New catalytic materials refer to novel catalytic materials with excellent catalytic performance and broad application prospects, including nano-catalytic materials, metal catalytic materials, composite catalytic materials, molecular catalytic materials and biocatalytic materials, etc.

A brief introduction to various types of new catalytic materials is as follows:

1. Nano-catalytic materials: With a particle size ranging from 1 to 100 nanometers, their preparation methods include physical methods (e.g., vapor deposition, sol-gel method) and chemical methods (e.g., hydrothermal method, microemulsion method), and they are applied in petrochemical industry, fine chemical industry, environmental protection, new energy and other fields.

2. Metal catalytic materials: Taking metals or metal compounds as the main components, their preparation methods include reduction method, precipitation method, thermal decomposition method, etc., and their application fields cover petrochemical industry, fine chemical industry, pharmaceutical industry, electronics and so on.

3. Composite catalytic materials: Composed of two or more catalysts and featuring a synergistic effect, their preparation methods include physical mixing method, chemical deposition method, in-situ synthesis method, etc., and they are used in petrochemical industry, fine chemical industry, environmental protection, new energy and other areas.

4. Molecular catalytic materials: With metal complexes or organic molecules as the main components, their preparation methods include coordination synthesis method, organic synthesis method, etc., and their application fields involve petrochemical industry, fine chemical industry, pharmaceutical industry, electronics and others.

5. Biocatalytic materials: Taking enzymes or microorganisms as the main components, they have high activity, high selectivity and high environmental friendliness. Their preparation methods include fermentation method, immobilized enzyme method, etc., and they are applied in food industry, pharmaceutical industry, environmental protection, new energy and other sectors.

6. Photocatalytic materials: Capable of catalyzing chemical reactions under light irradiation, they possess high activity, high selectivity and high environmental friendliness. Their preparation methods include sol-gel method, hydrothermal method, precipitation method, etc., and their application fields include environmental protection, energy conversion, water treatment and so on.