Ag2O loaded NiO ball-flowers for high performance supercapacitors

被引：25

作者：

Zhang, Yangyang ^{[1
,2
]}

Wang, Jinxing ^{[1
,2
]}

Wan, Piaopiao ^{[1
,2
]}

Ye, Junhua ^{[1
,2
]}

Hussain, Shahid ^{[1
,2
]}

Wei, Hongmei ^{[1
,2
]}

Hou, Dewen ^{[1
,2
]}

机构：

[1] Chongqing Univ, Coll Mat Sci & Engn, Chongqing 400030, Peoples R China

[2] Natl Engn Res Ctr Magnesium Alloys, Chongqing 400030, Peoples R China

来源：

MATERIALS LETTERS | 2016年 / 177卷

基金：

中国国家自然科学基金;

关键词：

Ag2O/NiO ball-flowers; Porous materials; Nanocomposites; Energy storage and conversion; TRANSITION-METAL OXIDES; CAPACITANCE; COMPOSITE;

D O I：

10.1016/j.matlet.2016.04.169

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Ag2O-loaded NiO ball-flowers were synthesized via a simple one-step hydrothermal method. The ball flower architecture is constructed by porous nanosheets modified by Ag2O. During the charge-discharge processes Ag2O can convert to metallic Ag to enhance the conductivity of electrode materials. The unique hierarchical ball-flower architectures can provide more active sites and diffusion paths for ions, increasing the utilization rate of electrode materials. Electrochemical measurements reveal that electrode materials based on Ag2O/NiO nanocomposites exhibited high specific capacitance value (556 F g(-1)) at a current density (1 A g(-1)), as well as an excellent capacitance retention of 103% after 1000 cycles. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：71 / 75

页数：5

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