Pt Single Atoms Loaded on Thin-Layer TiO₂ Electrodes: Electrochemical and Photocatalytic Features.

ABSTRACT: Recently, the use of Pt in the form of single atoms (SA) has attracted considerable attention to promote the cathodic hydrogen production reaction from water in electrochemical or photocatalytic settings. First, produce suitable electrodes by Pt SA deposition on Direct current (DC)-sputter deposited titania (TiO₂) layers on graphene-these electrodes allow to characterization of the electrochemical properties of Pt single atoms and their investigation in high-resolution HAADF-STEM. For Pt SAs loaded on TiO₂, electrochemical H₂ evolution shows only a very small overpotential. Concurrent with the onset of H₂ evolution, agglomeration of the Pt SAs to clusters or nanoparticles (NPs) occurs. Potential cycling can be used to control SA agglomeration to

SUBMITTER: Zhou X 

PROVIDER: S-EPMC11579980 | biostudies-literature | 2024 Nov

REPOSITORIES: biostudies-literature