Electron donation of non-oxide supports boosts O₂ activation on nano-platinum catalysts.

ABSTRACT: Activation of O₂ is a critical step in heterogeneous catalytic oxidation. Here, the concept of increased electron donors induced by nitrogen vacancy is adopted to propose an efficient strategy to develop highly active and stable catalysts for molecular O₂ activation. Carbon nitride with nitrogen vacancies is prepared to serve as a support as well as electron sink to construct a synergistic catalyst with Pt nanoparticles. Extensive characterizations combined with the first-principles calculations reveal that nitrogen vacancies with excess electrons could effectively stabilize metallic Pt nanoparticles by strong p-d coupling. The Pt atoms and the dangling carbon atoms surround the vacancy can synergistically donate electrons to the antibonding orbital of the adsorbed O<

SUBMITTER: Gan T 

PROVIDER: S-EPMC8115247 | biostudies-literature | 2021 May

REPOSITORIES: biostudies-literature