Shaped-controlled synthesis of porous NiCo2O4 with 1-3 dimensional hierarchical nanostructures for high-performance supercapacitors

RSC Advances ◽  
2015 ◽  
Vol 5 (3) ◽  
pp. 1697-1704 ◽  
Author(s):  
Ting Zhu ◽  
En Rong Koo ◽  
Ghim Wei Ho

The highly porous 1D-3D NiCo2O4 materials deliver high specific capacitances with good cycling stability as supercapacitor electrodes.

2016 ◽  
Vol 4 (13) ◽  
pp. 4718-4727 ◽  
Author(s):  
Ananthakumar Ramadoss ◽  
Kyeong-Nam Kang ◽  
Hyo-Jin Ahn ◽  
Sun-I Kim ◽  
Seung-Tak Ryu ◽  
...  

A highly-porous, binder free 3D-NiCo2O4/Ni nanostructure on the Ni-wire was fabricated for flexible fiber supercapacitors. The fabricated device exhibited enhanced capacitance, high efficiency, good cycling stability, and flexibility.


RSC Advances ◽  
2016 ◽  
Vol 6 (4) ◽  
pp. 3020-3024 ◽  
Author(s):  
Yunjiu Cao ◽  
Lei An ◽  
Lijun Liao ◽  
Xijian Liu ◽  
Tao Ji ◽  
...  

ZnO@CoMoO4 core/shell structures as an electrode for supercapacitors exhibited a high specific capacitance of 1.52 F cm−2 (1169 F g−1) at 2 mA cm−2 and a good cycling stability of 109% of the initial specific capacitance after 5000 cycles.


2015 ◽  
Vol 3 (25) ◽  
pp. 13461-13467 ◽  
Author(s):  
Weijie Liu ◽  
Nishuang Liu ◽  
Yuling Shi ◽  
Ying Chen ◽  
Congxing Yang ◽  
...  

A flexible wire-shaped fiber asymmetric supercapacitor shows perfect bending properties, high performance and good cycling stability.


2016 ◽  
Vol 4 (28) ◽  
pp. 10948-10955 ◽  
Author(s):  
Wei Sun ◽  
Liu Wan ◽  
Xiaocheng Li ◽  
Xinhong Zhao ◽  
Xingbin Yan

A bean pod-like void-containing Si@DDAC@N-GNS structure has been elaborately designed and synthesized, which demonstrates highly reversible capacity, excellent rate capability and good cycling stability.


CrystEngComm ◽  
2017 ◽  
Vol 19 (47) ◽  
pp. 7177-7184 ◽  
Author(s):  
Xin Xiong ◽  
Liuyin Zhou ◽  
Wenjie Cao ◽  
Jiyuan Liang ◽  
Yazhen Wang ◽  
...  

Two halogen-bridged di-nuclear Cu-based 3D porous frameworks present high specific capacitance and good cycling stability.


Nanomaterials ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 1932
Author(s):  
Leqiang Wu ◽  
Hengjia Shao ◽  
Chen Yang ◽  
Xiangmin Feng ◽  
Linxuan Han ◽  
...  

To date, the fabrication of advanced anode materials that can accommodate both Na+ and K+ storage is still very challenging. Herein, we developed a facile solvothermal and subsequent annealing process to synthesize SnS2/RGO composite, in which SnS2 nanosheets are bonded on RGO, and investigated their potential as anodes for Na+ and K+ storage. When used as an anode in SIBs, the as-prepared SnS2/RGO displays preeminent performance (581 mAh g−1 at 0.5 A g−1 after 80 cycles), which is a significant improvement compared with pure SnS2. More encouragingly, SnS2/RGO also exhibits good cycling stability (130 mAh g−1 at 0.3 A g−1 after 300 cycles) and excellent rate capability (520.8 mAh g−1 at 0.05 A g−1 and 281.4 mAh g−1 at 0.5 A g−1) when used as anode for PIBs. The well-engineered structure not only guarantees the fast electrode reaction kinetics, but also ensures superior pseudocapacitance contribution during repeated cycles, which has been proved by kinetic analysis.


2017 ◽  
Vol 46 (23) ◽  
pp. 7388-7391 ◽  
Author(s):  
Peng-Fei Liu ◽  
Jiao-Jiao Zhou ◽  
Guo-Chang Li ◽  
Meng-Ke Wu ◽  
Kai Tao ◽  
...  

A hierarchical NiO/NiMn-LDH nanosheet array on Ni foam was preparedviaa facile two-step approach and exhibited a high specific capacitance (937 F g−1at 0.5 A g−1) and good cycling stability (91% retention after 1000 cycles at 5 A g−1).


2018 ◽  
Vol 6 (10) ◽  
pp. 4432-4442 ◽  
Author(s):  
Xi Wang ◽  
Chongyang Yang ◽  
Jie Jin ◽  
Xingwei Li ◽  
Qilin Cheng ◽  
...  

The organic asymmetric stretchable SC based on acrylate rubber/MWCNTs@conductive polymers (PDAA and PANI) composite film electrodes exhibits outstanding energy density and good cycling stability under static and 50% strain.


Nanoscale ◽  
2018 ◽  
Vol 10 (36) ◽  
pp. 17327-17334 ◽  
Author(s):  
Jie Pei ◽  
Hongbo Geng ◽  
Edison Huixiang Ang ◽  
Lingling Zhang ◽  
Xueqin Cao ◽  
...  

The hollow three-layered hierarchical nanosphere delivered superior electrochemical ability including high specific capacity, cycling stability and rate performances.


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