Nickel metal–organic frameworks for visible-light CO2 reduction under mild reaction conditions

A well-defined nickel metal-organic framework (Ni-MOF) is obtained via solvothermal synthesis from nickel and 3,3′,5,5′-azobenzene tetracarboxylic acid ligands (H 4 abtc). Ni-MOF exhibits remarkable performance for photocatalytic CO 2 -to-CO conversion.