Foreign element doping could improve the charge transport of photoelectrodes, however, new recombination centers may be introduced. This paper describes a facile photoetching approach that alleviates the negative effects from bulk defects by confining the oxygen vacancy (O vac) at the surface of BiVO4 photoanode, via a 10‐minute photoetching. This strategy could induce enriched O […]

Silicon-based (Si-based) junctions have been widely investigated in recent years as photoelectrochemical (PEC) water splitting photoelectrodes, including buried junctions and metal-insulator-semiconductor (MIS) Schottky junctions. However, Si-based MIS photoelectrodes suffer from low performance for PEC oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) because of the dilemma that a thin insulator cannot provide enough interfacial […]

The active sites of heterogeneous catalysts can be difficult to identify and understand, and, hence, the introduction of active sites into catalysts to tailor their function is challenging. During the past two decades, scaling relationships have been established for important, heterogeneous catalytic reactions. More specifically, a physical or chemical property of the reaction system, termed […]

Oxygen chemistry plays a pivotal role in numerous chemical, energy and environmental systems. Particularly, selective cleavage of C–H bonds by metal oxo species is highly desirable in the catalytic dehydrogenation of light alkanes. However, high selectivity of alkene is usually hampered through consecutive oxygenation reactions in conventional oxidative dehydrogenation (ODH) scheme. Herein, we show that […]

The peroxone reaction between O3 and H2O2 has been deemed a promising technology to resolve the increasingly serious water pollution problem by virtue of the generation of superactive hydroxyl radicals (•OH), but it suffers greatly from an extremely limited reaction rate constant under acidic conditions (ca. less than 0.1 M–1 s–1 at pH 3). This […]