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微量吸附量热技术在ZnxCo1-xCr2O4催化剂筛选上的应用

Application of the Microcalorimetric Adsorption Technique on Screening of ZnxCo1-xCr2O4 Catalysts

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【作者】 张晓丰杨胥微周静王艳力张文祥吴通好

【Author】 ZHANG Xiao-feng*1,3,YANG Xu-wei1,ZHOU Jing2,WANG Yan-li1,ZHANG Wen-xiang1,WU Tong-hao1(1.College of Chemistry,Jilin University,Changchun 130021;2.Norman Bethune Medical School,Jilin University,Changchun 130021;3.Jilin Province Design and Research Institute forPetrochemical Engineering,Changchun 130021)

【机构】 吉林大学化学学院吉林省石油化工设计研究院吉林大学白求恩医学院

【摘要】 采用共沉淀法制备了一系列ZnxCo1-xCr2O4催化剂,并将其进行了微量吸附量热技术测定,及苯酚与甲醇邻位烷基化反应的应用性实验。结果证明,ZnxCo1-xCr2O4催化剂上苯酚和甲醇邻位烷基化反应的活性中心应是酸碱的协同作用产生的,ZnxCo1-xCr2O4系列催化剂中的Zn/Co的最佳比例为Zn/Co=1。运用微量吸附量热技术实现了对ZnxCo1-xCr2O4系列催化剂的优化。

【Abstract】 A series of ZnxCo1-xCr2O4 catalysts were prepared by co-precipitation method,and they were measured by microcalorimetric adsorption technique.In addition,the applied experiments of ortho-selective alkylation of phenol with methanol were performed.The results show that ortho-selective alkylation active centers of phenol with methanol on ZnxCo1-xCr2O4 catalysts are produced by synergistic effects of acidities and basicities.Moreover,the best composition ratio of Zn/Co in ZnxCo1-xCr2O4 catalysts is 1∶1.

【基金】 国家自然科学基金(No.20403006);吉林省科技发展规划项目(No.20040563)
  • 【文献出处】 分析科学学报 ,Journal of Analytical Science , 编辑部邮箱 ,2009年03期
  • 【分类号】O643.3
  • 【下载频次】119
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