Details

Autor(en) / Beteiligte

• Gonçalves, Ricardo H.
• Leite, Lucas D. T.
• Leite, Edson R.

Titel

Colloidal WO3 Nanowires as a Versatile Route to Prepare a Photoanode for Solar Water Splitting

Ist Teil von

• ChemSusChem, 2012-12, Vol.5 (12), p.2341-2347

Ort / Verlag

Weinheim: WILEY-VCH Verlag

Erscheinungsjahr

2012

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• This work describes a synthetic method to produce a WO3 nanowire as well as to prepare photoanodes by colloidal nanowire deposition. We also studied the influence of a nanowire phase on the photoanode performance for water splitting. Among the nanowires synthesized by using nonhydrolytic media, the orthorhombic WO3⋅H2O nanowire produced a photoanode with excellent performance (a photocurrent of 1.96 mA cm−2 at 1.23 VRHE) and good photocurrent stability during long‐term analysis (chronoamperometry test). The structural and photoelectrochemical characterization showed the importance of nanostructural features such as exposed (200), (020), and (002) facets and porosity in the WO3 photoanode performance. Wired for success: We describe a synthetic method to produce WO3 nanowires as photoanodes through colloidal nanowire deposition. Among the several nanowires synthesized in non‐hydrolytic media, orthorhombic WO3⋅H2O nanowires show the best performance as photoanode and also good photocurrent stability during long‐term analysis. Structural and photoelectrochemical characterization shows the importance of nanostructural features in WO3 photoanode performance.