Construction of hierarchical core-shell ZnCo2O4@Ni-Co-S nanosheets with a microsphere structure on nickel foam for high-performance asymmetric supercapacitors

2020 ◽  
Vol 513 ◽  
pp. 145893 ◽  
Author(s):  
Haicheng Xuan ◽  
Hongsheng Li ◽  
Jinhong Gao ◽  
Yayu Guan ◽  
Zhigao Xie ◽  
...  
Nano Research ◽  
2018 ◽  
Vol 11 (3) ◽  
pp. 1415-1425 ◽  
Author(s):  
Weidong He ◽  
Zhifu Liang ◽  
Keyu Ji ◽  
Qingfeng Sun ◽  
Tianyou Zhai ◽  
...  

Author(s):  
Dai Jiu Yi ◽  
Soram Bobby Singh ◽  
Nam Hoon Kim ◽  
Joong Hee Lee

The rational design of free-standing hierarchic core–shell nanoporous architectures is a good strategy for fabricating next-generation electrode materials for application to electrochemical energy conversion/storage systems. Herein, hierarchical core–shell 3D Co9S8@Nix:Moy–Se...


2016 ◽  
Vol 4 (21) ◽  
pp. 8249-8254 ◽  
Author(s):  
Zhengxiang Gu ◽  
Xiaojun Zhang

Hierarchical NiCo2O4@MnMoO4 core–shell nanomaterial on nickel foam was designed via a facile hydrothermal method.


2015 ◽  
Vol 3 (23) ◽  
pp. 12452-12460 ◽  
Author(s):  
Wei Kong ◽  
Chenchen Lu ◽  
Wu Zhang ◽  
Jun Pu ◽  
Zhenghua Wang

Homogeneous core–shell NiCo2S4 nanostructures supported on nickel can be applied as a high-performance supercapacitor electrode.


2021 ◽  
Vol 44 ◽  
pp. 103459
Author(s):  
Zhengjie Xie ◽  
Dianfeng Dai ◽  
Ying Xue ◽  
Yixin Li ◽  
Liangyu Liu ◽  
...  

2020 ◽  
Vol 15 (12) ◽  
pp. 1552-1558
Author(s):  
Yongli Tong ◽  
Xinyu Cheng ◽  
Dongli Qi ◽  
Baoqian Chi ◽  
Weiqiang Zhang

We successfully fabricate hierarchical ZnCo2O4@Co3S4 nanowires directly supported on nickel foam by a facile hydrothermal route. The as-synthesized product possesses large specific surface area and short reaction path, which result in superior electrochemical performances as the electrode of supercapacitor (SC). The obtained electrode material shows high area capacitance of 2.02 C g-1 at current density of 0.8 A g-1 with 95.3% retention of initial capacitance after 6000 cycles. Moreover, the assembled asymmetric supercapacitor (ASC) device using ZnCo2O4@Co3S4 nanowires as anode material displays noticeable electrochemical capability with an energy density of 79.8 mW h g-1 at power density of 1795 W kg-1 and 73.2 mW h g-1 at 9760 W kg-1. In addition, the device shows remarkable cycling capability, maintaining 82.2% retention after long-term cycles. It reveals the as-fabricated material would be promising energy storage materials.


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