Continuous electroproduction of formate via CO₂ reduction on local symmetry-broken single-atom catalysts.

ABSTRACT: Atomic-level coordination engineering is an efficient strategy for tuning the catalytic performance of single-atom catalysts (SACs). However, their rational design has so far been plagued by the lack of a universal correlation between the coordination symmetry and catalytic properties. Herein, we synthesised planar-symmetry-broken CuN₃ (PSB-CuN₃) SACs through microwave heating for electrocatalytic CO₂ reduction. Remarkably, the as-prepared catalysts exhibited a selectivity of 94.3% towards formate at -0.73 V vs. RHE, surpassing the symmetrical CuN₄ catalyst (72.4% at -0.93 V vs. RHE). In a flow cell equipped with a PSB-CuN₃ electrode, over 90% formate selectivity was maintained at an average current density of 94.4 mA cm^-2 d

SUBMITTER: Dong J 

PROVIDER: S-EPMC10611760 | biostudies-literature | 2023 Oct

REPOSITORIES: biostudies-literature