The metal ion in single-atom NO reduction electrocatalysts dictates product selectivity

Nitric oxide is a major air pollutant associated with environmental problems, including acid rain, smog, and depletion of the ozone layer. In this issue of Chem Catalysis, Zhang, Li, and co-workers develop mono-dispersed single-atom transition-metal (Fe, Co, and Ni) electrocatalysts, where the metal ion dictates product selectivity, to reduce NO.