Influence of partial Mn-substitution on surface oxygen species of LaCoO3 catalysts

Catalytic combustion of chlorobenzene over VO /CeO2 catalysts

“…The amount of these oxygen species decreases with V loading and is smaller than the calculated values through the normalization based on O 2 desorption from CeO 2 (Table S1), which denotes main contribution of oxygen adsorption on the CeO 2 matrix, and the addition of V reduces the ability of oxygen adsorption on CeO 2 . For CeO 2 , 0.5V, 0.9V, and 1.4V samples which expose considerable sites of CeO 2 , the peaks located in a range of 300 to 750°C can be ascribed mainly to the desorption of oxygen chemically adsorbed oxygen on the vacancies (O À ) and weak surface lattice oxygen (O 2À ) (bulk lattice oxygen appear at higher temperatures (>750°C)) [50]. The shoulder peaks with maximum at 682°C can be ascribed to the reduction of monomeric VO x and become larger with VO x loading.…”

Influence of Sr Substitution on Catalytic Performance of LaMnO3/Ni Metal foam Composite for CO Oxidation

“…The content levels of the corresponding adsorption oxygen and lattice oxygen are listed in Table 2. Previous studies have reported that the relative ratio of the adsorbed oxygen to lattice oxygen, O adsorbed /O lattice , can be used as an index to evaluate catalytic activity (Hwang et al, 2010;Sun et al, 2011;Liang et al, 2013). As shown in Table 2 (Niu et al, 2006;Wei et al, 2010).…”

Catalytic oxidation of benzene over MnO x /TiO 2 catalysts and the mechanism study

“…In recent years, numerous catalysts have been explored, including noble metals [6][7][8]and transition-metal oxides [9][10][11][12][13][14][15][16][17][18][19]. The noble metal catalysts such as Pd and Pt-based catalysts have attracted increasing attention for their excellent catalytic activities.…”