Atomically Dispersed Ni-N-C Catalysts for Electrochemical CO₂ Reduction.

ABSTRACT: 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 (CO₂RR). Herein, the study reports a highly selective, atomically dispersed Ni_1.0%-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_x active site at this reduced loading. The catalyst shows excellent activity and selectivity toward CO generation, with a faradaic efficiency for CO generation (FE_CO) of 97% and partial current density for CO (j_co) of -9.0 mA cm^-2<

SUBMITTER: Weiss JC 

PROVIDER: S-EPMC11899493 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature