| 共沉淀型Cu-ZnO/Al2O3甘油加氢催化剂结构变化研究 |
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| 引用本文： | 李廷真,付川,祁俊生,赖庆轲.共沉淀型Cu-ZnO/Al2O3甘油加氢催化剂结构变化研究[J].四川三峡学院学报,2013(3):92-94. |
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| 作者姓名： | 李廷真 付川 祁俊生 赖庆轲 |
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| 作者单位： | 重庆三峡学院化学与环境工程学院,重庆万州404100 |
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| 基金项目： | 重庆市教委自然科学基金项目（KJ08112）; 重庆三峡学院人才引进科研项目（2007-SXXYRC-010） |
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| 摘 要： | 利用N2物理吸附、XRD和空气热重对Cu-ZnO/Al2O3甘油加氢催化剂在制备过程中物相结构的变化进行了系统的研究.研究结果表明,干燥后催化剂主要由Cu2Zn4Al2（OH）16CO3 4H2O和Cu2（OH）2CO3物相组成,经过600℃焙烧4 h后,催化剂在沉淀过程中生成的Cu2Zn4Al2（OH）16CO3 4H2O和Cu2（OH）2CO3全部分解为CuO.在500℃催化剂具有最大的比表面积（79 m^2/g）和孔容（0.36 cm^3/g）.
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| 关 键 词： | 甘油 脱氢 共沉淀 物相组成 |
A Study on Phase Transformation During the Preparation of a Co-Precipitated Cu-ZnO/Al/O3 Glycerol Hydrogenation Catalyst |
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| LI Tingzhen,FU Chuan,QI Junsheng,LAI Qingke.A Study on Phase Transformation During the Preparation of a Co-Precipitated Cu-ZnO/Al/O3 Glycerol Hydrogenation Catalyst[J].Journal of Chongqing Three-gorges University,2013(3):92-94. |
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| Authors: | LI Tingzhen FU Chuan QI Junsheng LAI Qingke |
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| Institution: | (School of Chemistry ＆ Environmental Engineering, Chongqing Three Georges University, Wanzhou, Choneqine 404100) |
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| Abstract: | A systematic study was undertaken to investigate the effects of the calcination temperature on the textural properties, phase compositions of a co-precipitated Cu-ZnO/Al2O3 glycerol hydrogenation catalyst. The catalyst samples were characterized by N2 physisorption, X-ray diffraction （XRD）, and air thermal gravimetric analysis （air-TGA）. The characterization results indicated that the calciantion temperature has a significant effect on the catalyst textural properties and phase compositions. After dryness, the catalyst sample is mainly composed of Cu2（OH）2CO3 and Cu2Zn4Al2（OH）16CO3·4H2O. However, after the calcination at 600℃, the phases of Cu2（OH）2CO3 and Cu2Zn4Al2（OH）16CO3·4H2O formed during the precipitation are all transformed to CuO. The catalyst calcined at 500 ℃ has the highest BET surface area （79 m^2/g） and pore volume （0.36 cm^3/g）. |
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| Keywords: | glycerol dehydrogenation co-precipitation phase composition |
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