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PW/SBA-15负载型催化剂的性能研究
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.
作者姓名:张雪峥  乐英红  高滋
作者单位:复旦大学化学系,
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
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。

关 键 词:SBA-14分子筛  磷钨杂多酸  酸性  催化活性  负载型催化剂  制备  热稳定性
文章编号:0251-0790(2001)07-1169-04

Studies on 12-Tungstophosphoric Heteropolyacid Supported SBA-15 Catalysts
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.
Authors:ZHANG Xue Zheng  YUE Ying Hong  GAO Zi
Institution:ZHANG Xue Zheng,YUE Ying Hong,GAO Zi *
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.
Keywords:SBA  15 molecular sieve  12  Tungstophosphoric acid  Acidity  Catalytic activity
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