Influence of preparation methods of La2CoMnO6/CeO2 on the methane catalytic combustion

Combustion of lean methane over Co3O4 catalysts prepared with different cobalt precursors

“…But higher reaction temperature, emission of unburned hydrocarbons and more polluting environmental pollutants (NO x ), as well as lower energy efficiency represent serious disadvantages of ame combustion. 7 Catalytic combustion is considered to be one of the most efficient and promising technologies for the removal of methane due to its low operating temperature and high efficiency. 8,9 Thus, it is crucial to develop a catalyst with outstanding catalytic ignition activity and high thermal stability for complete methane combustion.…”

Mn/Co Redox Cycle Promoted Catalytic Performance of Mesoporous SiO2‐Confined Highly Dispersed LaMnxCo1‐xO3 Perovskite Oxides in n‐Butylamine Combustion

“…Since La 3 + was non-reducible under the H 2 -TPR conditions adopted in the present study, the observed reduction peaks were due to the reducibility of B-site species in LM x C 1-x O/SiO 2 samples. [15] For all sample, two main reduction peaks were observed, the first one in the temperature range of 350-450°C was ascribed to the reduction of Mn 4 + to Mn 3 + and/or Co 3 + to Co 2 + , and the second one in the temperature range of 590-810°C was ascribed to the reduction of Mn 3 + to Mn 2 + and/or Co 2 + to Co 0 . The data of H 2 consumption of LM x C 1-…”

Preparation and evaluation of A/ BaO‐MnO x catalysts (A: Rh, Pt, Pd, Ru) in lean methane catalytic combustion at low temperature

“…Generally, three mechanisms-Langmuir-Hinshelwood (LH), Eley-Riedel (ER), and Mars-van Krevelen (MvK)-have been suggested for methane catalytic combustion. [26][27][28][29] However, methane combustion is a complex reaction, and therefore, the discussion of the reaction mechanism is so broad, which is not the subject of the present study. But in brief, CH 4 molecules are physically adsorbed on the surface of the catalyst and separated into CH 3 Á or CH Á.…”