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	Growth of nearly monodisperse mno nanocrystals in a two-size distribution system
	Li, Qi2; Wang, Jian1; He, Yujian1; Liu, Wei1; Qiu, Xiaohui2
刊名	Crystal growth & design
	2009-07-01
卷号	9期号:7页码:3100-3103
ISSN号	1528-7483
DOI	10.1021/cg800876p
通讯作者	Liu, wei(weiliu@gucas.ac.cn)
英文摘要	Nearly monodisperse mno nanocrystals were synthesized by the thermal decomposition of manganese oleate using the hot-injection method. the growth dynamics of the nanocrystals was studied by the time-sampling method, which revealed an interesting growing-to-shrinking behavior accompanied by a broadening-narrowing-broadening size distribution. the size evolution of nanocrystals is attributed to the kinetics of the monomer concentration in the solution as a result of the competition between crystal growth and ostwald ripening, which favors the growth of another ensemble of mno nanocrystals that coexisted ill the products with much larger sizes. the two ensembles of mno nanocrystals with rather different characteristic sizes could be easily separated by their different dispersibilities in hexane, allowing an independent determination of their growth modes in the reaction process. the correlation between the growth of small mno nanoparticles and that of the large ones indicates that the existence of large mno nanocrystals help improve the monodispersity of the small ones by reducing the nucleation time and suppressing size coarsening in the ostwald ripening process. the characteristic size evolution of the nanocrystals in a two-size distribution system suggests an interesting method to control the growth (or dissolution) of nanocrystals with high monodispersity.
WOS关键词	OXIDE NANOCRYSTALS ; MAGNETIC-PROPERTIES ; NANOPARTICLES ; NANORODS ; ROUTE ; MN3O4
WOS研究方向	Chemistry ; Crystallography ; Materials Science
WOS类目	Chemistry, Multidisciplinary ; Crystallography ; Materials Science, Multidisciplinary
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000267609600025
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2400906
专题	中国科学院大学
通讯作者	Liu, Wei
作者单位	1.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China 2.Natl Ctr Nanosci & Technol, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Li, Qi,Wang, Jian,He, Yujian,et al. Growth of nearly monodisperse mno nanocrystals in a two-size distribution system[J]. Crystal growth & design,2009,9(7):3100-3103.
APA	Li, Qi,Wang, Jian,He, Yujian,Liu, Wei,&Qiu, Xiaohui.(2009).Growth of nearly monodisperse mno nanocrystals in a two-size distribution system.Crystal growth & design,9(7),3100-3103.
MLA	Li, Qi,et al."Growth of nearly monodisperse mno nanocrystals in a two-size distribution system".Crystal growth & design 9.7(2009):3100-3103.

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