Research progress on performance optimization of automotive exhaust catalysts
Focusing on the performance optimization methods of three common automotive exhaust cata-lysts:Precious metal catalysts,rare earth catalysts,and perovskite catalysts.They are discussed from three aspects:Support,preparation methods,and doped metals.Faced with the continuous strict emission stand-ards for exhaust pollutants,catalyst synergistic purification technology is conducive to the removal of ex-haust pollutants.The design and preparation of efficient catalysts are key factors in purifying automotive exhaust.Focuses on the advantages and disadvantages of different optimization techniques and looks for-ward to the development direction of future catalyst performance optimization methods:To develop new catalysts with high temperature stability,high performance and low cost by focusing on the advantages of various catalysts and performance optimization methods.Provide ideas for the selection of catalyst optimi-zation methods for automobile exhaust gas.
precious metal catalystsrare earth catalystsperovskite catalystperformance optimization meth-ods