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| 微量吸附量热技术在ZnxCo1-xCr2O4催化剂筛选上的应用 | |
| 引用本文： | 张晓丰,杨胥微,周静,王艳力,张文祥,吴通好.微量吸附量热技术在ZnxCo1-xCr2O4催化剂筛选上的应用[J].分析科学学报,2009,25(3). |
| 作者姓名： | 张晓丰 杨胥微 周静 王艳力 张文祥 吴通好 |
| 作者单位： | 1. 吉林大学化学学院,吉林长春,130021;吉林省石油化工设计研究院,吉林长春,130021 2. 吉林大学化学学院,吉林长春,130021 3. 吉林大学白求恩医学院,吉林长春,130021 |
| 基金项目： | 国家自然科学基金，吉林省科技发展规划项目 |
| 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。 |
| 关 键 词： | 微量吸附量热 铬酸钴 酸中心 碱中心 |
Application of the Microcalorimetric Adsorption Technique on Screening of ZnxCo1-xCr2O4 Catalysts |
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| ZHANG Xiao-feng,YANG Xu-wei,ZHOU Jing,WANG Yan-li,ZHANG Wen-xiang,WU Tong-hao.Application of the Microcalorimetric Adsorption Technique on Screening of ZnxCo1-xCr2O4 Catalysts[J].Journal of Analytical Science,2009,25(3). | |
| Authors: | ZHANG Xiao-feng YANG Xu-wei ZHOU Jing WANG Yan-li ZHANG Wen-xiang WU Tong-hao |
| Institution: | 1.College of Chemistry;Jilin University;Changchun 130021;2.Norman Bethune Medical School;3.Jilin Province Design and Research Institute forPetrochemical Engineering;Changchun 130021 |
| 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 |
| Keywords: | Microcalorimetric adsorption CoCr2O4 Acid site Base site |
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