| MoO_3对Ni/Sepiolite加氢催化剂的改性研究(英文) |
| |
| 引用本文： | 李松军,罗来涛,李凤仪.MoO_3对Ni/Sepiolite加氢催化剂的改性研究(英文)[J].天然气化学杂志,2001,10(3):223-230. |
| |
| 作者姓名： | 李松军 罗来涛 李凤仪 |
| |
| 作者单位： | 南昌大学应用化学研究所，南昌大学应用化学研究所，南昌大学应用化学研究所 江西 南昌 330047，江西 南昌 330047，江西 南昌 330047 |
| |
| 基金项目： | This project is supported by the National Natural Science Foundation of China (No.29863002). |
| |
| 摘 要： | 用浸渍法制备了一系列镍基催化剂并以苯加氢反应及二硫化碳中毒为手段考查了ＭｏＯ３对Ｎｉ基催化剂的改性机制。结果表明，钼的加入能增加Ｎｉ催化剂的催化活性和抗二硫化碳毒性，原因是钼的加入增加了催化剂的活性中心数量和镍的分散度，改变了催化剂与反应物所形成中间体的活化焓及熵。根据过渡态理论，钼对Ｎｉ基催化剂的影响即有电子效应又有几何效应，但以电子效应为主。
|
| 关 键 词： | 钼 镍催化剂 海泡石 改性 |
STUDY ON MODIFICATION OF MoO3 FOR Ni/SEPIOLITE HYDROGENATION CATALYSTS |
| |
| Songjun Li,Laitao Luo,Fengyi Li.STUDY ON MODIFICATION OF MoO3 FOR Ni/SEPIOLITE HYDROGENATION CATALYSTS[J].Journal of Natural Gas Chemistry,2001,10(3):223-230. |
| |
| Authors: | Songjun Li Laitao Luo Fengyi Li |
| |
| Institution: | Li Songjun;Luo Laitao;Li Fengyi Institute of Applied Chemistry of Nangchang University Nanchang Jiangxi 330047 |
| |
| Abstract: | A series of catalysts containing nickel are prepared by impregnation and the influence of MoO3 on Ni/sepiolite catalysts is investigated by benzene hydrogenation reaction and CS2 poisoning. The results reveal that the addition of molybdenum increases the activity of hydrogenation and the number of active sites and reduces the activation enthalpy and activation entropy of the intermediate formed by catalyst and reactant. In the point of the transitional state theory, the results also reveal that the influence of MoO3 on the catalyst includes steric effect and electronic effect, whereas the electronic effect seems to be principal. |
| |
| Keywords: | molybdenum Ni-catalyst sepiolite modification hydrogenation benzene poison CS2 |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《天然气化学杂志》浏览原始摘要信息 |
| 点击此处可从《天然气化学杂志》下载免费的PDF全文 |
