The purifying agent in 1. three-way catalytic converter will enhance the activity of three gases, namely CO, HC and nitrogen oxides, and promote them to carry out certain redox chemical reactions, in which CO is oxidized into colorless and nontoxic carbon dioxide gas at high temperature;

2.HC compounds are oxidized to water (H2O) and carbon dioxide at high temperature; Nitrogen oxides are reduced to nitrogen and oxygen.

3. Turn three kinds of harmful gases into harmless gases and purify automobile exhaust.