▎ 摘　　要

NOVELTY - Preparation of nitrogen-doped graphene involves preparing modified nitrogen-doped graphene using graphene oxide as a precursor, 2,4,6-triaminopyrimidine and cyanuric acid, using modified nitrogen-doped graphene as catalyst carrier to in-situ grow ternary manganese-cerium-tin oxide catalyst on the surface by self-assembled denitration and sulfur-resistant catalyst. USE - Preparation of nitrogen-doped graphene. ADVANTAGE - The method provides nitrogen-doped graphene with uniformed self-assembled ternary catalyst which firmly supported on the surface of the modified nitrogen-doped graphene by in-situ growth on the surface. The nitrogen-doped graphene has high denitrification efficiency and excellent sulfur resistance ability. DETAILED DESCRIPTION - Preparation of nitrogen-doped graphene involves preparing modified nitrogen-doped graphene using graphene oxide as a precursor, 2,4,6-triaminopyrimidine and cyanuric acid, using modified nitrogen-doped graphene as catalyst carrier to in-situ grow ternary manganese-cerium-tin oxide (Mn-Ce-SnOx) catalyst on the surface by self-assembled denitration and sulfur-resistant catalyst.