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- Title
Enhanced photo-electrocatalytic performance of Pt/RGO/TiO on carbon fiber towards methanol oxidation in alkaline media.
- Authors
Wang, Caiqin; Jiang, Fengxing; Yue, Ruirui; Wang, Huiwen; Du, Yukou
- Abstract
In the present work, a novel electrode composed of TiO, reduced graphene oxide (RGO) and Pt nanoparticles on carbon fiber (CF), denoted as Pt/RGO/TiO/CF, has been fabricated successfully and employed as a photo-electrocatalyst for methanol oxidation in alkaline media. The spherical TiO nanoparticles are loaded on CF surface by an in situ method and wrapped by the gauze-like RGO. Meanwhile, the RGO effectively extends the absorption edge to visible light region based on the UV-vis diffuse reflectance absorption spectra (DRS) and promotes the good dispersion of Pt nanoparticles electro-deposited on the surface of RGO-wrapped TiO. The as-prepared Pt/RGO/TiO/CF electrode shows enhanced electrocatalytic activity and stability compared with Pt/TiO/CF and Pt/CF electrodes both with and without light irradiation. The RGO plays an important role for the enhancement of electrocatalytic and photo-electrocatalytic performance. Moreover, Pt/RGO/TiO/CF presents a higher photo-electrocatalytic activity for methanol oxidation with light irradiation than that without light irradiation due to the synergistic effect among them.
- Subjects
ELECTRODES; PHOTOELECTROCHEMISTRY; METHANOL; OXIDATION; SOLID state chemistry; ELECTROCHEMISTRY
- Publication
Journal of Solid State Electrochemistry, 2014, Vol 18, Issue 2, p515
- ISSN
1432-8488
- Publication type
Article
- DOI
10.1007/s10008-013-2282-1