A Ni-P@NiCo LDH core–shell nanorod-decorated nickel foam with enhanced areal specific capacitance for high-performance supercapacitors

2017 ◽  
Vol 46 (30) ◽  
pp. 10064-10072 ◽  
Author(s):  
Jiale Xing ◽  
Jing Du ◽  
Xuan Zhang ◽  
Yubo Shao ◽  
Ting Zhang ◽  
...  

In this study, nickel phosphide (Ni-P) was combined with NiCo LDH via facile phosphorization of Ni foam and subsequent electrodeposition, forming core–shell nanorod arrays on Ni foam. The obtained Ni-P@NiCo LDH delivered excellent capacitive performance.

RSC Advances ◽  
2016 ◽  
Vol 6 (72) ◽  
pp. 68460-68467 ◽  
Author(s):  
Jie Gao ◽  
Xiuhua Wang ◽  
Xiuqin Wang ◽  
Ronghui Que ◽  
Yao Fang ◽  
...  

Hierarchical polypyrrole/Ni3S2@MoS2 core–shell nanostructures have been successfully designed and constructed on a Ni foam substrate through a facile two-step solution synthesis protocol and exhibit high performance as a supercapacitor.


Nano Energy ◽  
2014 ◽  
Vol 7 ◽  
pp. 151-160 ◽  
Author(s):  
Jin Wang ◽  
Dongliang Chao ◽  
Jilei Liu ◽  
Linlin Li ◽  
Linfei Lai ◽  
...  

RSC Advances ◽  
2021 ◽  
Vol 11 (50) ◽  
pp. 31557-31565
Author(s):  
Rodrigo Henríquez ◽  
Alifhers S. Mestra-Acosta ◽  
Eduardo Muñoz ◽  
Paula Grez ◽  
Elena Navarrete-Astorga ◽  
...  

This work presents for the first time a CdCO3/CdO/Co3O4@nickel foam based supercapacitor with high both specific capacitance and energy density, a widespread potential window and a long cycle life.


2020 ◽  
Vol 7 (2) ◽  
pp. 427-436 ◽  
Author(s):  
Yan Zhou ◽  
Shihang Zhao ◽  
Xianbo Yu ◽  
Yanli Li ◽  
Hongmei Chen ◽  
...  

Core–cell Cu7S4@Ni(OH)2 nanorod arrays were fabricated by using metal–organic frameworks as templates, and showed high specific capacitance, superior rate capacity and excellent cycling stability for supercapacitors.


2015 ◽  
Vol 3 (28) ◽  
pp. 14578-14584 ◽  
Author(s):  
Zhengxiang Gu ◽  
Ruanfeng Wang ◽  
Honghong Nan ◽  
Baoyou Geng ◽  
Xiaojun Zhang

In this work, hierarchical Co3O4@CoMoO4 core/shell nanowire arrays on nickel foam are fabricated by a facile hydrothermal ion exchange method.


RSC Advances ◽  
2018 ◽  
Vol 8 (55) ◽  
pp. 31594-31602 ◽  
Author(s):  
Xiaobo Chen ◽  
Xiao Liu ◽  
Yongxu Liu ◽  
Yameng Zhu ◽  
Guoce Zhuang ◽  
...  

CoMn2O4@Co3O4 core/shell arrays on Ni foam exhibit outstanding electrochemical performance for asymmetric supercapacitors with respect to high specific capacitance and high cycling stability.


2021 ◽  
Author(s):  
Nanasaheb M. Shinde ◽  
Siddheshwar D. Raut ◽  
Balaji G. Ghule ◽  
Krishna Chaitanya Gunturu ◽  
James J. Pak ◽  
...  

A promising electrode for hydrogen evolution reaction (HER) has been prepared via a reduction process to form NiF2 nanorod arrays directly grown on a 3D nickel foam.


2021 ◽  
Vol 35 ◽  
pp. 102319
Author(s):  
Tao Wang ◽  
Weibing Ma ◽  
Yuxin Zhang ◽  
Jingdong Guo ◽  
Tingting Li ◽  
...  

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.


Author(s):  
Zeyuan Hu ◽  
Yidong Miao ◽  
Xiaolan Xue ◽  
Bin Xiao ◽  
Jiqiu Qi ◽  
...  

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