Novel activated carbons as electrode materials for electrochemical capacitors from a series of starch

2008 ◽  
Vol 179 (7-8) ◽  
pp. 269-273 ◽  
Author(s):  
Q LI ◽  
H WANG ◽  
Q DAI ◽  
J YANG ◽  
Y ZHONG
Keyword(s):  
Electrode Materials ◽  
Activated Carbons ◽  
Electrochemical Capacitors

Design and Synthesis of Highly Porous Activated Carbons from Sargassum as Advanced Electrode Materials for Supercapacitors

2019 ◽  
Vol 166 (14) ◽  
pp. A3109-A3118 ◽  
Author(s):  
Feiqiang Guo ◽  
Xiaopeng Jia ◽  
Shuang Liang ◽  
Xiaochen Jiang ◽  
Kuangye Peng ◽  
...  
Keyword(s):  
Electrode Materials ◽  
Activated Carbons ◽  
Design And Synthesis ◽  
Highly Porous

Biomass-derived interconnected carbon nanoring electrochemical capacitors with high performance in both strongly acidic and alkaline electrolytes

2017 ◽  
Vol 5 (1) ◽  
pp. 181-188 ◽  
Author(s):  
Xianjun Wei ◽  
Yongbin Li ◽  
Shuyan Gao
Keyword(s):  
High Performance ◽  
Electrode Materials ◽  
Electrochemical Capacitors ◽  
High Rate ◽  
Alkaline Electrolytes

The match between sustainable electrode materials and electrolytes is the key to achieve high-rate electrochemical capacitors.

scholarly journals Highly Porous Graphitic Activated Carbons from Lignite via Microwave Pretreatment and Iron-Catalyzed Graphitization at Low-Temperature for Supercapacitor Electrode Materials

Processes ◽  
2019 ◽  
Vol 7 (5) ◽  
pp. 300 ◽  
Author(s):  
Dongdong Liu ◽  
Xiaoman Zhao ◽  
Rui Su ◽  
Zhengkai Hao ◽  
Boyin Jia ◽  
...  
Keyword(s):  
Low Temperature ◽  
Electrode Materials ◽  
Activated Carbons ◽  
Chemical Activation ◽  
Scale Up ◽  
Physical Activation ◽  
Supercapacitor Electrode ◽  
Microwave Pretreatment ◽  
Wide Range ◽  
Highly Porous

At present, the preparation of highly porous graphitic activated carbons (HPGACs) using the usual physical and chemical activation methods has met a bottleneck. In this study, HPGACs are directly synthesized from lignite at 900 °C. The whole process is completed by a microwave pretreatment, a graphitization conversion of the carbon framework at a low temperature using a small amount of FeCl3 (10–30 wt%), and a subsequent physical activation using CO2. Consequently, the dispersed and mobile iron species, in the absence of oxygen functional groups (removed during the microwave pretreatment), can greatly promote catalytic graphitization during pyrolysis, and, as an activating catalyst, can further facilitate the porosity development during activation. The as-obtained AC-2FeHLH-5-41.4(H) presents a low defect density, high purity, and specific surface area of 1852.43 m2 g−1, which is far greater than the AC-HLH-5-55.6(H) obtained solely by physical activation. AC-2FeHLH-5-41.4(H) as a supercapacitor electrode presents an excellent performance in the further electrochemical measurements. Such a convenient and practical method with low cost proves a scalable method to prepare HPGACs from a wide range of coal/biomass materials for industrial scale-up and applications.

Application of Activated Carbons Derived from Scrap Tires as Electrode Materials for Supercapacitors

2015 ◽  
Vol 4 (7) ◽  
pp. M35-M40 ◽  
Author(s):  
Pingping Zhao ◽  
Yan Han ◽  
Xiaoting Dong ◽  
Cui Zhang ◽  
Shuangxi Liu
Keyword(s):  
Electrode Materials ◽  
Activated Carbons ◽  
Scrap Tires

Graphene sheets anchored with ZnO nanocrystals as electrode materials for electrochemical capacitors

2014 ◽  
Vol 143 (2) ◽  
pp. 853-859 ◽  
Author(s):  
Chien-Te Hsieh ◽  
Jiun-Sheng Lin ◽  
Yu-Fu Chen ◽  
Chi-Yuan Lin ◽  
Wen-Yen Li
Keyword(s):  
Electrode Materials ◽  
Electrochemical Capacitors ◽  
Graphene Sheets ◽  
Zno Nanocrystals

scholarly journals Energy storage applications of activated carbons: supercapacitors and hydrogen storage

2014 ◽  
Vol 7 (4) ◽  
pp. 1250-1280 ◽  
Author(s):  
Marta Sevilla ◽  
Robert Mokaya
Keyword(s):  
Energy Storage ◽  
Hydrogen Storage ◽  
Electrode Materials ◽  
Activated Carbons ◽  
State Of The Art ◽  
The State ◽  
Hydrogen Storage Materials ◽  
Storage Materials ◽  
Energy Storage Applications

This review presents the state-of-the-art with respect to synthesis of activated carbons, and their use as electrode materials in supercapacitors and as hydrogen storage materials.

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