Microwave‐Assisted Synthesis of NiMn 2 O 4 Grown on Nickel Foam as Electrode Material for High‐Performance Supercapacitors

2021 ◽  
Vol 6 (22) ◽  
pp. 5567-5574
Author(s):  
Xiaomei Du ◽  
Liu Yang ◽  
Yingqing Fu ◽  
Sen Liu ◽  
Naibao Huang ◽  
...  
CrystEngComm ◽  
2020 ◽  
Vol 22 (9) ◽  
pp. 1645-1652 ◽  
Author(s):  
Yin Sun ◽  
Junjie Zhang ◽  
Xiannian Sun ◽  
Naibao Huang

Spinel NiMn2O4 microspheres self-assembled with nanosheets directly grown on a 3D nickel foam were successfully prepared by a facile microwave-assisted hydrothermal process.


2018 ◽  
Vol 23 (1) ◽  
pp. 63-72 ◽  
Author(s):  
Shaoming Qiao ◽  
Naibao Huang ◽  
Junjie Zhang ◽  
Yuanyuan Zhang ◽  
Yin Sun ◽  
...  

2019 ◽  
Vol 775 ◽  
pp. 1109-1116 ◽  
Author(s):  
Shaoming Qiao ◽  
Naibao Huang ◽  
Yin Sun ◽  
Junjie Zhang ◽  
Yuanyuan Zhang ◽  
...  

Energies ◽  
2019 ◽  
Vol 12 (6) ◽  
pp. 1143 ◽  
Author(s):  
Anil Yedluri ◽  
Tarugu Anitha ◽  
Hee-Je Kim

Hierarchical NiMoO4/NiMoO4 nanoflowers were fabricated on highly conductive flexible nickel foam (NF) substrates using a facile hydrothermal method to achieve rapid charge-discharge ability, high energy density, long cycling lifespan, and higher flexibility for high-performance supercapacitor electrode materials. The synthesized composite electrode material, NF/NiMoO4/NiMoO4 with a nanoball-like NF/NiMoO4 structure on a NiMoO4 surface over a NF substrate, formed a three-dimensional interconnected porous network for high-performance electrodes. The novel NF/NiMoO4/NiMoO4 nanoflowers not only enhanced the large surface area and increased the electrochemical activity, but also provided an enhanced rapid ion diffusion path and reduced the charge transfer resistance of the entire electrode effectively. The NF/NiMoO4/NiMoO4 composite exhibited significantly improved supercapacitor performance in terms of a sustained cycling life, high specific capacitance, rapid charge-discharge capability, high energy density, and good rate capability. Electrochemical analysis of the NF/NiMoO4/NiMoO4 nanoflowers fabricated on the NF substrate revealed ultra-high electrochemical performance with a high specific capacitance of 2121 F g−1 at 12 mA g−1 in a 3 M KOH electrolyte and 98.7% capacitance retention after 3000 cycles at 14 mA g−1. This performance was superior to the NF/NiMoO4 nanoball electrode (1672 F g−1 at 12 mA g−1 and capacitance retention 93.4% cycles). Most importantly, the SC (NF/NiMoO4/NiMoO4) device displayed a maximum energy density of 47.13 W h kg−1, which was significantly higher than that of NF/NiMoO4 (37.1 W h kg−1). Overall, the NF/NiMoO4/NiMoO4 composite is a suitable material for supercapacitor applications.


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