Pressure-Dependent CO Electroreduction to Methane over Asymmetric Cu-N Single-Atom Sites.

Single-atom catalysts (SACs) with unitary active sites hold great promise for realizing high selectivity toward a single product in the CO electroreduction reaction (CORR). However, achieving high Faradaic efficiency (FE) of multielectron products like methane on SACs is still challenging. Herein, we report a pressure-regulating strategy that achieves 83.

Gas-induced controllable synthesis of the Cu(100) crystal facet for the selective electroreduction of CO to multicarbon products.

Electrocatalytic CO reduction (ECR) to high value-added chemicals is an excellent method to attenuate the impact of greenhouse effect caused by CO. At the same time, multicarbon products (C) get extensive attention in view of their relatively high energy density and market price. At present, Cu is an important metal electrocatalyst to convert CO into multicarbon products ( ethylene, ethanol, and -propanol); however, its poor selectivity impedes its practical application.