Rapid in situ growth of β-Ni(OH)2 nanosheet arrays on nickel foam as an integrated electrode for supercapacitors exhibiting high energy density

2020 ◽  
Vol 49 (15) ◽  
pp. 4956-4966 ◽  
Author(s):  
Jingbo Li ◽  
Yu Liu ◽  
Wei Cao ◽  
Nan Chen
Keyword(s):  
Energy Density ◽  
High Performance ◽  
Nickel Foam ◽  
High Energy ◽  
High Energy Density ◽  
In Situ Growth ◽  
Nanosheet Arrays

A rapid in situ method was employed to synthesize the β-Ni(OH)2@NF integrated electrode for a high performance ASC device.

scholarly journals Fabrication of Hierarchical NiMoO4/NiMoO4 Nanoflowers on Highly Conductive Flexible Nickel Foam Substrate as a Capacitive Electrode Material for Supercapacitors with Enhanced Electrochemical Performance

Energies ◽  
2019 ◽  
Vol 12 (6) ◽  
pp. 1143 ◽  
Author(s):  
Anil Yedluri ◽  
Tarugu Anitha ◽  
Hee-Je Kim
Keyword(s):  
Energy Density ◽  
Electrochemical Performance ◽  
Specific Capacitance ◽  
Electrode Material ◽  
High Performance ◽  
Nickel Foam ◽  
High Specific Capacitance ◽  
High Energy ◽  
High Energy Density ◽  
Charge Discharge

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.

scholarly journals In situ construction of yolk–shell zinc cobaltite with uniform carbon doping for high performance asymmetric supercapacitors

2018 ◽  
Vol 6 (19) ◽  
pp. 9109-9115 ◽  
Author(s):  
Xiaoya Chang ◽  
Lei Zang ◽  
Song Liu ◽  
Mengying Wang ◽  
Huinan Guo ◽  
...  
Keyword(s):  
Energy Density ◽  
Power Density ◽  
High Performance ◽  
High Energy ◽  
Carbon Doping ◽  
High Energy Density ◽  
Asymmetric Supercapacitors

Yolk–shell ZnCo2O4 with in situ formed carbon shows great potential for supercapacitors, which delivers high energy density and power density.

A high performance asymmetric supercapacitor based on in situ prepared CuCo2O4 nanowires and PPy nanoparticles on a two-ply carbon nanotube yarn

2018 ◽  
Vol 47 (47) ◽  
pp. 17146-17152 ◽  
Author(s):  
Xiao Liang ◽  
Qiufan Wang ◽  
Yun Ma ◽  
Daohong Zhang
Keyword(s):  
Carbon Nanotube ◽  
Energy Density ◽  
Specific Capacitance ◽  
High Performance ◽  
Negative Electrode ◽  
High Specific Capacitance ◽  
High Energy ◽  
High Energy Density ◽  
Asymmetric Supercapacitor

A two-ply CNT yarn asymmetric supercapacitor was fabricated by assembling a CuCo2O4 nanowire positive electrode and a PPy nanoparticle negative electrode. The full cell exhibits a high specific capacitance of 59.55 mF cm−2 and a high energy density of 0.02 mW h cm−2.

In situ growth of NiCo2S4@Ni3V2O8 on Ni foam as a binder-free electrode for asymmetric supercapacitors

2016 ◽  
Vol 4 (15) ◽  
pp. 5669-5677 ◽  
Author(s):  
Lengyuan Niu ◽  
Yidan Wang ◽  
Fengping Ruan ◽  
Cheng Shen ◽  
Shen Shan ◽  
...  
Keyword(s):  
Energy Density ◽  
High Energy ◽  
High Energy Density ◽  
Asymmetric Supercapacitor ◽  
High Power Density ◽  
In Situ Growth ◽  
Ni Foam ◽  
Asymmetric Supercapacitors ◽  
Binder Free

A NiCo2S4@Ni3V2O8//AC asymmetric supercapacitor was successfully fabricated and it can deliver both high energy density and high power density.

Synthesis of Sn–Co@PMMA nanowire arrays by electrodeposition and in situ polymerization as a high performance lithium-ion battery anode

RSC Advances ◽  
2015 ◽  
Vol 5 (116) ◽  
pp. 95488-95494 ◽  
Author(s):  
Haowen Meng ◽  
Hongyan Yang ◽  
Xiaohui Yu ◽  
Peng Dou ◽  
Daqian Ma ◽  
...  
Keyword(s):  
Energy Density ◽  
Lithium Ion Batteries ◽  
High Performance ◽  
In Situ Polymerization ◽  
Lithium Ion ◽  
High Energy ◽  
Nanowire Arrays ◽  
High Energy Density ◽  
Battery Anode

Transition metals have attracted much attention due to their high energy density in lithium-ion batteries (LIBs).

Nanostructured porous wires of iron cobaltite: novel positive electrode for high-performance hybrid energy storage devices

2015 ◽  
Vol 3 (32) ◽  
pp. 16849-16859 ◽  
Author(s):  
Afshin Pendashteh ◽  
Jesus Palma ◽  
Marc Anderson ◽  
Rebeca Marcilla
Keyword(s):  
Energy Storage ◽  
Energy Density ◽  
High Performance ◽  
Nickel Foam ◽  
High Energy ◽  
High Energy Density ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Hybrid Energy ◽  
Hybrid Energy Storage

Nanostructured porous wires of FeCo2O4 supported on nickel foam were synthesized and employed as binder/additive-free electrodes in asymmetric aqueous supercapacitors, showing a high energy density of 23 Wh kg−1.

Controllable synthesis of 3D binary nickel–cobalt hydroxide/graphene/nickel foam as a binder-free electrode for high-performance supercapacitors

2015 ◽  
Vol 3 (23) ◽  
pp. 12530-12538 ◽  
Author(s):  
Yang Bai ◽  
Weiqi Wang ◽  
Ranran Wang ◽  
Jing Sun ◽  
Lian Gao
Keyword(s):  
Energy Density ◽  
High Performance ◽  
Nickel Foam ◽  
High Energy ◽  
High Energy Density ◽  
Cobalt Hydroxide ◽  
Controllable Synthesis ◽  
Nickel Cobalt ◽  
Binder Free

Graphene facilitates the formation of a 3D porous binder-free electrode with controllable morphology for high energy density supercapacitors.

High performance two-ply carbon nanocomposite yarn supercapacitors enhanced with a platinum filament and in situ polymerized polyaniline nanowires

2016 ◽  
Vol 4 (10) ◽  
pp. 3828-3834 ◽  
Author(s):  
Qiufan Wang ◽  
Yunlong Wu ◽  
Ting Li ◽  
Daohong Zhang ◽  
Menghe Miao ◽  
...  
Keyword(s):  
Energy Density ◽  
Specific Capacitance ◽  
High Performance ◽  
High Specific Capacitance ◽  
High Energy ◽  
High Energy Density ◽  
Composite Electrodes ◽  
Polyaniline Nanowires ◽  
Carbon Nanocomposite

A two-ply yarn supercapacitor fabricated from Pt/CNT@PANI nanowire composite electrodes exhibits a high specific capacitance of 91.67 mF cm−2and a high energy density of 12.68 μW h cm−2.

Construction of MOF-derived hollow Ni–Zn–Co–S nanosword arrays as binder-free electrodes for asymmetric supercapacitors with high energy density

Nanoscale ◽  
2018 ◽  
Vol 10 (29) ◽  
pp. 14171-14181 ◽  
Author(s):  
Youzhang Huang ◽  
Liang Quan ◽  
Tianqing Liu ◽  
Qidi Chen ◽  
Daoping Cai ◽  
...  
Keyword(s):  
Energy Density ◽  
High Performance ◽  
Nickel Foam ◽  
High Energy ◽  
High Energy Density ◽  
Great Promise ◽  
Step Method ◽  
Asymmetric Supercapacitors ◽  
Binder Free

Mesoporous and hollow Ni–Zn–Co–S nanosword arrays (NSAs) have been successfully grown on nickel foam (NF) through a simple two-step method, which would hold great promise for high-performance supercapacitors.

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