The improved reactivity of manganese catalysts by Ag in catalytic oxidation of toluene

Selective catalytic oxidation of ammonia to nitrogen over MnO2 prepared by urea-assisted hydrothermal method

“…Fig. 8A showed that the Mn 2p 3/2 XPS spectrum could be deconvoluted to two components at 641.8 eV and 642.8 eV, which were attributed to the surface Mn 3+ and Mn 4+ species [14], respectively. Meanwhile, Fig.…”

Role of the support on the behavior of Ag-based catalysts for NH 3 selective catalytic oxidation (NH 3 -SCO)

“…Ag based catalysts have attracted widespread interest because of their unique properties for a variety of applications, such as the selective catalytic oxidation (SCO) of NH 3 [1], CO oxidation [2,3], catalytic oxidation of toluene [4,5], HCHO oxidation [6], ethylene epoxidation [7,8] and the selective catalytic reduction (SCR) of NO [9]. In low-temperature NH 3 -SCO reaction, Ag based catalyst has been proven to be one of the most active catalysts, but with a poor N 2 selectivity [10][11][12].…”

A high-efficiency γ-MnO2-like catalyst in toluene combustion

“…T 50 and T 90 (the reaction temperatures corresponding to the toluene conversions of 50% and 90%) were used to compare the catalytic activities of the samples. 24 Thus the O latt species play a vital role in catalytic reaction. So the reactive performances of the four MnO 2 samples were better than that of LMO.…”