碱土金属添加剂对Cu-ZnO/SiO2催化仲丁醇脱氢反应性能的影响

J4 ›› 2011, Vol. 49 ›› Issue (03): 540-543.

碱土金属添加剂对Cu-ZnO/SiO₂催化仲丁醇脱氢反应性能的影响

单洪岩, 宇博

吉林大学测试科学实验中心, 长春 130021

收稿日期:2010-06-29 出版日期:2011-05-26 发布日期:2011-06-15
通讯作者: 单洪岩 E-mail:shanhy@jlu.edu.cn

Effect of AlkalineEarth Metal Mg on Cu-ZnO/SiO₂Catalysts in Dehydrogenation of 2Butanol

SHAN Hongyan, YU Bo

Experimental Center of Testing Science, Jilin University, Changchun 130021, China

Received:2010-06-29 Online:2011-05-26 Published:2011-06-15
Contact: SHAN Hongyan E-mail:shanhy@jlu.edu.cn

摘要/Abstract

摘要：

采用碱土金属Mg对SiO₂进行预处理后, 用浸渍法制备Cu-ZnO/MgO-SiO₂催化剂. 研究不同质量分数Mg对催化剂的结构和性能的影响, 考察该催化剂对仲丁醇脱氢活性和选择性的影响. 采用XRD,TPD和TPR对催化剂进行表征. 实验结果表明, Mg的加入提高了Cu组分的分散度, 同时降低了催化剂表面的酸性. 调节合适的Mg质量分数可获得性能较佳的仲丁醇脱氢催化剂.

关键词: 碱土金属, Cu-ZnO/MgO-SiO₂催化剂；仲丁醇；脱氢

Abstract:

A series of Cu-ZnO/MgO-SiO₂ catalysts were prepared via impregnation method with the support SiO₂ modified by different contents of Mg and examined in dehydrogenation of 2butanol. The effects of content of Mg on the structure and property of the catalysts were characterized by means of XRD, TPD and TPR technologies. The results indicate that the content of Mg can improve the dispersion of copper and the acid property of the catalysts. So, the appropriate content of Mg can improve the activity performance of Cu-ZnO/MgO-SiO₂ catalysts.

Key words: alkalineearth metal, Cu-ZnO/MgO-SiO₂ catalyst, 2butanol, dehydrogenation

中图分类号:

O643.38

单洪岩, 宇博. 碱土金属添加剂对Cu-ZnO/SiO₂催化仲丁醇脱氢反应性能的影响[J]. J4, 2011, 49(03): 540-543.

CHAN Hong-Yan, YU Bo. Effect of AlkalineEarth Metal Mg on Cu-ZnO/SiO₂Catalysts in Dehydrogenation of 2Butanol[J]. J4, 2011, 49(03): 540-543.

碱土金属添加剂对Cu-ZnO/SiO₂催化仲丁醇脱氢反应性能的影响

Effect of AlkalineEarth Metal Mg on Cu-ZnO/SiO₂Catalysts in Dehydrogenation of 2Butanol

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