The hydrophilic treatment of a novel co-catalyst for greatly improving the solar water splitting performance over Mo-doped bismuth vanadate

Roles of Cocatalysts on BiVO4 Photoanodes for Photoelectrochemical Water Oxidation: A Minireview

“…Inspired by the aforementioned study, Hu et al further investigated carbon-based cobalt cocatalysts (Co-Ci) to replace Co-based LDH. This Co-Ci material can be well deposited on Mo:BiVO 4 .…”

A comprehensive machine learning strategy for designing high-performance photoanode catalysts

“…, charge extraction), 4,5 which can be adjusted by band alignment between the photoelectrode and cocatalyst; 6–9 (2) some semiconductor-type cocatalysts can not only form heterojunctions through band alignment with photoelectrodes but also improve light absorption; 10,11 (3) accelerating surface reactions by reducing overpotentials, 5,9,12 improving photovoltage, 13,14 and enriching active sites, 9,12 where improved photovoltage refers to reducing the potential drop within the Helmholtz layer through the passivation of surface states and the alleviation of Fermi-level pinning by cocatalysts; 13–15 (4) suppressing photo- and/or chemical-corrosion of photoelectrodes by rapidly collecting electrons/holes in the cocatalyst layer, 16 removing surface trapping states, 4 and isolating photoelectrode from electrolyte; 17 (5) improving surface wettability to ensure faster delivery of holes/electrons to the reaction interface; this enhancement comes from the improved surface reaction kinetics caused by the full contact between the electrolyte and cocatalyst as well as rapid release of gaseous products. 18,19…”

Electrosynthesis of Superhydrophilic Nickel Nanosheets on a Three-Dimensional Microporous Template: Applicability toward MOR

“…Higher wettability will reduce the adhesion force of the gaseous products, resulting in easier detachment of the bubbles and preventing the blockage of the electrode surface . Additionally, since the electrochemically active surface area increases due to improved wettability, the electrode surface will be more accessible for methanol in the electrolyte, and the reaction kinetics will be enhanced. , An increase in both porosity and roughness enhances the surface’s wettability, thereby improving hydrophilicity. , Based on Wenzel’s explanation, it can be deduced that increasing the surface roughness intensifies the intrinsic quality of the material in terms of wettability. If the ideally smooth surface of the material is hydrophilic, then the roughness will further enhance its hydrophilicity; the same applies to hydrophobic surfaces.…”

“…7,8 An increase in both porosity and roughness enhances the surface's wettability, thereby improving hydrophilicity. 9,10 Based on Wenzel's explanation, 11 it can be deduced that increasing the surface roughness intensifies the intrinsic quality of the material in terms of wettability. If the ideally smooth surface of the material is hydrophilic, then the roughness will further enhance its hydrophilicity; the same applies to hydrophobic surfaces.…”