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

Nano-sized cobalt oxide/mesoporous carbon sphere composites as negative electrode material for lithium-ion batteries

2008 ◽  
Vol 53 (22) ◽  
pp. 6497-6503 ◽  
Author(s):  
Hai-jing Liu ◽  
Shou-hang Bo ◽  
Wang-jun Cui ◽  
Feng Li ◽  
Cong-xiao Wang ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Cobalt Oxide ◽  
Electrode Material ◽  
Mesoporous Carbon ◽  
Negative Electrode ◽  
Lithium Ion ◽  
Carbon Sphere ◽  
Negative Electrode Material

Nitrogen-doped ordered mesoporous carbon single crystals: aqueous organic–organic self-assembly and superior supercapacitor performance

2015 ◽  
Vol 3 (47) ◽  
pp. 24041-24048 ◽  
Author(s):  
Guozhu Shen ◽  
Xiaoran Sun ◽  
Hongwei Zhang ◽  
Yang Liu ◽  
Jun Zhang ◽  
...  
Keyword(s):  
Single Crystals ◽  
Self Assembly ◽  
Mesoporous Carbon ◽  
High Specific Capacitance ◽  
Ordered Mesoporous Carbon ◽  
Rate Performance ◽  
Nitrogen Doped ◽  
Ordered Mesoporous ◽  
Supercapacitor Performance ◽  
Resultant Material

Nitrogen-doped ordered mesoporous carbon single crystals have been synthesized. The resultant material shows high specific capacitance, excellent rate performance, and outstanding cycling stability in EDLCs.

scholarly journals Functional Carbon Nanotube/Mesoporous Carbon/MnO2Hybrid Network for High-Performance Supercapacitors

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Tao Tao ◽  
Ling Zhang ◽  
Hao Jiang ◽  
Chunzhong Li
Keyword(s):  
Carbon Nanotube ◽  
Mesoporous Carbon ◽  
High Performance ◽  
Discharge Rate ◽  
High Specific Capacitance ◽  
Hybrid Network ◽  
Rate Performance ◽  
Carbon Networks ◽  
Electrodes For Supercapacitors ◽  
Facile Route

A functional carbon nanotube/mesoporous carbon/MnO2hybrid network has been developed successfully through a facile route. The resulting composites exhibited a high specific capacitance of 351 F/g at 1 A g−1, with intriguing charge/discharge rate performance and cycling stability due to a synergistic combination of large surface area and excellent electron-transport capabilities of MnO2with the good conductivity of the carbon nanotube/mesoporous carbon networks. Such composite shows great potential to be used as electrodes for supercapacitors.

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.

TiO2(B) Nanoribbons As Negative Electrode Material for Lithium Ion Batteries with High Rate Performance

2010 ◽  
Vol 49 (18) ◽  
pp. 8457-8464 ◽  
Author(s):  
Thomas Beuvier ◽  
Mireille Richard-Plouet ◽  
Maryline Mancini-Le Granvalet ◽  
Thierry Brousse ◽  
Olivier Crosnier ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Electrode Material ◽  
Negative Electrode ◽  
Lithium Ion ◽  
High Rate ◽  
Rate Performance ◽  
High Rate Performance ◽  
Negative Electrode Material

One-step synthesis of polyhydroquinone–graphene hydrogel composites for high performance supercapacitors

2015 ◽  
Vol 3 (31) ◽  
pp. 16033-16039 ◽  
Author(s):  
Libin Chen ◽  
Jifeng Wu ◽  
Aijuan Zhang ◽  
Anan Zhou ◽  
Zhifeng Huang ◽  
...  
Keyword(s):  
Specific Capacitance ◽  
High Performance ◽  
Electrode Materials ◽  
High Specific Capacitance ◽  
Rate Performance ◽  
One Step ◽  
Hydrogel Composites

Polyhydroquinone–graphene hydrogel composites were prepared via a one-step reaction, and showed high specific capacitance and rate performance as electrode materials for supercapacitors.

scholarly journals A Hierarchically Ordered Mesoporous-Carbon-Supported Iron Sulfide Anode for High-Rate Na-Ion Storage

Molecules ◽  
2021 ◽  
Vol 26 (14) ◽  
pp. 4349
Author(s):  
Anupriya K. Haridas ◽  
Natarajan Angulakshmi ◽  
Arul Manuel Stephan ◽  
Younki Lee ◽  
Jou-Hyeon Ahn
Keyword(s):  
Mesoporous Carbon ◽  
Anode Materials ◽  
Iron Sulfide ◽  
Carbon Composite ◽  
Ordered Mesoporous Carbon ◽  
Cycle Life ◽  
High Rate ◽  
Volume Changes ◽  
Ordered Mesoporous ◽  
Ion Storage

Sodium-ion batteries (SIBs) are promising alternatives to lithium-based energy storage devices for large-scale applications, but conventional lithium-ion battery anode materials do not provide adequate reversible Na-ion storage. In contrast, conversion-based transition metal sulfides have high theoretical capacities and are suitable anode materials for SIBs. Iron sulfide (FeS) is environmentally benign and inexpensive but suffers from low conductivity and sluggish Na-ion diffusion kinetics. In addition, significant volume changes during the sodiation of FeS destroy the electrode structure and shorten the cycle life. Herein, we report the rational design of the FeS/carbon composite, specifically FeS encapsulated within a hierarchically ordered mesoporous carbon prepared via nanocasting using a SBA-15 template with stable cycle life. We evaluated the Na-ion storage properties and found that the parallel 2D mesoporous channels in the resultant FeS/carbon composite enhanced the conductivity, buffered the volume changes, and prevented unwanted side reactions. Further, high-rate Na-ion storage (363.4 mAh g−1 after 500 cycles at 2 A g−1, 132.5 mAh g−1 at 20 A g−1) was achieved, better than that of the bare FeS electrode, indicating the benefit of structural confinement for rapid ion transfer, and demonstrating the excellent electrochemical performance of this anode material at high rates.

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