Effect of Sr substitution on structure and electrochemical properties of perovskite-type LaMn0.9Ni0.1O3 nanofibers

被引：18
|
作者：
Ma, Pian Pian [1 ,2 ,3 ,4 ]
Zhu, Bin [1 ]
Lei, Na [2 ,3 ,4 ]
Liu, Yong Kun [2 ,3 ,4 ]
Yu, Bo [2 ,3 ,4 ]
Lu, Qiu Ling [1 ]
Dai, Jian Ming [1 ]
Li, Shu Hong [1 ]
Jiang, Guo Hua [2 ,3 ,4 ]
机构：
[1] Zhejiang Sci Tech Univ, Dept Mat Engn, Hangzhou 310018, Zhejiang, Peoples R China
[2] Zhejiang Sci Tech Univ, Minist Educ, Key Lab ATMMT, Hangzhou 310018, Zhejiang, Peoples R China
[3] Zhejiang Sci Tech Univ, Natl Engn Lab Text Fiber Mat & Proc Technol, Hangzhou 310018, Zhejiang, Peoples R China
[4] Zhejiang Sci Tech Univ, Inst Smart Fiber Mat, Hangzhou 310018, Zhejiang, Peoples R China
来源：
MATERIALS LETTERS | 2019年 / 252卷
关键词：
Perovskite; Electrochemical property; Crystal structure; Nanofiber; ELECTRODE MATERIALS; SUPERCAPACITOR; PERFORMANCE;
D O I：
10.1016/j.matlet.2019.05.090
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Perovskite-type lanthanide oxide is a new kind of promising electrode material for supercapacitor. In this study, La1-xSrxMn0.9Ni0.1O3 nanofibers with different Sr substitutions are prepared by electrospun method and used as electrode material firstly. The effect of Sr substitution on the structure of LaMn0.9Ni0.1O3 perovskite has been investigated, and the electrochemical properties have been tailored correspondingly. Minor Sr substitution introduces some oxygen vacancies into the perovskite structure, and optimizes the specific capacitance. However, excessive Sr substitution causes lattice distortion of the perovskite structure and deteriorates the electrochemical performance instead. The highest specific capacitance of 113.9 F.g(-.1) is obtained in La0.85Sr0.15Mn0.9Ni0.1O3 component. (C) 2019 Elsevier B.V. All rights reserved.
引用
收藏
页码：23 / 26
页数：4
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