Mixed-oxide Ti1-xWxO2 as support for (photo)-electrochemical processes

作者：Mokrane Soualah S; Gago A S; Habrioux A; Alonso Vante N^*

来源：Applied Catalysis B: Environmental , 2014, 147: 756-763.

DOI：10.1016/j.apcatb.2013.10.012

• TiO2
• Sol-gel
• Photoelectrochemistry
• ORR
• Substrate

In this study, mixed-oxides of Ti1-xWxO2 (0 %26lt;= x %26lt;= 0.3) nanomaterials have been synthesized via a multistep sol-gel process. The effect of W doping on the anatase structure and on the electrical conductivity of the material was investigated. Photo-electrochemical action spectra and UV-vis spectroscopy were used to determine the bang-gap energy of the mixed-oxides. The electrochemical stability of these materials was also investigated before they were tested as substrate for platinum nanocatalysts for oxygen reduction reaction. The metal was deposited onto the support either via the chemical route (carbonyl method) or via UV-irradiation.

• 出版日期2014-4-5