Potassium-doped Co3O4 catalyst for direct decomposition of N2O

Promotional effects and mechanism of second cations on activity and stability of Co-MOR for nitrous oxide decomposition: UV–Vis spectroscopy and EXAFS analysis

“…Moreover, the N 2 O conversion shifted to higher temperature side over CoK-MOR catalyst, suggesting the inhibition effect of K over the activity of Co-MOR for N 2 O decomposition. This phenomenon is opposite with other findings which have reported that alkali metals like K could promote the activity of a Co 3 O 4 or cobalt-cerium composite oxide catalysts for N 2 O decomposition [25,26]. It is proposed that the redox ability of active site Co 2+ was greatly improved by K, which acts as electronic promoters.…”

An influence of thermal treatment conditions of hydrotalcite-like materials on their catalytic activity in the process of N2O decomposition

“…It was reported that promotion of the various transition metal oxide-based catalysts with alkali metals salts resulted in their activation in the N 2 O decomposition reaction [32]. The influence of potassium addition on the catalytic activity was studied for the hydrotalcite samples calcined at 800°C.…”

A DFT Study of CO Catalytic Oxidation by N2O or O2 on the Co3O4(110) Surface

“…Pure , [17] partially substituted (M x Co 1Àx Co 2 O 4 ; M= Ni, Mg, Zn), [18,19] alkali-doped [20][21][22][23][24] , and supported [25] The perfect, defective, and partially substituted (110) surfaces were modeled using a periodically repeated slab with five layers. The middle layer was fixed and the other four layers were fully relaxed.…”