Citation: Shuai Shen, Xiuli Wang, Qian Ding, Shaoqing Jin, Zhaochi Feng, Can Li. Effect of Pt cocatalyst in Pt/TiO₂ studied by in situ FTIR of CO adsorption[J]. Chinese Journal of Catalysis, ;2014, 35(11): 1990-1906. doi: 10.1016/S1872-2067(14)60172-8 shu

Effect of Pt cocatalyst in Pt/TiO₂ studied by in situ FTIR of CO adsorption

Shuai Shen ^a,b ,
Xiuli Wang ^a ,
Qian Ding ^a,b ,
Shaoqing Jin ^a,b ,
Zhaochi Feng ^a ,
Can Li ^a,,

1.
a State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian National Laboratory for Clean Energy, Dalian 116023, Liaoning, China;

Corresponding author: Can Li,
Received Date: 10 May 2014
Available Online: 19 June 2014
Fund Project: 国家自然科学基金(21090341,21173213, 21373209) (21090341,21173213, 21373209)国家重点基础研究发展计划(973计划,2009CB220010,2009CB623507). (973计划,2009CB220010,2009CB623507)

In situ transmission infrared spectroscopy was used to study the role of Pt cocatalyst in Pt/TiO₂ using CO as a probe molecule. An 11 cm^-1 redshift of CO adsorbed on Pt/TiO₂ was observed under irradiation in the absence of changes in the CO coverage or sample temperature. In contrast, no CO shift was detected on Pt/Al₂O₃. This indicates that the redshift of the CO adsorption peak is due to the photogenerated electron transfer from TiO₂ to Pt, and this accounts for the increased photocatalytic activity by the loaded Pt cocatalyst.
- Carbon monoxide adsorption,
- Platinum,
- Titania,
- Cocatalyst,
- Photocatalysis
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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Effect of Pt cocatalyst in Pt/TiO2 studied by in situ FTIR of CO adsorption

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通讯作者: 陈斌, bchen63@163.com

Effect of Pt cocatalyst in Pt/TiO₂ studied by in situ FTIR of CO adsorption