scholarly journals A Cr2O3/MWCNTs composite as a superior electrode material for supercapacitor

RSC Advances ◽  
2017 ◽  
Vol 7 (40) ◽  
pp. 25019-25024 ◽  
Author(s):  
Bingwei Chen ◽  
Yanfang Wang ◽  
Chunyang Li ◽  
Lijun Fu ◽  
Xiang Liu ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Specific Capacitance ◽  
Electrode Material ◽  
High Specific Capacitance ◽  
Cycling Stability ◽  
Practical Applications ◽  
Good Cycling Stability

A Cr2O3/MWCNTs composite exhibited high specific capacitance and good cycling stability a in 1 M KOH aqueous solution. This suggests that Cr2O3 can be promising for practical applications in 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.

Metal–organic frameworks based on halogen-bridged dinuclear-Cu-nodes as promising materials for high performance supercapacitor electrodes

CrystEngComm ◽  
2017 ◽  
Vol 19 (47) ◽  
pp. 7177-7184 ◽  
Author(s):  
Xin Xiong ◽  
Liuyin Zhou ◽  
Wenjie Cao ◽  
Jiyuan Liang ◽  
Yazhen Wang ◽  
...  
Keyword(s):  
Specific Capacitance ◽  
High Performance ◽  
Metal Organic Frameworks ◽  
High Specific Capacitance ◽  
Cycling Stability ◽  
Metal Organic ◽  
Good Cycling Stability

Two halogen-bridged di-nuclear Cu-based 3D porous frameworks present high specific capacitance and good cycling stability.

A hierarchical NiO/NiMn-layered double hydroxide nanosheet array on Ni foam for high performance supercapacitors

2017 ◽  
Vol 46 (23) ◽  
pp. 7388-7391 ◽  
Author(s):  
Peng-Fei Liu ◽  
Jiao-Jiao Zhou ◽  
Guo-Chang Li ◽  
Meng-Ke Wu ◽  
Kai Tao ◽  
...  
Keyword(s):  
Specific Capacitance ◽  
Layered Double Hydroxide ◽  
High Performance ◽  
High Specific Capacitance ◽  
Cycling Stability ◽  
Ni Foam ◽  
Nanosheet Array ◽  
Double Hydroxide ◽  
Good Cycling Stability

A hierarchical NiO/NiMn-LDH nanosheet array on Ni foam was preparedviaa facile two-step approach and exhibited a high specific capacitance (937 F g−1at 0.5 A g−1) and good cycling stability (91% retention after 1000 cycles at 5 A g−1).

Highly ordered mesoporous NiCo2O4with superior pseudocapacitance performance for supercapacitors

2015 ◽  
Vol 3 (21) ◽  
pp. 11503-11510 ◽  
Author(s):  
Lei An ◽  
Qilong Ren ◽  
Wenyao Li ◽  
Kaibing Xu ◽  
Yunjiu Cao ◽  
...  
Keyword(s):  
Specific Capacitance ◽  
Electrode Material ◽  
High Specific Capacitance ◽  
Cycling Stability ◽  
Electrochemical Performances ◽  
Ordered Mesoporous ◽  
Excellent Cycling Stability

Highly ordered mesoporous NiCo2O4electrode material exhibited superior electrochemical performances with high specific capacitance and excellent cycling stability.

Hydrothermal synthesis of MoS2 and WS2 nanoparticles for high-performance supercapacitor applications

2018 ◽  
Vol 42 (15) ◽  
pp. 12357-12360 ◽  
Author(s):  
Chandu Nagaraju ◽  
Chandu V. V. Muralee Gopi ◽  
Jin-Woo Ahn ◽  
Hee-Je Kim
Keyword(s):  
Hydrothermal Synthesis ◽  
Specific Capacitance ◽  
High Performance ◽  
Rate Capability ◽  
High Specific Capacitance ◽  
Cycling Stability ◽  
Good Cycling Stability ◽  
Supercapacitor Applications

As-fabricated nanoparticle structured MoS2 and WS2 electrodes delivered high specific capacitance, excellent rate capability and good cycling stability.

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.

MnMoO4·4H2O nanoplates grown on a Ni foam substrate for excellent electrochemical properties

2014 ◽  
Vol 2 (48) ◽  
pp. 20723-20728 ◽  
Author(s):  
Yunjiu Cao ◽  
Wenyao Li ◽  
Kaibing Xu ◽  
Yuxin Zhang ◽  
Tao Ji ◽  
...  
Keyword(s):  
Electrochemical Properties ◽  
Specific Capacitance ◽  
High Performance ◽  
High Specific Capacitance ◽  
Cycling Stability ◽  
Electrochemical Performances ◽  
Ni Foam ◽  
Hydrothermal Route ◽  
Facile Hydrothermal Route ◽  
Good Cycling Stability

MnMoO4·4H2O nanoplates were grown directly on a Ni foam by a facile hydrothermal route with enhanced electrochemical performances, i.e., a high specific capacitance of 1.15 F cm−2 (2300 F g−1) at 4 mA cm−2 and a good cycling stability of 92% of the initial specific capacitance after 3000 cycles, which may be considered a prospective material for high-performance electrochemical capacitors.

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.

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