Hierarchical MoO3/MnO2 core-shell nanostructures with enhanced pseudocapacitive properties

被引：16
|
作者：
Cao, Yunjiu [1 ,2 ]
Cui, Zhe [2 ]
Ji, Tao [1 ,2 ]
Li, Wenyao [2 ]
Xu, Kaibing [1 ]
Zou, Rujia [1 ]
Yang, Jianmao [1 ]
Qin, Zongyi [1 ]
Hu, Junqing [1 ]
机构：
[1] Donghua Univ, Coll Mat Sci & Engn, State Key Lab Modificat Chem Fibers & Polymer Mat, Shanghai 201620, Peoples R China
[2] Shanghai Univ Engn Sci, Sch Fundamental Studies, Shanghai 201620, Peoples R China
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2017年 / 725卷
基金：
中国国家自然科学基金;
关键词：
Molybdenum trioxide; Manganese dioxide; Core-shell nanostructures; Supercapacitors; NANOWIRE ARRAYS; COMPOSITE ELECTRODES; HIGH-POWER; PERFORMANCE; OXIDE; SUPERCAPACITORS; ALPHA-MOO3; HYBRID; FOAM;
D O I：
10.1016/j.jallcom.2017.07.182
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Hierarchical MoO3/MnO2 core-shell nanostructures were prepared by a hydrothermal process followed by in-situ oxidative polymerization as an integrated electrode material for supercapacitors. The core-shell MoO3/MnO2 nanocomposites exhibited excellent electrochemical properties with high specific capacitance of 352.4 F g(-1) at 1 A g(-1) and desirable rate capability in 1 M NaOH solution. The superior electrochemical performances could be ascribed to the MoO3/MnO2 core-shell nanostructures which make two types of pseudocapacitive materials connected physically and significantly improve electrolyte diffusion efficiency and electron transport. These MoO3/MnO2 core-shell nanostructures with remarkable electrochemical performances could be considered as a prospective candidate for the application of supercapacitors. (C) 2017 Elsevier B.V. All rights reserved.
引用
收藏
页码：373 / 378
页数：6
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