The high activity of Co-Mn-based solid solution catalysts for lean methane combustion

A judicious injection and abstraction of a hetero-dopant in a Co3O4 catalyst for efficient methane oxidation

“…5, The peaks at 3016 cm −1 and 1304 cm −1 belong to gaseous methane, the peak at 1432 cm −1 represents the asymmetric stretching of CH 3 –, and the peaks at 1220 cm −1 and 1350 cm −1 correspond to carbonate stretching. 62,63 In addition, the peak at 1022 cm −1 belong to the methanol. 64 This indicates that the main intermediates of methane oxidation are methanol, formate and carbonate, indicating that the oxidation process is as follows: CH 4 → CH 3 – → CH 3 OH → CO 3 2− → CO 2 .…”

Recent advances and future challenges in the catalytic combustion of light hydrocarbon VOCs

“…77 Likewise, the catalytic combustion of light hydrocarbons over metal oxide catalysts with high oxygen storage capacity and strong oxygen activation ability, such as Mn-based catalysts, Co-based catalysts, and so on, also mostly follows the MvK mechanism. 83,112,133,135,137,158,174,175 Yang et al reported that the catalytic combustion of alkenes and aralkenes on Mn–Cr–O spinel oxides followed the MvK mechanism. 158 Li et al suggested that the catalytic combustion of propane molecules over Co 3 O 4 catalysts with different morphologies followed the MvK mechanism, and the oxygen vacancies on the catalysts facilitated the activation of molecular oxygen and the migration of lattice oxygen.…”