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题名: Effect of steam on the acid strength of H3PW12O40/SiO2 center dot nH(2)O and its application in skeletal isomerization of n-butane
作者: He, SB;  Liu, XP;  Xie, SJ;  Wang, QX;  Xu, YD;  Xu, LY
关键词: HPW/SiO2 ;  nH(2)O ;  acid strength ;  addition of steam ;  skeletal isomerization of n-butane
刊名: CATALYSIS COMMUNICATIONS
发表日期: 2003-11-01
DOI: 10.1016/j.catcom.2003.09.001
卷: 4, 期:11, 页:585-590
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Physical
研究领域[WOS]: Chemistry
英文摘要: The effect of steam on the acid strength of H3PW12O40 (HPW)/SiO2 . nH(2)O was determined by the Hammett indicators. When the steam content in N-2 was 1.6%, the acidity (H-0 > -13.7) of HPW/SiO2 . nH(2)O could be kept for over 10 h at 300 degreesC, but for only 2 h when steam was lacking. When it was used as a catalyst for skeletal isomerization of n-butane to isobutane at 300 degreesC, the HPW/SiO2 . nH(2)O showed stability in the presence of steam (1.6% in feed) better than that without steam, due to a suppression of the loss of crystalline water. (C) 2003 Elsevier B.V. All rights reserved.
关键词[WOS]: HETEROPOLY COMPOUNDS ;  CATALYSTS
语种: 英语
WOS记录号: WOS:000186654500006
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/139273
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China

Recommended Citation:
He, SB,Liu, XP,Xie, SJ,et al. Effect of steam on the acid strength of H3PW12O40/SiO2 center dot nH(2)O and its application in skeletal isomerization of n-butane[J]. CATALYSIS COMMUNICATIONS,2003,4(11):585-590.
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