Low-temperature CeCoMnO spinel-type catalysts prepared by oxalate co-precipitation for selective catalytic reduction of NO using NH: A structure-activity relationship study.

CeCoMnO spinel-type catalysts for the selective catalytic reduction of NO using NH (NH-SCR) are usually prepared by alkaline co-precipitation. In this paper, a series of CeCoMnO spinel-type catalysts with different calcination temperatures were prepared by acidic oxalate co-precipitation. The physicochemical structures and NH-SCR activities of the CeCoMnO spinel-type catalysts prepared by oxalate co-precipitation and conventional ammonia co-precipitation were systematically compared.