Morphology-controlled synthesis of orthorhombic LuFeO3particles via a hydrothermal route

doi:10.1016/j.jallcom.2014.08.057

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	Morphology-controlled synthesis of orthorhombic LuFeO3particles via a hydrothermal route
	Zhou, M.1; Yang, H.1,2; Xian, T.1; Ma, J.Y.2; Zhang, H.M.1; Feng, W.J.1; Wei, Z.Q.1; Jiang, J.L.1
刊名	Journal of Alloys and Compounds
	2014-12-25
卷号	617 页码:855-862
关键词	Aspect ratio Hydrothermal synthesis Morphology Particle size Particle size analysis Sodium hydroxide Experimental parameters Ferromagnetic behaviors Formation mechanism Large particle sizes LuFeO3particles Morphological tailoring Morphology-controlled Reaction temperature
ISSN号	09258388
DOI	10.1016/j.jallcom.2014.08.057
英文摘要	LuFeO3particles were synthesized via a hydrothermal route, where the influence of various experimental parameters on the products was systematically investigated. XRD analysis reveals that single o-LuFeO3samples can be synthesized at reaction temperatures of 160-260 °C, reaction times of 24-60 h, NaOH concentrations of 0.625-6.25 M, and Lu3+/Fe3+ion concentrations of 0.025-0.075 M. SEM observation shows that LuFeO3particles prepared at relatively low temperatures (160-220°C) and low NaOH concentrations (0.625-3.75 M) exhibit bar-like shape, and the aspect ratio of the bars decreases with increasing the temperature and NaOH concentration. At relatively high temperatures (240-260°C) and high NaOH concentrations (5-6.25 M), the resulted LuFeO3particles are shaped like spheres, polyhedrons or cubes. The samples prepared at the temperature of 220 °C and the NaOH concentration of 2.5-3.75 M have a relatively large particle size. All the particles exhibit a layered structure, indicating that they are mainly constructed from irregular sheets. Compared to the reaction temperature and NaOH concentration, the reaction time and Lu3+/Fe3+concentration has a relatively small effect on the morphology and size of LuFeO3particles. The as-prepared LuFeO3samples have a similar bandgap energy of 2.14 eV and exhibit a week ferromagnetic behavior at room temperature. © 2014 Elsevier B.V. All rights reserved.
WOS研究方向	Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	Elsevier Ltd
WOS记录号	WOS:000344135800139
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/113035]
专题	理学院材料科学与工程学院
作者单位	1.School of Science, Lanzhou University of Technology, Lanzhou; 730050, China 2.State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals, Lanzhou University of Technology, Lanzhou; 730050, China;
推荐引用方式 GB/T 7714	Zhou, M.,Yang, H.,Xian, T.,et al. Morphology-controlled synthesis of orthorhombic LuFeO3particles via a hydrothermal route[J]. Journal of Alloys and Compounds,2014,617:855-862.
APA	Zhou, M..,Yang, H..,Xian, T..,Ma, J.Y..,Zhang, H.M..,...&Jiang, J.L..(2014).Morphology-controlled synthesis of orthorhombic LuFeO3particles via a hydrothermal route.Journal of Alloys and Compounds,617,855-862.
MLA	Zhou, M.,et al."Morphology-controlled synthesis of orthorhombic LuFeO3particles via a hydrothermal route".Journal of Alloys and Compounds 617(2014):855-862.