|
|||||
|
|
| Co-Cu/SiO2催化剂的表征 | |
| 引用本文： | 刘炳华,上官荣昌,沈俭一.Co-Cu/SiO2催化剂的表征[J].分子催化,2009,23(4). |
| 作者姓名： | 刘炳华 上官荣昌 沈俭一 |
| 作者单位： | 1. 淮阴师范学院,化学系,江苏省低维材料化学重点建设实验室,江苏,淮安,223300;南京大学,化学系,介观化学教育部重点实验室,江苏,南京,210093 2. 淮阴师范学院,化学系,江苏省低维材料化学重点建设实验室,江苏,淮安,223300 3. 南京大学,化学系,介观化学教育部重点实验室,江苏,南京,210093 |
| 基金项目： | 国家自然科学基金(No20373023);;科技部国际合作基金(No2004DFB02900)资助项目 |
| 摘 要： | 用溶胶-凝胶法制备了Co-Cu/SiO2系列的担载型催化剂,采用SBET、TPR、XRD、O2滴定等技术对该催化剂进行了研究,并考察了催化剂在F-T合成反应中的催化性能.结果表明,样品的SBET较大,Co和Cu组分均很好分散;Cu2+的加入使得Co更易于被氢气还原,Co是经由Co3+→Co2+→Co0的还原过程,Cu的还原为Cu2+→Cu0;Cu2+的引入使得样品中钴的还原度增大,对F-T合成的催化性能有了一定的改善. |
| 关 键 词： | Co-Cu/SiO2催化剂 TPR XRD O2滴定 F-T合成 |
Characterization of Co-Cu/SiO2 Catalysts |
|
| LIU Bing-hua,SHANG GUAN Rong-chang,SHEN Jian-yi.Characterization of Co-Cu/SiO2 Catalysts[J].Journal of Molecular Catalysis (China),2009,23(4). | |
| Authors: | LIU Bing-hua SHANG GUAN Rong-chang SHEN Jian-yi |
| Institution: | 1. Jiangsu Key Laboratory for Chemistry of Low-Dimensional Materials;Department of Chemistry;Huaiyin Teachers College;Huaian 223000;China;2. Department of Chemistry;Nanjing University;Nanjing 210093;China |
| Abstract: | In this study, the catalysts of Co-Cu/SiO2 series were prepared by sol-gel method, and were characterized by the techniques of TPR, XRD, the titration of O2 and the measurement of the specific area of BET (SBET). Their catalytic performance for F-T synthesis was also investigated. The experimental results showed that the dispersion of the components of cobalt and copper supported on SiO2 were all well.The results of O2 titration indicated that due to the existence of Cu2+ in the samples of Co-Cu/SiO2 the re... |
| Keywords: | Co-Cu/SiO2 catalysts TPR XRD O2 titration F-T synthesis |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |
| 点击此处可从《分子催化》浏览原始摘要信息 | |
| 点击此处可从《分子催化》下载免费的PDF全文 | |