▎ 摘　　要

NOVELTY - A carbon nanotube graphene coated iron carbide catalyst comprises iron carbide as main active component. The graphene coated iron carbide is coated inside the carbon nanotubes as main active component. USE - Carbon nanotube graphene coated iron carbide catalyst for hydrogenation of aromatic nitro compound (claimed). ADVANTAGE - The catalyst has a wide source of raw materials and the cost of raw material is reduced. The preparation process of iron carbide catalyst is simplified. The catalyst is obtained with high activity, good stability and reused potential. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of carbon nanotube graphene coated iron carbide catalyst for hydrogenation of aromatic nitro compound, which involves mixing glucose, melamine and anhydrous ferric chloride in distilled water at uniform mixture and drying mixture at 80 degrees C for 12 hours to prepare brown solid, pulverizing the brown solid to powder and transferring the brown solid to high-temperature tube furnace for heating at 700-800 degrees C under nitrogen for 4 hours to prepare black solid, cooling black solid substance at room temperature, and transferring to a glass beaker, washing the black solid substance with 10 %mass hydrochloric acid solution for six hours, filtering solids with a microporous membrane, after washing with hydrochloric acid, washing solids with distilled water to neutral and drying at 50 degrees C for 10 hours to prepare carbon nanotube graphene coated iron carbide catalyst. The mass ratio of glucose, melamine and anhydrous ferric chloride is 1:1:1. The amount of distilled water is 1-2 times of glucose. The amount of hydrochloric acid solution is 10-20 times of the black solid substance.