| PW/SBA-15负载型催化剂的性能研究 |
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| 引用本文： | 张雪峥,乐英红,高滋. PW/SBA-15负载型催化剂的性能研究[J]. 高等学校化学学报, 2001, 22(7): 1169-1172 |
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| 作者姓名： | 张雪峥 乐英红 高滋 |
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| 作者单位： | 复旦大学化学系, 上海 200433 |
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| 基金项目： | 国家重点基础研究发展规划项目 (批准号 :G2 0 0 0 0 775 0 0 )，高等学校骨干教师资助计划资助 |
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| 摘 要： | 合成、表征了一系列SBA-15负载H3PW12O40(PW)催化剂.负载量高达60%以上时,XRD仍未检测到催化剂上有PW晶相峰.负载后PW保持其Keggin结构,但与载体之间存在较强的相互作用.通过改变PW负载量可调变催化剂的酸性,制得适用于中强酸和弱酸性催化反应的介孔固体酸催化剂.
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| 关 键 词： | SBA-15分子筛 磷钨杂多酸 酸性 催化活性 |
| 文章编号： | 0251-0790(2001)07-1169-04 |
| 收稿时间： | 2000-06-30 |
Studies on 12-Tungstophosphoric Heteropolyacid Supported SBA-15 Catalysts |
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| ZHANG Xue Zheng,YUE Ying Hong,GAO Zi. Studies on 12-Tungstophosphoric Heteropolyacid Supported SBA-15 Catalysts[J]. Chemical Research In Chinese Universities, 2001, 22(7): 1169-1172 |
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| Authors: | ZHANG Xue Zheng YUE Ying Hong GAO Zi |
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| Affiliation: | Department of Chemistry, Fudan University, Shanghai 200433, China |
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| Abstract: | A series of SBA 15 supported H 3PW 12 O 40 (PW) catalysts were prepared and characterized. PW crystal phase was not observed in XRD patterns at PW loading as high as 60%. PW dispersed on the supports retains its Keggin structure, but a strong chemical interaction between PW and SBA 15 supports is present. The activity of the catalysts can be adjusted by varying PW loading. PW/SBA 15 catalysts are promising mesoporous solid acid catalysts for medium strong and weak acid catalyzed reactions. |
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| Keywords: | SBA 15 molecular sieve 12 Tungstophosphoric acid Acidity Catalytic activity |
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