Regulation of functional groups on graphene quantum dots directs selective CO₂ to CH₄ conversion.

ABSTRACT: A catalyst system with dedicated selectivity toward a single hydrocarbon or oxygenate product is essential to enable the industrial application of electrochemical conversion of CO₂ to high-value chemicals. Cu is the only known metal catalyst that can convert CO₂ to high-order hydrocarbons and oxygenates. However, the Cu-based catalysts suffer from diverse selectivity. Here, we report that the functionalized graphene quantum dots can direct CO₂ to CH₄ conversion with simultaneous high selectivity and production rate. The electron-donating groups facilitate the yield of CH₄ from CO₂ electro-reduction while electron-withdrawing groups suppress CO₂ electro-reduction. The yield of CH₄ on electron-donating gr

SUBMITTER: Zhang T 

PROVIDER: S-EPMC8421353 | biostudies-literature | 2021 Sep

REPOSITORIES: biostudies-literature