A simple approach to prepare nickel hydroxide nanosheets for enhanced pseudocapacitive performance

RSC Advances ◽  
2014 ◽  
Vol 4 (37) ◽  
pp. 19476-19481 ◽  
Author(s):  
Anjon Kumar Mondal ◽  
Dawei Su ◽  
Shuangqiang Chen ◽  
Bing Sun ◽  
Kefei Li ◽  
...  
Keyword(s):  
Specific Capacitance ◽  
Nickel Hydroxide ◽  
High Specific Capacitance ◽  
Simple Approach ◽  
Cycling Stability ◽  
Microwave Assisted Synthesis ◽  
Microwave Assisted ◽  
Superior Cycling Stability

A simple microwave-assisted synthesis of Ni(OH)2 nanosheets for supercapacitors with high specific capacitance and superior cycling stability.

Comprehending the effect of MMoO4 (M = Co, Ni) nanoflakes on improving the electrochemical performance of NiO electrodes

2015 ◽  
Vol 44 (48) ◽  
pp. 21131-21140 ◽  
Author(s):  
Lei An ◽  
Wenyao Li ◽  
Yunjiu Cao ◽  
Kaibing Xu ◽  
Rujia Zou ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Specific Capacitance ◽  
High Specific Capacitance ◽  
Cycling Stability ◽  
Nanosheet Array ◽  
Array Electrode

The hierarchical heterostructures of a NiO@MMoO4 (M = Co, Ni) nanosheet array electrode demonstrated remarkable electrochemical performance with a high specific capacitance and predominant cycling stability.

Engineering of electrodeposited binder-free organic-nickel hydroxide based nanohybrids for energy storage and electrocatalytic alkaline water splitting

2020 ◽  
Vol 4 (3) ◽  
pp. 1320-1331 ◽  
Author(s):  
Rohit G. Jadhav ◽  
Devraj Singh ◽  
Shaikh M. Mobin ◽  
Apurba K. Das
Keyword(s):  
Energy Storage ◽  
Specific Capacitance ◽  
Water Splitting ◽  
Nickel Hydroxide ◽  
High Specific Capacitance ◽  
Alkaline Water ◽  
Binder Free

A binder-free electrodeposited organic–inorganic multifunctional nanohybrid electrode exhibits high specific capacitance with electrocatalytic water splitting performance.

N-doped porous carbon derived from walnut shells with enhanced electrochemical performance for supercapacitor

2019 ◽  
Vol 12 (03) ◽  
pp. 1950042 ◽  
Author(s):  
Yunfeng Wang ◽  
Honghui Jiang ◽  
Shewen Ye ◽  
Jiaming Zhou ◽  
Jiahao Chen ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Specific Capacitance ◽  
Porous Carbon ◽  
Low Cost ◽  
High Specific Capacitance ◽  
Cycling Stability ◽  
Electrochemical Performances ◽  
Walnut Shells ◽  
Electrochemical Cycling ◽  
Elemental Doping

As the low-cost, natural multi-component for elemental doping and environment-friendly characteristics, biomass-derived porous carbon for energy storage attracts intense attention. Herein, walnut shells-based porous carbon has been obtained through carbonization, hydrothermal and activation treatment. The corresponding porous carbon owns superior electrochemical performances with specific capacitance reaching up to 462[Formula: see text]F[Formula: see text]g[Formula: see text] at 1[Formula: see text]A[Formula: see text]g[Formula: see text], and shows excellent cycling stability (5000 cycles, [Formula: see text]94.2% of capacitance retention at 10[Formula: see text]A[Formula: see text]g[Formula: see text]). Moreover, the symmetry supercapacitor achieves high specific capacitance (197[Formula: see text]F[Formula: see text]g[Formula: see text] at 1[Formula: see text]A[Formula: see text]g[Formula: see text]), relevant electrochemical cycling stability (5000 cycles, 89.2% of capacitance retention at 5[Formula: see text]A[Formula: see text]g[Formula: see text]) and high power/energy density (42.8[Formula: see text]W[Formula: see text]h[Formula: see text]kg[Formula: see text] at 1249[Formula: see text]W[Formula: see text]kg[Formula: see text]). Therefore, the facile synthesis approach and superb electrochemical performance ensure that the walnut shells-derived porous carbon is a promising electrode material candidate for supercapacitors.

Hierarchical core/shell structures of ZnO nanorod@CoMoO4 nanoplates used as a high-performance electrode for supercapacitors

RSC Advances ◽  
2016 ◽  
Vol 6 (4) ◽  
pp. 3020-3024 ◽  
Author(s):  
Yunjiu Cao ◽  
Lei An ◽  
Lijun Liao ◽  
Xijian Liu ◽  
Tao Ji ◽  
...  
Keyword(s):  
Specific Capacitance ◽  
High Performance ◽  
High Specific Capacitance ◽  
Cycling Stability ◽  
Shell Structures ◽  
Core Shell ◽  
Zno Nanorod ◽  
Good Cycling Stability

ZnO@CoMoO4 core/shell structures as an electrode for supercapacitors exhibited a high specific capacitance of 1.52 F cm−2 (1169 F g−1) at 2 mA cm−2 and a good cycling stability of 109% of the initial specific capacitance after 5000 cycles.

scholarly journals Microwave Assisted Synthesis of MoS2/PANI/ZnO Nanocomposites as a Working Electrode for Energy Storage Applications

2021 ◽  
Vol 33 (7) ◽  
pp. 1585-1593
Author(s):  
J. Balavijayalakshmi ◽  
S. Krithika
Keyword(s):  
Energy Storage ◽  
Specific Capacitance ◽  
Transition Probabilities ◽  
Average Crystallite Size ◽  
Microwave Assisted Synthesis ◽  
Transition Metal Dichalcogenide ◽  
Active Electrode ◽  
Microwave Assisted ◽  
Ft Ir ◽  
Energy Storage Applications

Transition metal dichalcogenide and polyaniline doped zinc oxide nanocomposites influence the transition probabilities and electronic structure. In present study, the various concentrations of MoS2/PANI/ZnO nanocomposites are synthesized by microwave assisted method. These nanocomposites are characterized by using XRD, FESEM, HRTEM and FT-IR. The XRD results revealed an average crystallite size of synthesized nanocomposites, which was found to be 19-24 nm. The electrochemical properties of the nanocomposites are studied through the CV, EIS and GCD for the application of supercapacitor as an active electrode material. The MoS2/PANI/ZnO nanocomposites exhibited a specific capacitance of 577 F g-1 and also retained 90% of its initial specific capacitance even after 5000 cycles. Hence MoS2/PANI/ZnO nanocomposites have potential application for energy storage applications.

scholarly journals Microwave-assisted synthesis of cobalt sulphide nanoparticle clusters on activated graphene foam for electrochemical supercapacitors

RSC Advances ◽  
2017 ◽  
Vol 7 (33) ◽  
pp. 20231-20240 ◽  
Author(s):  
Tshifhiwa Moureen Masikhwa ◽  
Moshawe Jack Madito ◽  
Abdulhakeem Bello ◽  
Joel Lekitima ◽  
Ncholu Manyala
Keyword(s):  
High Specific Capacitance ◽  
Microwave Assisted Synthesis ◽  
Electrochemical Supercapacitors ◽  
Graphene Foam ◽  
Microwave Assisted ◽  
Electrochemical Supercapacitor ◽  
Cobalt Sulphide ◽  
Nanoparticle Clusters ◽  
Scan Rate ◽  
Supercapacitor Applications

Microwave-assisted synthesis of cobalt sulphide (Co9S8) nanoparticles clusters on activated graphene foam (AGF) with high specific capacitance of 1150 F g−1 at a scan rate of 5 mV s−1 as an electrode (Co9S8/AGF) for electrochemical supercapacitor applications.

High supercapacitive performance of Ni(OH)2/XC-72 composite prepared by microwave-assisted method

RSC Advances ◽  
2015 ◽  
Vol 5 (54) ◽  
pp. 43164-43171 ◽  
Author(s):  
Shuihua Tang ◽  
Leping Sui ◽  
Zhen Dai ◽  
Zhentao Zhu ◽  
Haixin Huangfu
Keyword(s):  
Specific Capacitance ◽  
Network Structure ◽  
High Specific Capacitance ◽  
Conductive Network ◽  
Supercapacitive Performance ◽  
Microwave Assisted ◽  
Conductive Agent ◽  
Microwave Assisted Method

A Ni(OH)2/XC-72 composite with CNTs as a conductive agent has a unique 3-D conductive network structure and shows high specific capacitance of 1560 F g−1 at 1 A g−1.

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