Chemical reactivity and thermal stability of nanometric alkali metal hydrides

	Chemical reactivity and thermal stability of nanometric alkali metal hydrides
	Fan, Yinheng ; Li, Weina ; Zou, Yunling ; Liao, Shijian ; Xu, Jie
刊名	journal of nanoparticle research
	2006-12-01
卷号	8 期号:6 页码:935-942
关键词	nanometric alkali metal hydrides thermal stability chemical reactivity catalytic hydrogenation hydrodechlorination selective reduction nanoengineering
通讯作者	yinheng fan
产权排序	2;4
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.
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
关键词[WOS]	sodium hydride ; reduction ; temperature ; halides ; lithium ; size ; lih ; nah ; kh
收录类别	SCI
原文出处	true
语种	英语
WOS记录号	WOS:000242326900014
公开日期	2010-11-30
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/98941]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
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
推荐引用方式 GB/T 7714	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.
APA	Fan, Yinheng,Li, Weina,Zou, Yunling,Liao, Shijian,&Xu, Jie.(2006).Chemical reactivity and thermal stability of nanometric alkali metal hydrides.journal of nanoparticle research,8(6),935-942.
MLA	Fan, Yinheng,et al."Chemical reactivity and thermal stability of nanometric alkali metal hydrides".journal of nanoparticle research 8.6(2006):935-942.