Additive-free vapour-phase hydrogenation of benzonitrile over MgO-supported Ni catalysts

3D porous flower-like CoAl2O4 to boost the photocatalytic CO2 reduction reaction

“…[55][56][57] The desorption peaks in the temperature range of ∼200 °C and 200-500 °C indicate that the CoAl catalysts have weakly and moderately basic sites. 58 Meanwhile, the CO 2 molecules adsorbed on weakly basic and moderately basic sites are converted to species such as active carbonates and further reduced to CH 4 . 59 The peak areas of the weakly basic and moderate sites for CoAl-750 are greater than those of other CoAl catalysts, illustrating that the CO 2 adsorption capacity of CoAl-750 is better than that of other catalysts, demonstrating that CoAl-750 has more abundant active sites, 60,61 which is one of the reasons why the photocatalytic capacity of CoAl-750 is better than that of other catalysts.…”

Solution combustion synthesis of Ni/La2O3 for dry reforming of methane: tuning the basicity via alkali and alkaline earth metal oxide promoters

“…The desorption peaks below 400 C can be attributed to weakly basic sites, the peaks 400-600 C are assigned to basic sites of moderate strength, and the at temperatures higher than 600 C corresponds to strong basic sites. 42,43 The total amount of desorbed CO 2 is larger in Mg-Ni-La 2 O 3 compared to other catalysts, especially CO 2 desorbed from strong basic sites. This implies greater amount and enhanced strength of basic sites which can facilitate the adsorption and activation of CO 2 and enhance the DRM activity.…”

Single‐step conversion of levulinic acid to valeric acid over bimetallic Ni‐Co/H‐ZSM‐5 catalysts

“…As metal content increases, the surface area of catalysts is decreased due to the pore blockage of the support. [34][35] The XRD patterns of calcined 20NiHZ, 20CoHZ, and NiÀ Co/ H-ZSM-5 catalysts were presented in Figure 1. The XRD patterns of H-ZSM-5 show characteristic diffraction peaks of the crystalline H-ZSM-5 zeolite [36,37] For the 20CoHZ catalyst, the diffraction peaks at 2θ of 31…”

“…The surface area of H‐ZSM‐5 is more than supported metal catalysts. As metal content increases, the surface area of catalysts is decreased due to the pore blockage of the support [34–35] …”