The transformation of single-crystal calcium phosphate ribbon-like ﬁbres to hydroxyapatite spheres assembled from nanorods

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	The transformation of single-crystal calcium phosphate ribbon-like ﬁbres to hydroxyapatite spheres assembled from nanorods
	Lv JJ(吕晋军); Lv JJ(吕晋军)
刊名	Nanotechnology
	2008
卷号	19 页码:155608(1-10)
ISSN号	0957-4484
通讯作者	吕晋军
中文摘要	Two precursors of ribbon-like anhydrous dicalcium phosphate (DCPA) and calcium phosphate ﬁbres were successfully synthesized at 85 ◦C through a simple and mild pathway from Ca(NO3)2·4H2Oand (NH4)2HPO4 upon the hydrolysis of urea. Different molar concentrations of urea resulted in different precursors, including precursor I (DCPA phase) and precursor II (calcium phosphate with DCPA, octacalcium phosphate (OCP) and hydroxyapatite (HAp) phase). By immersing the two precursors in ammonium hydroxide solution (pH = 12), the transformation from precursors to hydroxyapatite could be achieved. X-ray diffraction (XRD) results combined with transmission electron microscopy (TEM) indicated that DCPA ﬁbres (precursor I) were transformed to HAp nanorods in transformation I. In transformation II,dandelion-like spheres assembled by HAp nanorods were obtained from calcium phosphate (precursor II). The mechanisms of transformations I and II are also proposed and discussed based on the XRD and TEM results.
学科主题	材料科学与物理化学
收录类别	SCI
资助信息	the National Natural Science Foundation of China (50572107);‘West Light Program of 2003’ of the Chinese Academy of Sciences
语种	英语
公开日期	2013-03-28
内容类型	期刊论文
源URL	[http://210.77.64.217/handle/362003/2682]
专题	兰州化学物理研究所_固体润滑国家重点实验室
通讯作者	Lv JJ(吕晋军); Lv JJ(吕晋军)
推荐引用方式 GB/T 7714	Lv JJ,Lv JJ. The transformation of single-crystal calcium phosphate ribbon-like ﬁbres to hydroxyapatite spheres assembled from nanorods[J]. Nanotechnology,2008,19:155608(1-10).
APA	吕晋军,&吕晋军.(2008).The transformation of single-crystal calcium phosphate ribbon-like ﬁbres to hydroxyapatite spheres assembled from nanorods.Nanotechnology,19,155608(1-10).
MLA	吕晋军,et al."The transformation of single-crystal calcium phosphate ribbon-like ﬁbres to hydroxyapatite spheres assembled from nanorods".Nanotechnology 19(2008):155608(1-10).