| PW_(12)O_(40)~(3-)-ZrO2微孔杂化材料多相催化合成碳酸丙烯酯 |
| |
| 引用本文： | 姜春杰,张剑锋.PW_(12)O_(40)~(3-)-ZrO2微孔杂化材料多相催化合成碳酸丙烯酯[J].北华大学学报(自然科学版),2004(5). |
| |
| 作者姓名： | 姜春杰 张剑锋 |
| |
| 作者单位： | 北华大学师范理学院，北华大学师范理学院 吉林吉林 132033，吉林吉林 132033 |
| |
| 摘 要： | 采用溶胶 凝胶方法制备了Keggin结构PW12O3-40 ZrO2微孔杂化材料,并通过N2吸附等温数据测定、原子发射光谱(ICP AES)、吡啶吸附傅立叶变换红外光谱(FTIR)、固体核磁共振波谱(MASNMR)等测试手段对其结构进行了表征.结果表明,杂化材料中的Keggin结构阴离子仍然保留其基本骨架结构,并与ZrO2载体之间存在着较强的化学作用.制得的PW12O3-40 ZrO2复合材料能在温和条件下高选择性、高效率地催化合成碳酸丙烯酯.
|
| 关 键 词： | 多金属氧酸盐 微孔杂化材料 溶胶凝胶 碳酸丙烯酯 环加成 |
Synthesis of Propylene Carbonate Catalyzed by Keggin-type PW_(12)O~(3-)_(40)-ZrO2 Microporous Materials |
| |
| JIANG Chun-jie,ZHANG Jian-feng.Synthesis of Propylene Carbonate Catalyzed by Keggin-type PW_(12)O~(3-)_(40)-ZrO2 Microporous Materials[J].Journal of Beihua University(Natural Science),2004(5). |
| |
| Authors: | JIANG Chun-jie ZHANG Jian-feng |
| |
| Abstract: | Zirconia-supported the Keggin anions PW_(12)O~(3-)_(40) microporous materials were prepared by the method of sol-gel method. Retention of the structure integrity of the starting PW_(12)O~(3-)_(40) in the as-synthesized composites was confirmed by FT-IR, solid state NMR, and ICP-AES. Also it was shown from the results that the strong chemical interactions between PW_(12)O~(3-)_(40) anions and zirconia networks existed in the composites. Selective synthesis of Propylene Carbonate from Propylene oxide and CO_2 was investigated in the presence of PW_(12)O~(3-)_(40)-ZrO_2 catalysts under mild condition. |
| |
| Keywords: | Polyoxometalates Microporous materials Sol-gel Propylene Carbonate Cycloaddition |
| 本文献已被 CNKI 等数据库收录！ |
