Photoelectrochemical and structural characterization of carbon-doped WO3 films prepared via spray pyrolysis

Effective silicon nanowire arrays/WO3 core/shell photoelectrode for neutral pH water splitting

“…Unfortunately, these strategies have not been able to sufficiently address the major inherent drawback of WO 3 (large band gap Eg2.6 eV) [18], which largely limits its absorbance and photocatalytic activity. Considerable efforts have been made to expand the spectral response of WO 3 , such as elemental doping (e.g., C, In, and N) [19][20][21] and sensitizing with narrow band gap semiconductors (e.g., CdS, PbS, and Bi 2 S 3 ) [22][23][24]. Therefore, developing WO 3 -based nanostructured heterojunction photoanodes with superior light absorbance property can greatly promote its application in the PEC water splitting process.…”

Enhanced photochemical performance of hexagonal WO3 by metal-assisted S–O coupling for solar-driven water splitting

“…In addition, the incorporation of Mo into WO 3 lattice can also result in a decreased band gap energy and remarkably improve the photocatalytic efficiency, compared with the undoped WO 3 [18]. Also, other monodoped WO 3 such as N-, C-, Sn-WO 3 were reported to have high photocatalytic property [19][20][21]. On the other side, density functional theory (DFT) has been used to study the mechanism of enhanced visible light photocatalysis performance and design new WO 3 -based photocatalysts.…”

Effect of Surface Passivation on Photoelectrochemical Water Splitting Performance of WO3 Vertical Plate-Like Films

“…At the same time, co-catalysts like ZnO, BiVO4 and TiO2 were loaded on the WO3 electrodes to improve photoelectrochemical performance [13][14][15]. In order to enhance catalytic performance, some strategies (doped with metal or nonmetal elements [16][17][18] and modified with noble metals [19,20]) have also been reported. Furthermore, surface passivation processes were introduced to PEC, with the aim of decreasing surface charge recombination.…”