▎ 摘　　要

NOVELTY - Graphene-promoted hydrotalcite-based denitration catalyst of (I) is new. The catalyst is prepared by co-precipitation method by loading hydrotalcite nano sheet on the graphene surface, and calcining. USE - Used as a graphene-promoted hydrotalcite-based denitration catalyst. ADVANTAGE - The catalyst has specific surface area of 80-110 m2/g, pore volume of 0.3-0.4 cc/g, and pore distribution of mesoporous distribution (claimed); has high catalytic activity and good stability of nitrogen oxide; and is provided with enhanced nitric oxide direct decomposing ability. DETAILED DESCRIPTION - Graphene-promoted hydrotalcite-based denitration catalyst of formula M2+2Mg2+Al3+ (0) (I) is new. M2+ = Cu2+, Co2+, Ni2+, or Mn2+. The molar ratio of M2+, Mg2+ and Al3+ is 2:1:1. The catalyst is prepared by co-precipitation method by loading hydrotalcite nano sheet on the graphene surface, and calcining. An INDEPENDENT CLAIM is also included for preparing graphene-promoted hydrotalcite-based denitration catalyst.