Division of Chemistry and Technology of Fuels;
Wroclaw University of Technology;
Wroclaw;
Poland;
Institute of Low Temperature and Structural Research Polish Academy of Sciences;
Wroclaw;
Poland;
Institute of Technology of Inorganic and Mineral Fertilizers;
Wroclaw University of Technology;
Wroclaw;
Poland;
Perovskite; Different Synthesis Method; Lean Methane Combustion; Combustion Rate; Ventilation Air Methane;