| Pd/PdO在MCM-41介孔材料孔表面的溶液移植 |
| |
| 引用本文： | 禹剑,施剑林,王连洲. Pd/PdO在MCM-41介孔材料孔表面的溶液移植[J]. 化学学报, 2000, 58(2): 157-161 |
| |
| 作者姓名： | 禹剑 施剑林 王连洲 |
| |
| 作者单位： | 中国科学院上海硅酸盐研究所 |
| |
| 基金项目： | 中国博士后科学基金，上海市博士后科学基金，国家自然科学基金(59882007)资助项目 |
| |
| 摘 要： | 利用PdCl~2溶液与介孔结构硅酸铝合成原粉反应,把Pd/PdO多用途催化剂移植到MCM-41材料孔表面。产物用XRD,热分析(TG/DTA),TEM,N~2吸附及FT-IR光谱等手段进行表征。结果表明,钯经由Si-O-Pd键负载在硅酸铝骨架及孔表面上。在有序介孔材料外表面沿着孔道方向粘附着直径为10-30nm的Pd/PdO晶粒。研究表明,采用这种液相移植的方法可以有效负载金属催化剂,并防止孔道堵塞。
|
| 关 键 词： | 钯 氧化钯 硅酸铝 Ｘ射线衍射分析 热重量分析 扫描电子显微镜 介孔材料 溶液移植 |
| 修稿时间： | 1999-03-04 |
Solution-phase grafting of Pd/PdO onto the pore surface of MCM-41 mesoporous molecular sieves |
| |
| YU Jian,SHI Jian-Lin,WANG Lian-Zhou,RUAN Mei-Ling,YAN Dong-Sheng. Solution-phase grafting of Pd/PdO onto the pore surface of MCM-41 mesoporous molecular sieves[J]. Acta Chimica Sinica, 2000, 58(2): 157-161 |
| |
| Authors: | YU Jian SHI Jian-Lin WANG Lian-Zhou RUAN Mei-Ling YAN Dong-Sheng |
| |
| Affiliation: | YU Jian,SHI Jian-Lin,WANG Lian-Zhou,RUAN Mei-Ling,YAN Dong-Sheng(State Key Laboratory on High Performance Ceramics and Superfine Microstructure, Shanghai trance of Ceramics,Chinese Academy of Sciences, Shanghai, 200050) |
| |
| Abstract: | Pd/PdO, a versatile catalyst, has been grafted onto the pore surface of MCM - 41 by reacting PdCl2 solution with the as - synthesized mesostructured aluminosilicate. The products have been characterized by powder XRD, thermal analysis (TG/DTA), TEM, N2 adsorption and FT- IR spectroscopies. It was found that palladium is loaded onto the aluminosilicate walls via Si-O-Pd bonds. A second phase consisting of Pd/PdO crystallites ranged from 10 to 30nm in diameter on the external surface of the mesoporous aluminosilicate materials was obtained. It is concluded that clogging of channels with Pd/PdO is avoided by introducing the reagent when surfactant is still present in the mesopores. |
| |
| Keywords: | palladium mesoporous grafting |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《化学学报》浏览原始摘要信息 |
|
点击此处可从《化学学报》下载全文 |
|
