what are negetive catalyst explain briefly with related to carbon and carbon with help of examples

Inhibitors (negative catalyst) are the chemicals that retard the activity of a catalyst. In other words, they have a negative effect on the activity of a catalyst. For example, the inhibitors interact with the active functional groups on the enzyme surface and often reduce or completely destroy the catalytic activity of the enzymes. The use of many drugs is related to their action as enzyme inhibitors in the body.

Example :

Added acetanilide((negative catalyst))  slows down the decomposition of Hydrogen peroxide(drug store).

2H₂O₂ → 2H₂O + O₂.