Control of monomeric Vo's versus Vo clusters in ZrO_2-x for solar-light H₂ production from H₂O at high-yield (millimoles gr^-1 h^-1).

ABSTRACT: Pristine zirconia, ZrO₂, possesses high premise as photocatalyst due to its conduction band energy edge. However, its high energy-gap is prohibitive for photoactivation by solar-light. Currently, it is unclear how solar-active zirconia can be designed to meet the requirements for high photocatalytic performance. Moreover, transferring this design to an industrial-scale process is a forward-looking route. Herein, we have developed a novel Flame Spray Pyrolysis process for generating solar-light active nano-ZrO_2-x via engineering of lattice vacancies, Vo. Using solar photons, our optimal nano-ZrO_2-x can achieve milestone H₂-production yield, > 2400 μmolg^-1 h^-1 (closest thus, so far, to high photocatalytic water splitting perfo

SUBMITTER: Deligiannakis Y 

PROVIDER: S-EPMC9452565 | biostudies-literature | 2022 Sep

REPOSITORIES: biostudies-literature