Atomically Dispersed Ni-N-C Catalysts for Electrochemical CO Reduction.

The atomic dispersion of nickel in Ni-N-C catalysts is key for the selective generation of carbon monoxide through the electrochemical carbon dioxide reduction reaction (CORR). Herein, the study reports a highly selective, atomically dispersed Ni-N-C catalyst with reduced Ni loading compared to previous reports. Extensive materials characterization fails to detect Ni crystalline phases, reveals the highest concentration of atomically dispersed Ni metal, and confirms the presence of the proposed Ni-N active site at this reduced loading.