Structural, magnetic and electrochemical properties of LSMO-ZnO core-shell nanostructure

被引:12
作者
Navin, Kumar [1 ]
Kurchania, Rajnish [1 ]
机构
[1] MANIT, Dept Phys, Nanosci & Engn Ctr, Funct Nanomat Lab, Bhopal 462003, India
关键词
Core-shell structure; TCM; Supercapacitance; LOW-FIELD MAGNETORESISTANCE; ELECTRICAL-PROPERTIES; MAGNETOTRANSPORT PROPERTIES; TRANSPORT; SUPERCAPACITOR; MANGANITE; ELECTRODE;
D O I
10.1016/j.matchemphys.2019.05.083
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
LSMO-ZnO core-shell nanocomposite has been synthesized by using the sol-gel method. The structural, magnetic and electrochemical properties of the LSMO-ZnO based core-shell structure has been investigated in detail. The XRD analysis shows the coexistence of LSMO (rhombohedral, R (3) over barc) and ZnO (hexagonal, P63mc) phase in the composite without any impurity. The microstructural analysis confirms that the formation of LSMO-ZnO core shell structure with average particle size similar to 27.5 nm. The magnetic measurement shows that the magnetization decreases and magnetic transition temperature shifts from 360 K to 240 K for LSMO-ZnO core shell nanocomposite. The presence of ZnO introduces compositional and magnetic disorder near LSMO-ZnO interface. The electrochemical properties of the LSMO-ZnO core shell structure has been significantly improved as compared to the pure LSMO.
引用
收藏
页码:25 / 31
页数:7
相关论文
共 37 条
[1]   Effect of Zn substitution on para- to ferromagnetic transition temperature in La0.67Ca0.33Mn1-xZnxO3 colossal magnetoresistance materials [J].
Awana, VPS ;
Schmitt, E ;
Gmelin, E ;
Gupta, A ;
Sedky, A ;
Narlikar, AV ;
de Lima, OF ;
Cardoso, CA ;
Malik, SK ;
Yelon, WB .
JOURNAL OF APPLIED PHYSICS, 2000, 87 (09) :5034-5036
[2]   The Electro-magnetic Properties of La0.7Ca0.2Sr0.1MnO3/ZnO Composites via Liquid Phase Method [J].
Chen, F. Y. ;
Zeng, Y. ;
Xiong, Y. H. ;
Li, L. J. ;
Liu, Z. L. ;
Xiong, C. S. .
JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM, 2012, 25 (07) :2523-2527
[3]   The effect of artificial grain boundaries on magneto-transport properties of charge ordered-ferromagnetic nanocomposites [J].
Das, Kalipada ;
Satpati, B. ;
Das, I. .
RSC ADVANCES, 2015, 5 (35) :27338-27346
[4]   Giant enhancement of magnetoresistance in core-shell ferromagnetic-charge ordered nanostructures [J].
Das, Kalipada ;
Rawat, R. ;
Satpati, B. ;
Das, I. .
APPLIED PHYSICS LETTERS, 2013, 103 (20)
[5]   Magnetoresistance and current-voltage characteristics in La2/3Sr1/3MnO3/ZnO composites [J].
Jin, K. X. ;
Zhao, S. G. ;
Chen, C. L. ;
Wang, J. Y. .
MATERIALS LETTERS, 2008, 62 (6-7) :1061-1063
[6]   ZnO@MoO3 core/shell nanocables: facile electrochemical synthesis and enhanced supercapacitor performances [J].
Li, Gao-Ren ;
Wang, Zi-Long ;
Zheng, Fu-Lin ;
Ou, Yan-Nan ;
Tong, Ye-Xiang .
JOURNAL OF MATERIALS CHEMISTRY, 2011, 21 (12) :4217-4221
[7]   A free-standing magneto-fluorescent La1-xSrxMnO3@ZnO nanoparticle: Synthesis, properties and sharp Curie transition [J].
Liu, Xiao ;
Fang, Ning ;
Li, Chunyan ;
Li, Xuemei ;
Liu, Hongling ;
Wu, Junhua .
JOURNAL OF ALLOYS AND COMPOUNDS, 2017, 693 :518-526
[8]   Strontium doped lanthanum manganite/manganese dioxide composite electrode for supercapacitor with enhanced rate capability [J].
Lv, Jingbo ;
Zhang, Yaohui ;
Lv, Zhe ;
Huang, Xiqiang ;
Wang, Zhihong ;
Zhu, Xingbao ;
Wei, Bo .
ELECTROCHIMICA ACTA, 2016, 222 :1585-1591
[9]   Large low-field magnetoresistance in La0.7Ca0.3MnO3 induced by artificial grain boundaries [J].
Mathur, ND ;
Burnell, G ;
Isaac, SP ;
Jackson, TJ ;
Teo, BS ;
MacManusDriscoll, JL ;
Cohen, LF ;
Evetts, JE ;
Blamire, MG .
NATURE, 1997, 387 (6630) :266-268
[10]   Influence of calcium doping on performance of LaMnO3 supercapacitors [J].
Mo, Haiyang ;
Nan, Haoshan ;
Lang, Xueqin ;
Liu, Shujie ;
Qiao, Liang ;
Hu, Xiaoying ;
Tian, Hongwei .
CERAMICS INTERNATIONAL, 2018, 44 (08) :9733-9741