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题名: Chemical reactivity and thermal stability of nanometric alkali metal hydrides
作者: Fan, Yinheng;  Li, Weina;  Zou, Yunling;  Liao, Shijian;  Xu, Jie
通讯作者: Yinheng Fan
关键词: nanometric alkali metal hydrides ;  thermal stability ;  chemical reactivity ;  catalytic hydrogenation ;  hydrodechlorination ;  selective reduction ;  nanoengineering
刊名: JOURNAL OF NANOPARTICLE RESEARCH
发表日期: 2006-12-01
DOI: 10.1007/s11051-005-9064-3
卷: 8, 期:6, 页:935-942
收录类别: SCI
文章类型: Article
部门归属: 2
项目归属: 204
产权排名: 2;4
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Multidisciplinary ;  Nanoscience & Nanotechnology ;  Materials Science, Multidisciplinary
研究领域[WOS]: Chemistry ;  Science & Technology - Other Topics ;  Materials Science
英文摘要: The chemical reactivities of nano-NaH particles were compared with those of the commercial ones in three test reactions. Large specific surface areas of these nanoparticles are the main factor for their extremely high reactivity in comparison with their commercial counterpart when these particles are used as a chemical reagent. However, when nano-NaH is used as a cocatalyst with Cp2TiCl2, activated surface with high surface energy seems to be the main factor for its high catalytic activity. The thermal stability and chemical reactivity of nanoparticles of lithium hydride, sodium hydride and potassium hydride have been studied. The average particle sizes of lithium, sodium and potassium hydrides before heat treatment are 22, 23 and 19 nm, respectively. Catalytic hydrogenation of olefins and hydrodechlorination of chlorobenzene were employed as test reactions for the chemical reactivities of these nanoparticles treated at different temperatures. The nanoparticles grow with the increase of heat treatment temperature, and the BET specific surface areas decrease simultaneously. An activation of the nanometric hydride surface is evident via the heat treatment under suitable temperatures.
关键词[WOS]: SODIUM HYDRIDE ;  REDUCTION ;  TEMPERATURE ;  HALIDES ;  LITHIUM ;  SIZE ;  LIH ;  NAH ;  KH
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000242326900014
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/98941
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.Liaoning Normal Univ, Sch Chem & Chem Engn, Dalian 116029, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China

Recommended Citation:
Fan, Yinheng,Li, Weina,Zou, Yunling,et al. Chemical reactivity and thermal stability of nanometric alkali metal hydrides[J]. JOURNAL OF NANOPARTICLE RESEARCH,2006,8(6):935-942.
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