Synthesis of Different-Sized La0.7Sr0.3MnO3 Nanoparticles via a Polyacrylamide Gel Route and Their Magnetocaloric Properties

doi:10.1007/s10948-013-2190-8

CORC > 兰州理工大学 > 兰州理工大学 > 省部共建有色金属先进加工与再利用国家重点实验室

	Synthesis of Different-Sized La0.7Sr0.3MnO3 Nanoparticles via a Polyacrylamide Gel Route and Their Magnetocaloric Properties
	Wang, Y. F.1,2; Yang, H.1,2
刊名	JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM
	2013-12
卷号	26 期号:12 页码:3463-3467
关键词	La0.7Sr0.3MnO3 Nanoparticles Polyacrylamide gel route Chelating agents Magnetocaloric effect
ISSN号	1557-1939
DOI	10.1007/s10948-013-2190-8
英文摘要	In this work, a polyacrylamide gel route was used to synthesize La0.7Sr0.3MnO3 nanoparticles. It is shown that single-phase La0.7Sr0.3MnO3 nanoparticles with a rhombohedral perovskite structure can be prepared at a calcination temperature of 600 A degrees C when separately using citric acid, tartaric acid, acetic acid, oxalic acid, and EDTA as the chelating agent. The particles prepared using the five chelating agents are nearly spherical in shape with a narrow diameter distribution, and have an average size of 24, 28, 36, 38, and 50 nm, respectively. Magnetic properties of the 24 and 50 nm samples (termed as samples S1 and S5, respectively) were investigated. It is revealed that the samples have a similar ferromagnetic Curie temperature T (C) , and exhibit a typical second-order magnetic phase transition near T (C) . The maximum magnetic entropy change at an applied magnetic field of 15 kOe is obtained to be about 0.71 and 0.74 J kg(-1) K-1 for the 24 and 50 nm samples, respectively.
资助项目	National Natural Science Foundation of China[50962009][51262018] ; Hongliu Outstanding Talents Foundation of Lanzhou University of Technology[J201205]
WOS研究方向	Physics
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000325949200017
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/34567]
专题	省部共建有色金属先进加工与再利用国家重点实验室材料科学与工程学院理学院
通讯作者	Yang, H.
作者单位	1.Lanzhou Univ Technol, State Key Lab Gansu Adv Nonferrous Met Mat, Lanzhou 730050, Peoples R China 2.Lanzhou Univ Technol, Sch Sci, Lanzhou 730050, Peoples R China
推荐引用方式 GB/T 7714	Wang, Y. F.,Yang, H.. Synthesis of Different-Sized La0.7Sr0.3MnO3 Nanoparticles via a Polyacrylamide Gel Route and Their Magnetocaloric Properties[J]. JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM,2013,26(12):3463-3467.
APA	Wang, Y. F.,&Yang, H..(2013).Synthesis of Different-Sized La0.7Sr0.3MnO3 Nanoparticles via a Polyacrylamide Gel Route and Their Magnetocaloric Properties.JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM,26(12),3463-3467.
MLA	Wang, Y. F.,et al."Synthesis of Different-Sized La0.7Sr0.3MnO3 Nanoparticles via a Polyacrylamide Gel Route and Their Magnetocaloric Properties".JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM 26.12(2013):3463-3467.