The transformation of single-crystal calcium phosphate ribbon-like fibres to hydroxyapatite spheres assembled from nanorods | |
Lv JJ(吕晋军)![]() ![]() | |
刊名 | Nanotechnology
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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). |
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