| 有机添加剂对合成山梨醇用钌催化剂的表面修饰作用 |
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| 引用本文： | 徐三魁,王向宇,梁丽珍.有机添加剂对合成山梨醇用钌催化剂的表面修饰作用[J].化学世界,2007,48(4):193-195,220. |
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| 作者姓名： | 徐三魁 王向宇 梁丽珍 |
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| 作者单位： | 1. 河南工业大学,材料工程学院,河南,郑州,450007
2. 郑州大学,工业催化研究所,河南,郑州,450052 |
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| 基金项目： | 河南省科技攻关项目(0424270090)，河南省教育厅自然科学基金项目(200511327005) |
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| 摘 要： | 用浸渍及甲醛还原法制备了Ru/C催化剂,考察了催化剂制备过程中加入有机助剂对催化剂性能的影响,在0.5 MPa下测得葡萄糖加氢生成山梨醇的催化活性、选择性和稳定性,用分光光度法考察了RuCl3在活性炭上的吸附量和吸附强度,运用程序升温还原TPR(temperature programmedreduction)技术,研究了催化剂的表面还原性质,并将其结果与葡萄糖加氢的催化活性相关联。结果表明,加入有机助剂不仅能增加Ru的吸附量和吸附强度,改善催化剂的表面性能,并明显提高了催化剂的活性、选择性和稳定性。
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| 关 键 词： | 钌碳催化剂 葡萄糖 加氢 山梨醇 程序升温还原 |
| 文章编号： | 0367-6358（2007）04-193-03 |
| 修稿时间： | 2006-10-172007-01-30 |
The Surface Modification Effect of Organic Promoters on Ru/C Catalysts for Synthesis of Sorbitol from Hydrogenation of Glucose |
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| XU San-kui,WANG Xiang-yu,LIANG Li-zhen.The Surface Modification Effect of Organic Promoters on Ru/C Catalysts for Synthesis of Sorbitol from Hydrogenation of Glucose[J].Chemical World,2007,48(4):193-195,220. |
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| Authors: | XU San-kui WANG Xiang-yu LIANG Li-zhen |
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| Affiliation: | 1. College of Material Engineering, Henan University of Technology, Henan Zhengzhou 450007, China ; 2. Institute of Industrial Catalysis, Zhengzhou University, Henan Zhengzhou 450052, China |
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| Abstract: | The Ru/C catalysts employed to produce sorbitol from hydrogenation of glucose were studied.Ru/C catalysts were prepared by impregnation of C support with RuCl_3 solution followed by reduction with HCHO solution.The influence of organic promoters on properties of Ru/c catalyst was investigated.The activity and TPR characteristics of the catalysts were tested.The absorption amount and absorption strength of RuCl_3 on carbon were determined by spectrophotometry.The results show that the addition of organic promoters not only increases the absorption amount of ruthemium,but also increases the absorption strength of ruthenium on the support,and result in improves the surface properties of Ru/C catalysts and enhances the catalytic hydrogenation activity. |
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| Keywords: | Ru/C catalyst glucose hydrogenation sorbitol TPR |
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