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- W2056520075 abstract "Solar hydrogen (H 2 ) generation from water electrolysis is a key target for the development of sustainable hydrogen economy for future energy system. The formation of self-organized and highly ordered titania (TiO 2 ) nanotubes is essential for high efficiency in photoelectrochemical (PEC) water electrolysis application. Based on our preliminary studies, highly ordered TiO 2 nanotubes were successfully synthesized through anodization of titanium (Ti) foil in ethylene glycol (EG) containing 5 wt% of ammonium fluoride (NH 4 F) and 5 wt% of hydrogen peroxide (H 2 O 2 ) at 60 V for 1 h. However, an obvious hindrance to the widespread use of TiO 2 nanotubes as a photoelectrode in PEC water electrolysis system is its poor visible light response and rapid recombination of photo-induced electron/hole pairs. Thus, continuous efforts have been exerted to improve the efficiency of PEC water electrolysis by incorporating an optimum content of W 6+ species into TiO 2 nanotubes. In the present study, a practical technique of radio frequency (RF) sputtering was selected to incorporate W 6+ species into TiO 2 lattice. It was found that TiO 2 nanotubes sputtered at high energy of 50 W for 30 sec demonstrated a maximum photocurrent density of ~ 2.4 mA/cm 2 with photoconversion efficiency ~ 6 %." @default.
- W2056520075 created "2016-06-24" @default.
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- W2056520075 date "2014-04-01" @default.
- W2056520075 modified "2023-09-27" @default.
- W2056520075 title "Development of Hybrid WO<sub>3</sub>-TiO<sub>2</sub> Nanotubes for Solar Hydrogen Generation via Water Electrolysis" @default.
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- W2056520075 doi "https://doi.org/10.4028/www.scientific.net/amr.925.474" @default.
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