Negative catalysts or inhibitors are those responsible for reducing or reducing the speed or rapidity of chemical reactions; In other words, they are substances that slow down the speed of reactions. Its use is not greater than the use of positive catalysts, which on the other hand, these are responsible for accelerating the process of chemical reactions, they are substances that increase the activity of catalysts. Therefore, it can be said that catalysts are substances, that either, they can increase or decrease the speed of a chemical reaction, but that nevertheless in the end no chemical change is made.
Most of the existing catalysts are those that help speed up the speed of chemical reactions, which are the promoters, but there are also negative catalysts, also called "inhibitors", which slow down the evolution of reactions, that is, these are slower. These two types of catalysts the negative and positive are used in trace amounts, since they are reusable. After having finished the reaction, with both types of catalysts, you will have the same mass of catalyst that you had at the beginning.
Enzymes are biological catalysts, for their part, cars must use a catalyst to control the exhaust system through catalytic converters. In the diversity of industrial processes, the sum of products and the speed of production must go together; Therefore, when chemical processes are carried out, it must be estimated that they remain energy efficient but also provide a clean and economical option in order to make industrial processes competitive, and this is the full purpose of the use of catalysts.
