Unveiling the Remarkable Arsenic Resistance Origin of Alumina Promoted Cerium-Tungsten Catalysts for NH-SCR.

The deactivation of selective catalytic reduction (SCR) catalysts by arsenic is a serious problem for NH-SCR. However, it is tough to design catalysts with good resistance to arsenic compared to other poisons such as alkali metal, SO, etc., because As not only deteriorates surface acidity but also redox property, causing excessive NO generation.

A novel wormhole-like mesoporous hybrid MnCoO catalyst for improved ethanol catalytic oxidation.

A series of wormhole-like mesoporous hybrid MnCoO catalysts have been successfully prepared using a soft template combining the sol-gel method. The physical and chemical properties of these mesostructured materials are systematically characterized using XRD, BET, Raman, XPS, HRTEM, H-TPR and O-TPD and compared with pure MnO and CoO. Their catalytic performances for ethanol oxidation are investigated and carried out on a fixed-bed reactor.