Improving supercapacitor performance of alkylated graphene nanosheets via partial fluorination on their alkyl chains

RSC Advances ◽  
2015 ◽  
Vol 5 (112) ◽  
pp. 92159-92164 ◽  
Author(s):  
Gang Zhao ◽  
Fu-Gang Zhao ◽  
Jianqing Sun ◽  
Yang Lu ◽  
Wei Wang ◽  
...  
Keyword(s):  
Specific Capacitance ◽  
Graphene Nanosheets ◽  
Cycling Stability ◽  
Graphene Sheets ◽  
Alkyl Chains ◽  
Supercapacitor Performance ◽  
Good Cycling Stability

Graphene sheets modified with partially fluorinated alkyl chains showed better supercapacitor performance than alkylated analogues. The best performance was achieved with a specific capacitance of 388.0 F g−1 at 1 A g−1 and good cycling stability.

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.

Cobalt sulfide nanoparticles impregnated nitrogen and sulfur co-doped graphene as bifunctional catalyst for rechargeable Zn–air batteries

RSC Advances ◽  
2015 ◽  
Vol 5 (10) ◽  
pp. 7280-7284 ◽  
Author(s):  
Dongsheng Geng ◽  
Ni-Ni Ding ◽  
T. S. Andy Hor ◽  
Sheau Wei Chien ◽  
Zhaolin Liu ◽  
...  
Keyword(s):  
Graphene Nanosheets ◽  
Bifunctional Catalyst ◽  
Cycling Stability ◽  
Cobalt Sulfide ◽  
Water Based ◽  
Doped Graphene ◽  
Good Cycling Stability ◽  
Co Doped

Cobalt sulfide nanoparticle impregnated nitrogen and sulfur co-doped graphene nanosheets synthesized in water-based media equip Zn–air batteries with good cycling stability.

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.

scholarly journals Facile synthesis and characterization of ultrathin δ-MnO2 nanoflakes

RSC Advances ◽  
2017 ◽  
Vol 7 (88) ◽  
pp. 55734-55740 ◽  
Author(s):  
Xiang Chen ◽  
Shaojiu Yan ◽  
Nan Wang ◽  
Sikan Peng ◽  
Chen Wang ◽  
...  
Keyword(s):  
Specific Capacitance ◽  
Cycling Stability ◽  
Synthesis And Characterization ◽  
Facile Synthesis ◽  
Good Cycling Stability ◽  
Facile Route

Ultrathin δ-MnO2 nanoflakes were synthesized via a facile route and present excellent specific capacitance and good cycling stability.

Preparation of urchin-like NiCo2O4 material and studies of its electrochemical performance for supercapacitors

2019 ◽  
Vol 12 (03) ◽  
pp. 1950026 ◽  
Author(s):  
Lili Wang ◽  
Yanxia Huang ◽  
Xiaoshan Li ◽  
Hang Ma ◽  
Chenghang You ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Specific Capacitance ◽  
Hydrothermal Process ◽  
Rate Capability ◽  
Cycling Stability ◽  
A Value ◽  
Excellent Electrochemical Performance ◽  
Good Cycling Stability ◽  
Good Rate Capability

The paper reports a kind of NiCo2O4 material with urchin-like morphology. This material was prepared using a facile strategy of hydrothermal process followed by calcinations, and exhibits an excellent electrochemical performance. For example, it delivers a specific capacitance high up to 1167[Formula: see text]Fg[Formula: see text] at 1[Formula: see text]Ag[Formula: see text] and still retains a value of 1095[Formula: see text]Fg[Formula: see text] at 10[Formula: see text]Ag[Formula: see text], showing a good rate capability; after suffering from 3000 cycles at 10[Formula: see text]A[Formula: see text]g[Formula: see text], the specific capacitance has only a decay of 12%, presenting a 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).

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.

Reduced graphene oxide/Ni1−xCoxAl-layered double hydroxide composites: preparation and high supercapacitor performance

2014 ◽  
Vol 43 (30) ◽  
pp. 11667-11675 ◽  
Author(s):  
Jie Xu ◽  
Shili Gai ◽  
Fei He ◽  
Na Niu ◽  
Peng Gao ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Specific Capacitance ◽  
Reduced Graphene Oxide ◽  
Layered Double Hydroxide ◽  
Hybrid Composite ◽  
Cycling Stability ◽  
Reduced Graphene ◽  
Supercapacitor Performance ◽  
Excellent Cycling Stability ◽  
Double Hydroxide

A novel sandwich-structured rGO/Ni0.83Co0.17Al-LDH hybrid composite exhibits high supercapacitor performance, with a specific capacitance of 1902 F g−1 at 1 A g−1, 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.

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