Controlled synthesis of MnxFe1-xO concave nanocubes and highly branched cubic mesocrystals

doi:10.1039/c3ce41618f

CORC > 化学研究所 > 中国科学院化学研究所

	Controlled synthesis of MnxFe1-xO concave nanocubes and highly branched cubic mesocrystals
	Li, Zhenhu; Ma, Yurong; Qi, Limin
刊名	CRYSTENGCOMM
	2014
卷号	16 期号:4 页码:600-608
ISSN号	1466-8033
DOI	10.1039/c3ce41618f
英文摘要	In this work, we reported the synthesis of concave nanocubes of iron-manganese oxide (MnxFe1-xO) via a thermolysis process in a mixture of oleic acid (OA) and oleylamine (OAm). The shape and size of the iron-manganese oxide can be tuned by changing the experimental conditions such as the solvent composition (volume ratio of OA and OAm), heating rate, precursor concentration, thermolysis temperature and reaction time. The MnxFe1-xO nanocrystals with different morphologies such as nanospheres, nanocubes, concave nanocubes, and octapods were synthesized under appropriate reaction conditions. The favorable reaction conditions and growth mechanism for concave MnxFe1-xO cubes were investigated in detail. Moreover, monodisperse MnxFe1-xO nanocrystals with anisotropic shapes and compositions tunable in the entire range (0 <= x <= 1) were obtained by changing the Mn/Fe ratio in the precursor solutions. The morphology of the MnxFe1-xO nanocrystals varied from concave nanocubes, nanospindles, nanorods, T-shaped nanorods to nanoflowers with increasing Mn content x from 0 to 1. Furthermore, superparamagnetic, highly branched cubic MnxFe1-xO mesocrystals with sizes more than 100 nm were synthesized for the first time by using 1-octadecene as a co-solvent in the reaction solutions. It was proposed that the highly branched cubic mesocrystals were formed via self-aggregation of concave nanocubes, accompanied by Ostwald ripening and crystal fusion and growth.
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000328551400014
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/52657]
专题	中国科学院化学研究所
通讯作者	Li, Zhenhu
作者单位	Peking Univ, Coll Chem, State Key Lab Struct Chem Unstable & Stable Speci, BNLMS, Beijing 100871, Peoples R China
推荐引用方式 GB/T 7714	Li, Zhenhu,Ma, Yurong,Qi, Limin. Controlled synthesis of MnxFe1-xO concave nanocubes and highly branched cubic mesocrystals[J]. CRYSTENGCOMM,2014,16(4):600-608.
APA	Li, Zhenhu,Ma, Yurong,&Qi, Limin.(2014).Controlled synthesis of MnxFe1-xO concave nanocubes and highly branched cubic mesocrystals.CRYSTENGCOMM,16(4),600-608.
MLA	Li, Zhenhu,et al."Controlled synthesis of MnxFe1-xO concave nanocubes and highly branched cubic mesocrystals".CRYSTENGCOMM 16.4(2014):600-608.