Ultra-small Rh nanoparticles supported on WO_3-x nanowires as efficient catalysts for visible-light-enhanced hydrogen evolution from ammonia borane.

ABSTRACT: Hydrolysis of ammonia borane (AB) is a safe and convenient means of H₂ production when efficient catalysts are used. Here we report a facile one-pot solvothermal method to synthesize Rh/WO_3-x hybrid nanowires. Ultra-small Rh nanoparticles with an average size of ∼1.7 nm were tightly anchored on WO_3-x nanowires. Rh/WO_3-x catalysts exhibited substantially enhanced activity for hydrolytic dehydrogenation of AB under both dark and visible light irradiation conditions relative to mixed Rh nanoparticles and WO_3-x nanowires (Rh + WO_3-x ), and Rh/C and WO_3-x nanowires. X-ray photoelectron spectroscopy (XPS) analysis indicated that the synergistic effect between Rh nanoparticles an

SUBMITTER: Li X 

PROVIDER: S-EPMC9416929 | biostudies-literature | 2019 Oct

REPOSITORIES: biostudies-literature