Citation: Xiaobing Zhu, Xin Qu, Xiaosong Li, Jinglin Liu, Jianhao Liu, Bin Zhu, Chuan Shi. Selective reduction of carbon dioxide to carbon monoxide over Au/CeO₂ catalyst and identification of reaction intermediate[J]. Chinese Journal of Catalysis, ;2016, 37(12): 2053-2058. doi: 10.1016/S1872-2067(16)62538-X shu

Selective reduction of carbon dioxide to carbon monoxide over Au/CeO₂ catalyst and identification of reaction intermediate

Center for Hydrogen Energy and Liquid Fuels;Laboratory of Plasma Physical Chemistry, Dalian University of Technology, Dalian 116024, Liaoning, China

Received Date: 23 August 2016
Revised Date: 29 September 2016

Fund Project: This work was supported by the National Natural Science Foundation of China (11475041, 11175036, 21373037), and the Fundamental Research Funds for the Central Universities (DUT16QY49).

CO₂ selective reduction to CO with H₂ over a CeO₂-supported nano-Au catalyst at atmospheric pressure was investigated. A high CO₂ conversion, approaching the thermodynamic equilibrium value, and nearly 100% CO selectivity were obtained. The surface formate intermediates generated during the reverse water-gas shift reaction at 400℃ were identified using in situ diffuse-reflectance infrared Fourier-transform spectroscopy. The formate consumption to give CO and H₂O, determined using mass spectrometry, indicated that the reaction proceeded via an associative formate mechanism; this contributes to the high Au/CeO₂ catalytic activity at low temperatures.
- CO₂ reduction,
- Au/CeO₂ catalyst,
- Carbon monoxide,
- Formate intermediate,
- In situ DRIFT spectroscopy
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Selective reduction of carbon dioxide to carbon monoxide over Au/CeO2 catalyst and identification of reaction intermediate

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通讯作者: 陈斌, bchen63@163.com

Selective reduction of carbon dioxide to carbon monoxide over Au/CeO₂ catalyst and identification of reaction intermediate