| 碳纳米管负载的铂催化剂对柠檬醛选择加氢及CO微分吸附热研究 |
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| 引用本文： | 张耀君,李聚源,李文震,辛勤.碳纳米管负载的铂催化剂对柠檬醛选择加氢及CO微分吸附热研究[J].高等学校化学学报,2005,26(7):1345-1347. |
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| 作者姓名： | 张耀君 李聚源 李文震 辛勤 |
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| 作者单位： | 1. 西安交通大学动力工程多相流国家重点实验室,西安710049;
2. 西安石油大学化学化工学院,西安710065;
3. 中国科学院大连化学物理研究所催化基础国家重点实验室,大连116023 |
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| 基金项目： | 教育部留学回国人员科研启动基金;陕西省自然科学基金 |
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| 摘 要： | 碳纳米管(CNTs)是近年来发现的一种新型催化剂载体材料，将其作为α，β-不饱和醛的选择加氢的研究则报道较少．本文对柠檬醛Citral，3，7-二甲基-2，6-辛二烯醛(3，7-Dimethyl-2，6-octadienal)]在Pt／CNTs和Pt／XC-72催化剂作用下的液相选择加氢进行了探索性研究．结果发现，碳纳米管(CNTs)负载的Pt催化剂具有生成不饱和醇的高选择性．
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| 关 键 词： | 柠檬醛选择加氢 CO微分吸附热 Pt/CNTs催化剂 |
| 文章编号： | 0251-0790(2005)07-1345-03 |
| 收稿时间： | 2004-08-10 |
Pt Catalyst Supported on Carbon Nanotubes for Selective Hydrogenation of Citral and Differential Heats of CO Adsorption |
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| ZHANG Yao-Jun,LI Ju-yuan,LI Wen-zhen,XIN Qin.Pt Catalyst Supported on Carbon Nanotubes for Selective Hydrogenation of Citral and Differential Heats of CO Adsorption[J].Chemical Research In Chinese Universities,2005,26(7):1345-1347. |
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| Authors: | ZHANG Yao-Jun LI Ju-yuan LI Wen-zhen XIN Qin |
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| Institution: | 1. State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an 710049, China;
2. College of Chemistry and Chemical Engineering, Xi'an Petroleum University, Xi'an 710065, China;
3. State Key Laboratory of Catalysis Basis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China |
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| Abstract: | Carbon nanotube is found to be a novel support for the selective hydrogenation of citral in this paper. Selective hydrogenation of citral was carried out in an autoclave at 5 MPa and 323 K. The results indicate that the selectivity of the products, unsaturated alcohols, is about 86 over Pt/CNTs catalyst and 48 over Pt/XC-72 catalyst, respectively. The differential heat of CO adsorption measured by microcalorimetry is firstly used to probe surface adsorption sites of platinum catalyst supported on carbon nanotubes. The experimental results indicate that the Pt/CNTs catalyst shows a higher initial differential heat of CO adsorption(126 kJ/mol) than the Pt/XC-72 catalyst(106 kJ/mol). |
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| Keywords: | Selective hydrogenation of citral Differential heats of CO adsorption Pt catalyst supported on carbon nanotubes |
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