Optimal synthesis and magnetic properties of size-controlled nickel phosphide nanoparticles

	Optimal synthesis and magnetic properties of size-controlled nickel phosphide nanoparticles
	Tan, YY; Sun, DB; Yu, HY; Wu, T; Yang, B; Gong, Y; Yan, S; Du, R; Chen, ZJ; Xing, XQ
刊名	JOURNAL OF ALLOYS AND COMPOUNDS
	2014
卷号	605 页码:230-236
关键词	Nickel phosphide nanoparticles XAFS Local structure Size-dependent magnetic properties
英文摘要	Pulse discharge method was used in liquid phase to prepare nickel phosphide nanoparticles. The size and morphology of the as-prepared nanoparticles were found to be easily controlled through changing reaction parameters such as temperature, reactants concentration, reactants molar ratio, pulse discharge number, and pulse discharge voltage. The optimal reaction parameters have been obtained by single-factor experiments. X-ray diffraction, X-ray absorption fine structure spectra, Field Emission Scanning Electron Microscope, and Energy Dispersive X-ray Spectrum were used to characterize the as-prepared Ni-P nanoparticles. Vibrating Sample Magnetometer was used as magnetic measurements of the Ni-P nanoparticles. The results demonstrate that the as-prepared Ni-P nanoparticles are in amorphous phase, and consist of Ni and P elements. The P-content in the as-prepared Ni-P nanoparticles increases with the increasing of Ni-P particle size, and is independent on the initial concentration of P-concentration in the reaction solution. The Ni-P nanoparticles have totally about 12 near-neighbors of Ni-Ni and Ni-P around center Ni. The Ni-Ni distance increases with the increasing particle size. The as-prepared Ni-P nanoparticles present paramagnetic nature. Their saturated magnetizations are also size-dependent. The larger Ni-P particles has lower saturated magnetization, which can be attributed to the entrance of P into Ni lattice, causing a larger Ni-Ni separation and a looser, distorted local atomic structure. (C) 2014 Elsevier B.V. All rights reserved.
学科主题	Chemistry; Materials Science; Metallurgy & Metallurgical Engineering
收录类别	SCI
WOS记录号	WOS:000335927500036
公开日期	2016-05-03
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/225051]
专题	高能物理研究所_多学科研究中心
推荐引用方式 GB/T 7714	Tan, YY,Sun, DB,Yu, HY,et al. Optimal synthesis and magnetic properties of size-controlled nickel phosphide nanoparticles[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2014,605:230-236.
APA	Tan, YY.,Sun, DB.,Yu, HY.,Wu, T.,Yang, B.,...&吴忠华.(2014).Optimal synthesis and magnetic properties of size-controlled nickel phosphide nanoparticles.JOURNAL OF ALLOYS AND COMPOUNDS,605,230-236.
MLA	Tan, YY,et al."Optimal synthesis and magnetic properties of size-controlled nickel phosphide nanoparticles".JOURNAL OF ALLOYS AND COMPOUNDS 605(2014):230-236.