LiCl/γ-Al_2O_3的~7Li MAS NMR研究

doi:10.3866/PKU.WHXB19970302

CORC > 北京大学 > 化学与分子工程学院

	LiCl/γ-Al_2O_3的~7Li MAS NMR研究; Li-7 MAS NMR Studies on LiCl/gamma-Al2O3
	王凯旋 ; 杨夏万 ; 赵璧英 ; 谢有畅 ; 孙平川 ; 门爱菊
刊名	物理化学学报
	1997
关键词	LiCl／γ－Al_2O_3 LiCl/gamma-Al2O3 Sponteneous monolayer dispersion Solid state NMR 2D nutation NMR spectra Qudrupole interaction 自发单层分散固体NMR 二维章动NMR谱四极相互作用
DOI	10.3866/PKU.WHXB19970302
英文摘要	A Series of LiCl/γ-Al2O3 samples were prepared by mixing and then heating at 400℃ for 30 hours. 7Li MAS NMR was used to investigated their structures. The 7Li MAS NMR signal of LiCl in the dispersion phase was observed for the first time, and its chemical shift was at 0.25ppm.After the dispersion th...; A Series of LiCl/gamma-Al2O3 samples were prepared by mixing and then heating at 400 degrees C for 30 hours. Li-7 MAS NMR was used to investigated their structures. The Li-7 MAS NMR signal of LiCl in the dispersion threshold of LiCl on LiCl/gamma-Al2O3 was achieved, the Li-7 signal in the crystaline phase LiCl appears at -1.01ppm and its intensity increases with the increasing in LiCl loading. From the 2D nutation. NMR spectra, it can be seen that the electric field gradient surrounding the lithium suclei in the dispersion state is larger and so the quadrupole interaction is stronger than that in the crystalline state. The dispersino threshold indicated by NMR is in agreement with that deduced from XRD, which is about 0.136gLiCl/gamma-Al2O3.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000207601300002&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; SCI(E); 中文核心期刊要目总览(PKU); 中国科学引文数据库(CSCD); 0; 03; 196-199; 13
语种	中文
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/84541]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	王凯旋,杨夏万,赵璧英,等. LiCl/γ-Al_2O_3的~7Li MAS NMR研究, Li-7 MAS NMR Studies on LiCl/gamma-Al2O3[J]. 物理化学学报,1997.
APA	王凯旋,杨夏万,赵璧英,谢有畅,孙平川,&门爱菊.(1997).LiCl/γ-Al_2O_3的~7Li MAS NMR研究.物理化学学报.
MLA	王凯旋,et al."LiCl/γ-Al_2O_3的~7Li MAS NMR研究".物理化学学报 (1997).