Asymmetric dinitrogen-coordinated nickel single-atomic sites for efficient CO electroreduction.

Abstract in brief

• This study introduces a nickel-based single-atom catalyst coordinated with pyrrolic and pyridinic nitrogen, which shows high efficiency and selectivity in converting CO2 to CO, especially at low overpotentials.
• The catalyst achieves a high partial current density and turnover frequency, maintaining over 90% Faradaic efficiency for CO production across a range of voltages, with detailed spectroscopy and theoretical analysis explaining how the nickel sites facilitate the reaction.
• Overall, the research highlights the catalyst's potential for effective CO2 reduction and provides valuable insights into the atomic-level mechanisms that drive its catalytic activity.]