Molecular modification enables CO₂ electroreduction to methane on platinum surface in acidic media.

ABSTRACT: Cu-based materials can produce hydrocarbons in CO₂ electroreduction (CO₂RR), but their stability still needs to be enhanced particularly in acidic media. Metallic Pt is highly stable in both acidic and alkaline media, yet rarely utilized in CO₂RR, due to the competitive activity in hydrogen evolution reaction (HER). In this research, abundant thionine (Th) molecules are stably confined within Pt nanocrystals via a molecular doping strategy. The Pt surface is successfully modulated by these Th molecules, and thereby the dominant HER activity is converted to CO₂RR activity. CO₂ could be electroreduced to CH₄ using organic molecule-modified Pt-based catalysts for the first time. Specifically, this composite catalyst maintains m

SUBMITTER: Yang H 

PROVIDER: S-EPMC11631074 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature