Tuning Atomically Precise Gold Nanoclusters for Selective Electroreduction of CO2

The electroreduction of greenhouse gas CO2 into high‐value‐added chemicals using renewable electricity is a promising way to mitigate climate change and realize carbon cycling. Atomically precise thiolate‐protected gold nanoclusters have shown great potential for selective electrochemical conversion of CO2 towards CO due to their quantum confinement effect and unique electronic structures. Additionally, the atomic precision of gold nanocluster is advantageous for investigating the CO2 reduction mechanism, which is typically challenging to understand due to the complexity of the catalytic interface, and unknown structure of the active site in more conventional catalysts. By summarizing CO2 reduction catalyzed by gold nanoclusters, we aim to identify key factors that contribute to the activity, selectivity and stability of nanocluster catalysts, as well as elucidate the CO2 reduction pathway, thereby contributing to the design of more active and selective nanocluster catalysts for CO2 reduction.