Ultrathin transition metal oxychalcogenide catalysts for oxygen evolution in acidic media.

ABSTRACT: Two-dimensional transition metal dichalcogenides (TMDs) exfoliated from bulk layered materials possess interesting properties. Most transition metal oxides are not layered and therefore cannot be exfoliated. Here we report the synthesis of a family of ultrathin materials-transition metal oxychalcogenides (TMOCs)-and demonstrate their unique properties. Two-dimensional TMOCs (MX _x O _y , M = group IV or V transition metal, X = chalcogen, O = oxygen; x, y = 0-2) from bulk transition metal dichalcogenides (MX₂) have been fabricated using tetrabutylammonium intercalation. The stoichiometry of TMOCs can be adjusted, which enables control of their optical bandgaps and tunability of electrical conductivity by more than eight orders of ma

SUBMITTER: Xu W 

PROVIDER: S-EPMC11903303 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature