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Noble-Metal-Free Photocatalytic Hydrogen Evolution Activity: The Impact of Ball Milling Anatase Nanopowders with TiH2

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arxiv 2005.01488 v1 pith:6ENAQQHL submitted 2020-04-14 physics.chem-ph cond-mat.mtrl-sci

classification physics.chem-phcond-mat.mtrl-sci
keywords activityanataseballeffectevolutionmillingnoble-metal-freephotocatalytic
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In this work, we demonstrate that a well-established and facile ball milling approach using mixtures of commercial anatase nanoparticles and TiH2 introduces noble-metal-free photocatalytic H2 activity to titania. We characterize this synergistic effect in view of the nature of defects, state of hydroxylation, and investigate the effect on the energetics and kinetics of electronic states and the resulting H2 evolution performance.

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