scholarly journals Ultrathin porous NiO nanoflake arrays on nickel foam as an advanced electrode for high performance asymmetric supercapacitors

2016 ◽  
Vol 4 (23) ◽  
pp. 9113-9123 ◽  
Author(s):  
Shuxing Wu ◽  
K. S. Hui ◽  
K. N. Hui ◽  
Kwang Ho Kim

We report ultrathin porous NiO nanoflake arrays on nickel foam as an advanced electrode, which exhibits excellent electrochemical performance in supercapacitors.

2015 ◽  
Vol 3 (43) ◽  
pp. 21569-21577 ◽  
Author(s):  
Zhaoqiang Li ◽  
Longwei Yin

A MOF composite GO/Zn–Co–ZIF/nickel foam derived RGO/ZnCo2O4–ZnO–C/Ni sandwich-like anode exhibits excellent electrochemical performance as a binder-free anode for LIBs.


RSC Advances ◽  
2017 ◽  
Vol 7 (2) ◽  
pp. 1038-1044 ◽  
Author(s):  
Yansong Gai ◽  
Yuanyuan Shang ◽  
Liangyu Gong ◽  
Linghao Su ◽  
Long Hao ◽  
...  

Porous ZnCo2O4 microspheres with excellent electrochemical performance were prepared via a facial self-template solvothermal method for application in supercapacitors.


Nanoscale ◽  
2020 ◽  
Vol 12 (7) ◽  
pp. 4655-4666 ◽  
Author(s):  
Alan Meng ◽  
Xiangcheng Yuan ◽  
Tong Shen ◽  
Jian Zhao ◽  
Guanying Song ◽  
...  

Amorphous nickel sulfide nanoparticles electrodeposited on N-doped graphene nanotubes exhibit excellent electrochemical performance for asymmetric supercapacitors and the OER.


2019 ◽  
Vol 43 (26) ◽  
pp. 10583-10589 ◽  
Author(s):  
Awais Ali ◽  
Muhammad Ammar ◽  
Zaid Yahya ◽  
Muhammad Waqas ◽  
Muhammad Ali Jamal ◽  
...  

In this work, a honeycomb-like ZnO/SnO2 nanocomposite was synthesized on nickel foam (NF) using a single-step hydrothermal route for achieving good electrochemical performance.


2017 ◽  
Vol 5 (44) ◽  
pp. 23349-23360 ◽  
Author(s):  
Jun Huang ◽  
Junchao Wei ◽  
Yazhou Xu ◽  
Yingbo Xiao ◽  
Yiwang Chen

A pinecone-inspired hierarchical CNFs/NiCo2S4@PPy electrode was elaborately engineered to achieve excellent electrochemical performance due to the favorable structural design.


2020 ◽  
Vol 7 (19) ◽  
pp. 3646-3656
Author(s):  
Kai Le ◽  
Mengjiao Gao ◽  
Dongmei Xu ◽  
Zhou Wang ◽  
Guanwen Wang ◽  
...  

A Co2V2O7/G composite with MOF-derived hollow Co2V2O7 nanocages uniformly distributed on graphene exhibits excellent electrochemical performance for supercapacitors.


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.


RSC Advances ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 6798-6803
Author(s):  
Linchao Zeng ◽  
Jianhui Zhu ◽  
Minsu Liu ◽  
Peixin Zhang

Antimony nanosheet modified separator is prepared for high performance Li–S batteries for the first time.


Nano Research ◽  
2018 ◽  
Vol 11 (3) ◽  
pp. 1415-1425 ◽  
Author(s):  
Weidong He ◽  
Zhifu Liang ◽  
Keyu Ji ◽  
Qingfeng Sun ◽  
Tianyou Zhai ◽  
...  

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