Surface Oxygen Injection in Tin Disulfide Nanosheets for Efficient CO₂ Electroreduction to Formate and Syngas.

ABSTRACT: Surface chemistry modification represents a promising strategy to tailor the adsorption and activation of reaction intermediates for enhancing activity. Herein, we designed a surface oxygen-injection strategy to tune the electronic structure of SnS₂ nanosheets, which showed effectively enhanced electrocatalytic activity and selectivity of CO₂ reduction to formate and syngas (CO and H₂). The oxygen-injection SnS₂ nanosheets exhibit a remarkable Faradaic efficiency of 91.6% for carbonaceous products with a current density of 24.1 mA cm^-2 at -0.9 V vs RHE, including 83.2% for formate production and 16.5% for syngas with the CO/H₂ ratio of 1:1. By operando X-ray absorption spectroscopy, we unravel the in situ surface oxygen dopi

SUBMITTER: Chen T 

PROVIDER: S-EPMC8421506 | biostudies-literature | 2021 Sep

REPOSITORIES: biostudies-literature