Facile preparation of nanoflake MnNi2O4–PbS nanoparticle composites on Ni foam as advanced electrode materials for supercapacitors

2018 ◽  
Vol 42 (17) ◽  
pp. 14157-14162 ◽  
Author(s):  
Tae-Yong Park ◽  
Chandu V. V. Muralee Gopi ◽  
Jin-Woo Ahn ◽  
Hee-Je Kim

Nanoparticle decorated nanoflake-like structures of MnNi2O4–PbS composites exhibit superior supercapacitor performance to the MnNi2O4 electrode.

2020 ◽  
Vol 44 (11) ◽  
pp. 4266-4275 ◽  
Author(s):  
Yedluri Anil Kumar ◽  
Saurabh Singh ◽  
Prem Jyoti Singh Rana ◽  
Kulurumotlakatla Dasha Kumar ◽  
Hee-Je Kim

Schematic illustration of the two-step synthesis of MgCo2O4/MgCo2O4 directly grown on Ni foam.


2017 ◽  
Vol 23 (17) ◽  
pp. 4128-4136 ◽  
Author(s):  
Xiaobing Wang ◽  
Jiangjiang Hu ◽  
Yichang Su ◽  
Jin Hao ◽  
Fanggang Liu ◽  
...  

2021 ◽  
Author(s):  
Mingjie Li ◽  
Xuan Zheng ◽  
Xiang Li ◽  
Youjun Yu ◽  
Jinlong Jiang

Recently, transition metal selenides have been investigated extensively as promising electrode materials for high-performance supercapacitors. Herein, the multi-component CoSe2/CNTs@g-C3N4 composites are prepared using a two-step hydrothermal method by incorporating one-dimensional...


2021 ◽  
Author(s):  
Yucai Li ◽  
Yan Zhao ◽  
Shiwei Song ◽  
Jian wang

Abstract Core-shell structured NiCo2S4@NiMoO4 is considered to be one of the most promising electrode materials for supercapacitors due to its high specific capacitance and excellent cycle performance. In this work, we report NiCo2S4@NiMoO4 nanosheets on Ni foam by two-step fabricated method. The as-obtained product has high capacitance of 1102.5 F g− 1 at 1 A g− 1. The as-assembled supercapacitor has also a high energy density of 37.6 W h kg− 1 and superior cycle performance with 85% capacitance retention. The electrode materials reported here might exhibits potential applications in future energy storage devices.


2017 ◽  
Vol 41 (24) ◽  
pp. 14906-14913 ◽  
Author(s):  
Yang Liu ◽  
Xiaoming Zhou ◽  
Rong Liu ◽  
Xiaolong Li ◽  
Yang Bai ◽  
...  

Fabrication of highly durable and compressible electrode materials for supercapacitors has been vital to promote the use of elastic electronics and deformation-tolerant devices.


2016 ◽  
Vol 4 (33) ◽  
pp. 12929-12939 ◽  
Author(s):  
Xiaobing Wang ◽  
Jin Hao ◽  
Yichang Su ◽  
Fanggang Liu ◽  
Jian An ◽  
...  

Multi-layer NixZn1−xS/Ni foam composites were synthesized by a one-step hydrothermal reaction generating in situ growth on the Ni foam. The doping of Zn into the NixZn1−xS/Ni composite constructs the multi-layer nanostructure. The as-fabricated Ni1−xZnxS/Ni foam-2 h supercapacitor electrode shows outstanding rate properties.


Molecules ◽  
2021 ◽  
Vol 26 (17) ◽  
pp. 5394
Author(s):  
Leyuan Li ◽  
Hongtian Mi ◽  
Yuhong Jin ◽  
Dayong Ren ◽  
Kailing Zhou ◽  
...  

Metal organic frameworks (MOFs) have been considered as one of the most promising electrode materials for electrochemical capacitors due to their large specific surface area and abundant pore structure. Herein, we report a Co-MOF electrode with a vertical-standing 2D parallelogram-like nanoarray structure on a Ni foam substrate via a one-step solvothermal method. The as-prepared Co-MOF on a Ni foam electrode delivered a high area-specific capacitance of 582.0 mC cm−2 at a current density of 2 mA cm−2 and a good performance rate of 350.0 mC cm−2 at 50 mA cm−2. Moreover, an asymmetric electrochemical capacitor (AEC) device (Co-MOF on Ni foam//AC) was assembled by using the as-prepared Co-MOF on a Ni foam as the cathode and a active carbon-coated Ni foam as the anode to achieve a maximum energy density of 0.082 mW cm−2 at a power density of 0.8 mW cm−2, which still maintained 0.065 mW cm−2 at a high power density of 11.94 mW cm−2. Meanwhile, our assembled device exhibited an excellent cycling stability with a capacitance retention of nearly 100% after 1000 cycles. Therefore, this work provides a simple method to prepare MOF-based material for the application of energy storage and conversion.


2015 ◽  
Vol 3 (5) ◽  
pp. 1953-1960 ◽  
Author(s):  
Lingjie Li ◽  
Jing Xu ◽  
Jinglei Lei ◽  
Jie Zhang ◽  
Frank McLarnon ◽  
...  

The Ni(OH)2 hexagonal platelets were in situ fabricated on Ni foam as a binder-free supercapacitor electrode material with high performance and excellent cycling stability by a one-step, cost-effective, green hydrothermal treatment of three-dimensional (3D) Ni foam in a 15 wt% H2O2 aqueous solution.


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