Incorporation of WO3 species into TiO2 nanotubes via wet impregnation and their water-splitting performance

• Published in: Electrochimica acta Vol. 87; pp. 294 - 302
• Main Authors: Lai, Chin Wei, Sreekantan, Srimala
• Format: Journal Article
• Language: English
• Published: Kidlington Elsevier Ltd 01.01.2013; Elsevier
• Subjects: Ammonium paratungstate; Anodization; Anodizing; Chemistry; Concentration (composition); Dispersions; Electrochemistry; Exact sciences and technology; General and physical chemistry; Impregnation; Nanotubes; Photoelectrochemical; Photoelectrochemistry. Electrochemiluminescence; Titanium dioxide; Tungsten oxides; Wet impregnation; WO3–TiO2 nanotubes; X-rays; WO3–TiO2 nanotubes; Ammonium paratungstate; Anodization; Photoelectrochemical; Wet impregnation; Water; Photoelectrochemistry; Titanium IV Oxides; Ammonium Tungstates; Nanotube; Tungsten Compounds; Impregnation; nanotubes; Anodizing; Tungsten VI Oxides; WO; Photoelectrolysis; TiO; Performance

[Display omitted] ► Hybrid WO3–TiO2 nanotubes were prepared using anodization and wet impregnation techniques. ► A maximum photocurrent density of up to 2.1mA/cm2 (η≈5.1%) was achieved. ► Lattice doping of the W6+ ions within TiO2 formed WOTi bonds in this binary system. ► Optimum WO3 content acted...