Faculty of Materials and Metallurgical Engineering, Kunming University of Science and Technology, Kunming 650093, China;
Faculty of Materials and Metallurgical Engineering, Kunming University of Science and Technology, Kunming 650093, China;
Faculty of Materials and Metallurgical Engineering, Kunming University of Science and Technology, Kunming 650093, China;
perovskite-type catalyst; methane catalytic combustion; sol-gel; TPD-TPR-MS characterization;