QQ客服 官方微博 反馈留言

	Preparation and structure of nasr0.5al2b2o7 and naca0.5al2b2o7
	Gao, JH; Li, RK
刊名	Journal of solid state chemistry
	2005-05-01
卷号	178期号:5页码:1513-1517
关键词	Alumino-borate Rietveld refinement Layered structure
ISSN号	0022-4596
DOI	10.1016/j.jssc.2004.12.029
通讯作者	Li, rk()
英文摘要	Two compounds nasr0.5al2b2o7 and naca0.5al2b2o7, have been found to crystallize into a new structure type by rietveld refinement from x-ray powder diffraction data. their structure belongs to hexagonal space group p6(3)/m, with lattice parameters of a = 4.85640(8) &angs;, c = 15.6635(4) &angs; for nasr0.5al2b2o7 and a = 4.81292(10) &angs;, c = 15.4056(4) &angs;, for naca0.5al2b2o7, respectively. the structure is built up by [al2b2o7](2-) double layer and na+/ca2- or na+/sr2+ ions alternatively stacking along the c-axis. the sites in the inter-double layer are fully occupied jointly by na and ca or sr, but the intra-double layer sites are only half occupied solely by na. a mechanism of the transition of the structure from caal2b2o7 to present structure type by replacing only 1% ca by na (2%) as observed by chang and keszler (mater. res. bull. 33 (1998) 299) is also proposed. © 2004 elsevier inc. all rights reserved.
WOS关键词	CRYSTAL-STRUCTURE ; K2AL2B2O7
WOS研究方向	Chemistry
WOS类目	Chemistry, Inorganic & Nuclear ; Chemistry, Physical
语种	英语
出版者	ACADEMIC PRESS INC ELSEVIER SCIENCE
WOS记录号	WOS:000228934800022
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2377775
专题	中国科学院大学
通讯作者	Li, RK
作者单位	1.Chinese Acad Sci, Beijing Ctr Crystal Res & Dev, Tech Inst Phys & Chem, Beijing 100080, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100864, Peoples R China
推荐引用方式 GB/T 7714	Gao, JH,Li, RK. Preparation and structure of nasr0.5al2b2o7 and naca0.5al2b2o7[J]. Journal of solid state chemistry,2005,178(5):1513-1517.
APA	Gao, JH,&Li, RK.(2005).Preparation and structure of nasr0.5al2b2o7 and naca0.5al2b2o7.Journal of solid state chemistry,178(5),1513-1517.
MLA	Gao, JH,et al."Preparation and structure of nasr0.5al2b2o7 and naca0.5al2b2o7".Journal of solid state chemistry 178.5(2005):1513-1517.

个性服务

查看访问统计

相关权益政策

暂无数据

收藏/分享

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。