CO2 electrochemical reduction reaction (CO2RR) to formate is a hopeful pathway for reducing and producing high-value chemicals, which needs highly selective catalysts with ultra-broad potential windows meet the industrial demands. Herein, nanorod-like bimetallic In2O3/Bi2O3 were successfully synthesized by pyrolysis of InBi-MOF precursors. The abundant oxygen vacancies generated from lattice mi...