The four basic characteristics of catalytic reaction

1. The catalyst can only accelerate reactions that can be carried out thermodynamically. When a new chemical reaction catalyst is required to be developed, the reaction must first be thermodynamically analyzed to see if it is a thermodynamically feasible reaction.

2. The catalyst can only accelerate the reaction towards equilibrium, and cannot change the equilibrium position (equilibrium constant) of the reaction.

3. The catalyst is selective to the reaction. When the reaction may have more than one different direction, the catalyst only accelerates one of them, so that the reaction rate and selectivity are unified.

4. The life of the catalyst. The catalyst can change the rate of the chemical reaction, and it does not enter the reaction by itself. Under ideal conditions, the catalyst is not changed by the reaction. However, in the actual reaction process, the catalyst will undergo some unpredictable physical and chemical changes due to long-term heat and chemical action.

According to the definition and characteristic analysis of catalysts, there are three important catalyst indicators: activity, selectivity, and stability.