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学科主题: 物理化学
题名: Designed synthesis of hydroxyapatite nanostructures: bullet-like single crystal and whiskered hollow ellipsoid
作者: Zhang, Yanjie1, 2;  Wang, Junhu1, 2;  Sharma, Virender K.3
通讯作者: 王军虎
刊名: JOURNAL OF MATERIALS SCIENCE-MATERIALS IN MEDICINE
发表日期: 2014-06-01
DOI: 10.1007/s10856-014-5171-y
卷: 25, 期:6, 页:1395-1401
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Technology
类目[WOS]: Engineering, Biomedical ;  Materials Science, Biomaterials
研究领域[WOS]: Engineering ;  Materials Science
英文摘要: Hydroxyapatite (HAp) nanostructures of whiskered hollow ellipsoid and bullet-like single crystal were synthesized under mild reaction conditions by using a template-free "one pot" synthetic method. Immersing calcium carbonate precursor into ammonium phosphate solution resulted in the HAp phase. Formed HAp crystals were characterized by X-ray diffraction and transmission electron microscopy techniques. The stability and phase composition of calcium carbonate influenced the morphology and crystallinity of HAp. The transformation of the most stable calcite precursor yielded the bullet-like HAp single crystal of 300-600 nm in length, similar to 0 nm in tip diameter and similar to 80 to similar to 100 nm in bottom diameter. The metastable vaterite precursor showed the formation of the whiskered hollow ellipsoid nanostructures composed of HAp nanorods of similar to 10 nm in diameter. The driving force for the whole transformation process was the difference in solubility of calcium carbonate and HAp. At the same time, Kirkendall effect and Ostwald ripening played important roles in the formation of the different HAp nanostructures.
关键词[WOS]: LOW-TEMPERATURE ;  NANORODS ;  TRANSFORMATION ;  PRECIPITATION ;  ARCHITECTURE ;  NANOSPHERES ;  CONVERSION ;  PROPERTY ;  CALCITE ;  APATITE
语种: 英语
WOS记录号: WOS:000336904200001
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/144327
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Lab Catalysts & New Mat Aerosp, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Mossbauer Effect Data Ctr, Dalian 116023, Peoples R China
3.Texas A&M Univ, Sch Rural Publ Hlth, Dept Environm & Occupat Hlth, College Stn, TX 77843 USA

Recommended Citation:
Zhang, Yanjie,Wang, Junhu,Sharma, Virender K.. Designed synthesis of hydroxyapatite nanostructures: bullet-like single crystal and whiskered hollow ellipsoid[J]. JOURNAL OF MATERIALS SCIENCE-MATERIALS IN MEDICINE,2014,25(6):1395-1401.
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