A self-supported, flexible, binder-free pseudo-supercapacitor electrode material with high capacitance and cycling stability from hollow, capsular polypyrrole fibers

2015 ◽  
Vol 3 (31) ◽  
pp. 16162-16167 ◽  
Author(s):  
Zhenyu Li ◽  
Jie Cai ◽  
Pavel Cizek ◽  
Haitao Niu ◽  
Yong Du ◽  
...  
Keyword(s):  
Electrode Material ◽  
Cycling Stability ◽  
Supercapacitor Electrode ◽  
High Capacitance ◽  
Binder Free ◽  
Excellent Cycling Stability

A hollow capsular polypyrrole nanofiber has shown great potential for preparing pseudo-supercapacitor electrodes with high capacitance and excellent cycling stability.

Flower-like polyaniline–NiO structures: a high specific capacity supercapacitor electrode material with remarkable cycling stability

RSC Advances ◽  
2016 ◽  
Vol 6 (50) ◽  
pp. 43959-43963 ◽  
Author(s):  
Bangning Sun ◽  
Xinping He ◽  
Xijin Leng ◽  
Yang Jiang ◽  
Yudong Zhao ◽  
...  
Keyword(s):  
Electrode Material ◽  
Nickel Foam ◽  
Specific Capacity ◽  
Cycling Stability ◽  
Supercapacitor Electrode ◽  
High Specific Capacity ◽  
Binder Free

In this study, we report a binder-free in situ approach to synthesize a polyaniline–NiO composite on a nickel foam as a supercapacitor electrode.

Copolymer derived micro/meso-porous carbon nanofibers with vacancy-type defects for high-performance supercapacitors

2020 ◽  
Vol 8 (5) ◽  
pp. 2463-2471 ◽  
Author(s):  
Jiye Li ◽  
Weimiao Zhang ◽  
Xu Zhang ◽  
Liyao Huo ◽  
Jiayi Liang ◽  
...  
Keyword(s):  
Specific Capacitance ◽  
Carbon Nanofibers ◽  
Electrode Material ◽  
Porous Carbon ◽  
High Performance ◽  
High Specific Capacitance ◽  
Cycling Stability ◽  
Supercapacitor Electrode ◽  
Excellent Cycling Stability

Micro/meso-porous carbon nanofibers have been successfully prepared and directly adopted as a supercapacitor electrode material with high specific capacitance, area normalized capacitance and excellent cycling stability.

Synthesis of Graphene Nanoplatelets/Polythiophene as a High Performance Supercapacitor Electrode Material

2021 ◽  
Author(s):  
Yaseen Muhammad ◽  
Ata ur Rahman ◽  
Hamsa Noreen ◽  
Zeeshan Nawaz ◽  
Javed Iqbal Saggu ◽  
...  
Keyword(s):  
Electrode Material ◽  
High Performance ◽  
Graphene Nanoplatelets ◽  
Supercapacitor Electrode ◽  
High Capacitance

The preparation of a stable, efficient, inexpensive and high capacitance electrode material for supercapacitors is posing great challenges for the researchers. In this report, we demonstrate the synthesis of stable,...

Influences of trace graphite on the morphology and capacitance of CoOOH/Co(OH)2 nanocomposites

2020 ◽  
Vol 13 (03) ◽  
pp. 2050018 ◽  
Author(s):  
Shuxia Liu ◽  
Xiaoqi Tan ◽  
Huaiping Zhang ◽  
Yaodong Zhang ◽  
Baobi Li ◽  
...  
Keyword(s):  
Electrochemical Properties ◽  
Electrode Material ◽  
Cycling Stability ◽  
Microwave Method ◽  
Graphite Content ◽  
One Step ◽  
Excellent Cycling Stability ◽  
Graphite Nanocomposites

In this study, CoOOH/Co(OH)2 and CoOOH/Co(OH)2/graphite nanocomposites were obtained using a one-step microwave method. The morphologies of nanocomposites changed intensively by adding trace graphite, thereby affecting the electrochemical properties. The optimum capacitance of the electrode material can reach 402[Formula: see text]F[Formula: see text]g[Formula: see text] at 2[Formula: see text]A[Formula: see text]g[Formula: see text] and could be increased by 172% (692[Formula: see text]F[Formula: see text]g[Formula: see text] until 2200 cycles when the graphite content is 10[Formula: see text]mg. An excellent cycling stability of 86.2% capacitance retention of the highest value was attained after 10,000 cycles, which is higher than those of the CoOOH/Co(OH)2 electrode. The proposed provides a simple means to improve the electrochemical properties by changing the morphology of electrode material in supercapacitors.

Synthesis of polypyrrole–titanium dioxide brush-like nanocomposites with enhanced supercapacitive performance

RSC Advances ◽  
2014 ◽  
Vol 4 (109) ◽  
pp. 63719-63724 ◽  
Author(s):  
Yan Gao ◽  
Yanzhou Wang ◽  
Xin Xu ◽  
Kun Ding ◽  
Demei Yu
Keyword(s):  
Titanium Dioxide ◽  
Electrochemical Performance ◽  
Electrode Material ◽  
Cycling Stability ◽  
Supercapacitive Performance ◽  
Excellent Cycling Stability ◽  
Enhanced Electrochemical Performance

Polypyrrole–titanium dioxide brush-like nanocomposites show enhanced electrochemical performance and excellent cycling stability as an electrode material for supercapacitors.

Co3O4 nanocrystals derived from a zeolitic imidazolate framework on Ni foam as high-performance supercapacitor electrode material

RSC Advances ◽  
2016 ◽  
Vol 6 (66) ◽  
pp. 61803-61808 ◽  
Author(s):  
Jinlin Yang ◽  
Fuxiang Wei ◽  
Yanwei Sui ◽  
Jiqiu Qi ◽  
Yezeng He ◽  
...  
Keyword(s):  
Electrode Material ◽  
High Performance ◽  
Ni Foam ◽  
Supercapacitor Electrode ◽  
Zeolitic Imidazolate Framework ◽  
Binder Free

A binder-free method was adopted to obtain a Ni foam/Co3O4 electrode.

A 3D walking palm-like core–shell CoMoO4@NiCo2S4@nickel foam composite for high-performance supercapacitors

2019 ◽  
Vol 48 (12) ◽  
pp. 3853-3861 ◽  
Author(s):  
Iftikhar Hussain ◽  
Awais Ali ◽  
Charmaine Lamiel ◽  
Saad Gomaa Mohamed ◽  
Sumanta Sahoo ◽  
...  
Keyword(s):  
Electrode Material ◽  
High Performance ◽  
Nickel Foam ◽  
Positive Electrode ◽  
Core Shell ◽  
High Capacitance ◽  
Positive Electrode Material ◽  
Foam Composite ◽  
Binder Free ◽  
Excellent Stability

3D core–shell binder-free CoMoO4@NiCo2S4@NF with excellent stability and high capacitance was developed as a positive electrode material for supercapacitors.

A novel Ni3N/graphene nanocomposite as supercapacitor electrode material with high capacitance and energy density

2015 ◽  
Vol 3 (32) ◽  
pp. 16633-16641 ◽  
Author(s):  
Yu Yu ◽  
Wenyu Gao ◽  
Zongxu Shen ◽  
Qing Zheng ◽  
Hao Wu ◽  
...  
Keyword(s):  
Reaction Mechanism ◽  
Energy Density ◽  
Electrode Material ◽  
Reduction Reaction ◽  
Supercapacitor Electrode ◽  
High Capacitance ◽  
Oxidation Reduction ◽  
Oxidation Reduction Reaction ◽  
Graphene Nanocomposite

A novel Ni3N/graphene nanocomposite has been synthesized as pseudo supercapacitor electrode material with high capacitance and energy density, due to its unique two-step oxidation/reduction reaction mechanism.

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