive and promising technology for removing simultaneously from flue gas. Manganese-copper spinels are a CO−SCR material because the high stability redox properties spinel structure. Here, we synthesized CuxMn3−xO4 by citrate-based modified pechini method combining CuO MnOx, controlling molar Cu/Mn concentrations. All samples were characterized SEM, EDX, XRD, TEM, H2−TPR, XPS nitrogen adsorption measurements. The Cu1.5Mn1.5O4 catalyst exhibits 100% conversion 53.3% at 200 °C. Cu-O-Mn structure content valence Mn, mass transfer characteristics foam-like together promoted reaction performance. CO-SCR performance Cu was related to ratio Mn4+/Mn, synergistic effect between two kinds metal oxides multistage porous

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ژورنال

عنوان ژورنال: Catalysts

سال: 2022

ISSN: ['2073-4344']

DOI: https://doi.org/10.3390/catal12060591