铜基材料在电催化还原硝酸盐产氨技术中的应用进展OA

Ammonia plays an important role in human activities,which is used widely in various industries with noticeable economic values.The main method currently used in ammonia synthesis is Haber-Bosch method,which requires high-temperature or high-pressure conditions,suffering low efficiency and high energy cost.In comparison,electro-reduction of nitrite for ammonia production is a NH3-selective green chemistry process with low energy consumption.Cu-based materials are chosen as common catalyst materials in electro-production of ammonia owing to the abundance of source materials and high reaction activity towards nitrite.State-of-art Cu-based materials applied in electro catalysis of nitrate for ammonia production are mainly:metallic Cu,metallic-doped Cu-based materials,alloys,Cu oxide,Cu-containing polymetallic oxide,Cu-containing metal-organic framework(MOF),etc.These catalysts improve performances of ammonia production with different mechanisms,such as surface modulation,electron structure modulation,synergy of catalytic active centers,construction of built-in electric fields,etc.This paper aims to integrate performances and mechanisms of different Cu-based catalysts for electrochemical production of ammonia,and to provide reference for future research in this field.