Reversible dehydrogenation and rehydrogenation of cyclohexane and methylcyclohexane by single-site platinum catalyst.

ABSTRACT: Developing highly efficient and reversible hydrogenation-dehydrogenation catalysts shows great promise for hydrogen storage technologies with highly desirable economic and ecological benefits. Herein, we show that reaction sites consisting of single Pt atoms and neighboring oxygen vacancies (V_O) can be prepared on CeO₂ (Pt₁/CeO₂) with unique catalytic properties for the reversible dehydrogenation and rehydrogenation of large molecules such as cyclohexane and methylcyclohexane. Specifically, we find that the dehydrogenation rate of cyclohexane and methylcyclohexane on such sites can reach values above 32,000 mol_H2 mol_Pt^-1 h^-1, which is 309 times higher than that of conventional supported Pt nanoparticles

SUBMITTER: Chen L 

PROVIDER: S-EPMC8888751 | biostudies-literature | 2022 Mar

REPOSITORIES: biostudies-literature