Citation: Liao Xue-Mei, Pitchon Veronique, Cuong Pham-Huu, Chu Wei, Caps Valerie. Hydrogenation of cinnamaldehyde over bimetallic Au-Cu/CeO₂ catalyst under a mild condition[J]. Chinese Chemical Letters, ;2017, 28(2): 293-296. doi: 10.1016/j.cclet.2016.06.043 shu

Hydrogenation of cinnamaldehyde over bimetallic Au-Cu/CeO₂ catalyst under a mild condition

a.
College of Food and Biological Engineering, Xihua University, Chengdu 610039, China
b.
ICPEES, L'Institut de Chimie et Procedes pour l'energie, l'environnement et la santé, Université de Strasbourg, Strasbourg 67087, France
c.
Department of Chemical Engineering, Sichuan University, Chengdu 610065, China

Corresponding author: Liao Xue-Mei, xmliao@mail.xhu.edu.cn Caps Valerie, caps@unistra.fr
Received Date: 28 April 2016
Revised Date: 14 June 2016
Accepted Date: 24 June 2016
Available Online: 1 February 2016

Figures(2)

Bimetallic Au_xCu_y/CeO₂ (x/y=3/1, 1/1, and 1/3) catalysts were prepared by direct anion exchange (DAE), following impregnation (IMP) methods, and used for selective hydrogenation of cinnamaldehyde. The effects of pretreatments, such as calcination or reduction on the catalytic activities of these catalysts were investigated. XRD and HRTEM showed that for the reduced catalysts, there is the formation of an Au-Cu alloy. HAADF-STEM displayed that reduction pretreatment leads to a very homogenous distribution of Au and Cu on the external catalyst surface. Reaction parameters, such as CAL concentration, the stirring speed, nature of the solvent influence the catalytic activities. Pretreatments lead to a major effect on CAL conversion and HCAL selectivity. Catalysts Au_xCu_y/CeO₂pretreated under reduction display higher CAL conversion and HCAL selectivity than that of under calcination mainly due to the synergistic effect resulting in a formation of Au-Cu alloy.
- Hydrogenation of cinnamaldehyde,
- Bimetallic Au-Cu catalysts,
- Reduction or calcination,
- Distribution,
- Alloy
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通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Hydrogenation of cinnamaldehyde over bimetallic Au-Cu/CeO2 catalyst under a mild condition

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通讯作者: 陈斌, bchen63@163.com

Hydrogenation of cinnamaldehyde over bimetallic Au-Cu/CeO₂ catalyst under a mild condition