A Ni1-xZnxS/Ni foam composite electrode with multi-layers: one-step synthesis and high supercapacitor performance

被引：52

作者：

Wang, Xiaobing ^{[1
]}

Hao, Jin ^{[1
]}

Su, Yichang ^{[1
]}

Liu, Fanggang ^{[1
]}

An, Jian ^{[1
]}

Lian, Jianshe ^{[1
]}

机构：

[1] Jilin Univ, Dept Mat Sci & Engn, Key Lab Automobile Mat, Minist Educ, Changchun 130022, Peoples R China

来源：

JOURNAL OF MATERIALS CHEMISTRY A | 2016年 / 4卷 / 33期

基金：

中国国家自然科学基金;

关键词：

HIGH-ENERGY-DENSITY; AQUEOUS ASYMMETRIC SUPERCAPACITOR; EXCELLENT RATE CAPABILITY; NICKEL FOAM; NI FOAM; ULTRAHIGH CAPACITANCE; ELECTROCHEMICAL CAPACITORS; HYDROXIDE NANOSHEETS; NI3S2; NANOSHEETS; STORAGE DEVICES;

D O I：

10.1039/c6ta04022e

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：

Multi-layer NixZn1-xS/Ni foam composites were synthesized by the facile method of a one-step hydrothermal reaction on a frame of Ni foam. The Zn element plays a critical role in constructing the multi-layer nanostructure. In particular, various layers with different morphologies work with good synergistic effect to provide an excellent electrochemical performance. The as-synthesized Ni1-xZnxS/Ni foam-2 h electrode shows a high specific capacitance (1815 F g(-1) at 1 A g(-1)) and outstanding rate properties (1050 F g(-1) at 100 A g(-1) and 50.1% rate retention over 200 A g(-1)). Moreover, a two-electrode Ni1-xZnxS/Ni foam-2 h//active carbon-graphene (AC-G) asymmetric supercapacitor device was fabricated and it delivers both a high specific energy density and an excellent cycling stability. The strategy presented here for constructing multi-layer structures is facile and effective, and could be expanded as a general method.

引用

页码：12929 / 12939

页数：11

共 61 条

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