NiCo2O4 Nanosheet Arrays for High Performance Energy Storage Device

被引：23
作者：
Tong, Yongli [1 ]
Qi, Dongli [1 ]
Chi, Baoqian [1 ]
Zhang, Weiqiang [2 ]
机构：
[1] Shenyang Ligong Univ, Sch Sci, Shenyang 110870, Liaoning, Peoples R China
[2] Shenyang Ligong Univ, Sch Environm & Chem Engn, Shenyang 110870, Liaoning, Peoples R China
来源：
SCIENCE OF ADVANCED MATERIALS | 2019年 / 11卷 / 03期
关键词：
NiCo2O4; Electrochemical Performance; Asymmetrical Supercapacitors; Long Cycle Life; FLEXIBLE CARBON-FIBERS; HYBRID SUPERCAPACITOR ELECTRODE; NANONEEDLE ARRAYS; NANOSTRUCTURES; NANOFLAKES; GRAPHENE; CO;
D O I：
10.1166/sam.2019.3446
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
NiCo2O4 nanosheet arrays grown on a nickel foam substrate are fabricated by a facile hydrothermal method. The as-synthesized NiCo2O4 nanostructure arrays can provide rich reaction sites and short ion diffusion path. Therefore, the as-synthesized NiCo2O4 products as binder-free electrodes for supercapacitors exhibit remarkable electrochemical performance with areal capacity of 1.18 C cm(-2) at a current density of 2 mA cm(-2), excellent rate performance and outstanding cycling stability. The assembled supercapacitor using NiCo2O4 electrode as the positive electrode delivers a volumetric energy density of 0.11 mW h cm(-3) at a volumetric power density of 7.5 mW h cm(-3). NiCo2O4 nanosheet electrode exhibits promising electrochemical applications in future energy storage device.
引用
收藏
页码：338 / 344
页数：7
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