Facile synthesis of carbon sphere@Ni(OH)2 and derivatives for high-performance supercapacitors

2016 ◽  
Vol 09 (06) ◽  
pp. 1642002 ◽  
Author(s):  
Qiujian Le ◽  
Tian Wang ◽  
Shijin Zhu ◽  
Junming Zhang ◽  
Yuxin Zhang
Keyword(s):  
Electrical Conductivity ◽  
High Performance ◽  
Synergistic Effects ◽  
High Specific Capacitance ◽  
Carbon Sphere ◽  
Rate Performance ◽  
Facile Synthesis ◽  
Precise Control ◽  
Transportation Process ◽  
Good Cycling Stability

Herein, Ni(OH)2 on carbon sphere nanostructure together with its derivatives, including NiO on carbon sphere, yolk–shell structure of NiO on carbon sphere and hollow NiO, were prepared with precise control and then applied as supercapacitors. Among them, NiO on carbon sphere exhibits a high specific capacitance (270.4[Formula: see text]F g[Formula: see text] at 0.5[Formula: see text]A g[Formula: see text]), excellent rate performance (77.6% retention with 20-time current density increase) and good cycling stability (75.9% retention after 2000 cycles). The results indicate that carbon sphere plays a significant role in enhancing the electrical conductivity and electronic transportation process, ensuring the synergistic effects between carbon sphere and NiO shell.

Facile synthesis of porous Co3O4 nanoflakes as an interlayer for high performance lithium–sulfur batteries

2020 ◽  
Vol 49 (17) ◽  
pp. 5677-5683 ◽  
Author(s):  
Xiao-Xiao Zheng ◽  
Shi-Xi Zhao ◽  
Jin-Lin Yang ◽  
Yi-Ming Lu ◽  
Qi-Long Wu ◽  
...  
Keyword(s):  
High Performance ◽  
Synergistic Effects ◽  
Facile Synthesis ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur

Co3O4 nanoflakes were fabricated using oil bath and calcination methods. Lithium–sulfur batteries with Co3O4–super P interlayer exhibited better performance attributed to the synergistic effects of Co3O4–super P.

Facile synthesis of exfoliated Co–Al LDH–carbon nanotube composites with high performance as supercapacitor electrodes

2014 ◽  
Vol 16 (33) ◽  
pp. 17936-17942 ◽  
Author(s):  
Lei Yu ◽  
Nannan Shi ◽  
Qi Liu ◽  
Jun Wang ◽  
Bin Yang ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Specific Capacitance ◽  
High Performance ◽  
High Specific Capacitance ◽  
Cycle Stability ◽  
Facile Synthesis ◽  
Nanotube Composites ◽  
Carbon Nanotube Composites

A novel sandwich-like structured Co–Al LDH–CNT composite has been successfully synthesized. The as-prepared Co–Al LDHs–CNTs composite exhibites a high specific capacitance and a good cycle stability over 2000 cycles

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 Hierarchical S-doped porous carbon derived from by-product lignin for high-performance supercapacitors

RSC Advances ◽  
2017 ◽  
Vol 7 (20) ◽  
pp. 12089-12097 ◽  
Author(s):  
Jingyang Tian ◽  
Zhangming Liu ◽  
Zhenghui Li ◽  
Wenguang Wang ◽  
Haiyan Zhang
Keyword(s):  
Specific Capacitance ◽  
Porous Carbon ◽  
High Performance ◽  
High Specific Capacitance ◽  
Rate Performance

The S-PC-L-900 exhibits a high specific capacitance and excellent rate performance.

scholarly journals One-step synthesis of mesoporous carbon/ iron sulfide nanocomposite for supercapacitors

2018 ◽  
Vol 9 (1) ◽  
pp. 55-62
Author(s):  
Xiaolong Yu ◽  
Bogang Li
Keyword(s):  
Mesoporous Carbon ◽  
Iron Sulfide ◽  
Negative Electrode ◽  
High Specific Capacitance ◽  
Carbon Sphere ◽  
Rate Performance ◽  
One Step ◽  
Carbon Iron ◽  
Superior Cycling Stability ◽  
Negative Electrode Material

Mesoporous C@FexSy composite as a negative electrode for supercapacitors was synthesized via a one-step hydrothermal treatment followed by an electrodeposition process and its electrochemical properties were studied. Compared with bare carbon sphere, the electrochemical performance of C@FexSy composite was significantly improved, with a high specific capacitance (267.45 F/g), good rate performance (201.08 F/g at 2.5 A/g), and superior cycling stability (almost no capacitance degradation after 1000 cycles). The results show that the obtained C@FexSy composite is a promising negative electrode material for supercapacitors

Functionalization of Carbon Fibers with Nitrogen and Oxygen as High Performance Supercapacitor

2017 ◽  
Vol 20 (4) ◽  
pp. 231-237
Author(s):  
Kun Luo ◽  
Min Zhu ◽  
Yuzheng Zhao ◽  
Zhihong Luo
Keyword(s):  
Plasma Treatment ◽  
Carbon Fibers ◽  
High Performance ◽  
Cold Plasma ◽  
Treatment Time ◽  
High Specific Capacitance ◽  
Treat Ment ◽  
Plasma Treatment Time ◽  
Oxygen Groups ◽  
Good Cycling Stability

Functionalization of carbon materials with heteroatom is highly desirable for high-performance supercapacitor applications. Here, a combined method is used to prepare nitrogen and oxygen co-doped carbon fibers by acidification and N2 cold plasma treatment. Oxygen groups are introduced by acidification, and N2 groups are introduced by N2 cold plasma treatment mainly, moreover, acidification and plasma treatment time promote the increase of nitrogen content. The functionalized CFs obtained by acidification and plasma treat-ment for 60 min has high nitrogen (4.23 at.%) and oxygen (17.48 at.%) content, which shows high specific capacitance (190 F g-1 at 0.2 A g-1) and good cycling stability with maintaining about 83% of initial capacitance after 4000 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.

Facile synthesis of nanostructured Li4Ti5O12/PEDOT:PSS composite as anode material for lithium-ion batteries

RSC Advances ◽  
2016 ◽  
Vol 6 (98) ◽  
pp. 95512-95517 ◽  
Author(s):  
Yan Liu ◽  
Daoping Tang ◽  
Haoxiang Zhong ◽  
Qianyu Zhang ◽  
Jianwen Yang ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Lithium Ion Batteries ◽  
Anode Material ◽  
Lithium Ion ◽  
Rate Performance ◽  
Facile Synthesis

Li4Ti5O12 coated with PEDOT:PSS exhibited enhanced electrical conductivity and rate performance as an anode in lithium ion batteries.

Facile synthesis of core–shell structured Si@graphene balls as a high-performance anode for lithium-ion batteries

Nanoscale ◽  
2020 ◽  
Vol 12 (17) ◽  
pp. 9616-9627 ◽  
Author(s):  
Anif Jamaluddin ◽  
Bharath Umesh ◽  
Fuming Chen ◽  
Jeng-Kuei Chang ◽  
Ching-Yuan Su
Keyword(s):  
Electrical Conductivity ◽  
Lithium Ion Batteries ◽  
Anode Material ◽  
High Performance ◽  
Graphene Nanosheets ◽  
Lithium Ion ◽  
Core Shell ◽  
Facile Synthesis ◽  
Si Nanoparticles ◽  
Stability Issues

Encapsulating silicon (Si) nanoparticles with graphene nanosheets in a microspherical structure is proposed to increase electrical conductivity and solve stability issues when using Si as an anode material in lithium-ion batteries (LIBs).

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).

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