Highly Selective Electrocatalysts The cover art depicts layered g-C3N4 hosting Cu single atoms and Cu─Cu dual-atom sites. Acting as a catalytic switch, single atoms promote H2 generation (HER), whereas dual-atom sites drive CO2 reduction (CO2RR) predominantly to methane with minor CO. Insets highlight both sites, underscoring atomic-level design for tunable energy conversion. More information can be found in the Research Article by Michitoshi Hayashi, Yao-Jane Hsu, and co-workers (10.1002/adfm.202514183).
Chen et al. (Sun,) studied this question.