Enhanced photo-electrocatalytic performance of Pt/RGO/TiO2 on carbon fiber towards methanol oxidation in alkaline media |
| |
| Authors: | Caiqin Wang Fengxing Jiang Ruirui Yue Huiwen Wang Yukou Du |
| |
| Institution: | 1. College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China
2. College of Communications and Electronics, Jiangxi Science and Technology Normal University, Nanchang, 330013, China
|
| |
| Abstract: | In the present work, a novel electrode composed of TiO2, reduced graphene oxide (RGO) and Pt nanoparticles on carbon fiber (CF), denoted as Pt/RGO/TiO2/CF, has been fabricated successfully and employed as a photo-electrocatalyst for methanol oxidation in alkaline media. The spherical TiO2 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 TiO2. The as-prepared Pt/RGO/TiO2/CF electrode shows enhanced electrocatalytic activity and stability compared with Pt/TiO2/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/TiO2/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. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
