Cobalt-based compounds and composites as electrode materials for high-performance electrochemical capacitors

2014 ◽  
Vol 2 (41) ◽  
pp. 17212-17248 ◽  
Author(s):  
Kian Keat Lee ◽  
Wee Shong Chin ◽  
Chorng Haur Sow
Keyword(s):  
High Performance ◽  
Recent Progress ◽  
Electrode Materials ◽  
Electrochemical Capacitors

Recent progress, achievements, challenges and outlook in the (re)search of high performance cobalt-based compounds and composites for electrochemical capacitors.

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.

Electrochemical Charge Storage Performance of Mesoporous MoO3@Co3O4 Nanocomposites as Electrode Materials

2021 ◽  
Author(s):  
Dillip Kumar Mohapatra ◽  
Swetapadma Praharaj ◽  
Dibyaranjan Rout
Keyword(s):  
Redox Reactions ◽  
High Performance ◽  
Electrode Materials ◽  
Coulombic Efficiency ◽  
Average Pore Size ◽  
Electrochemical Capacitors ◽  
Bet Surface Area ◽  
Average Pore ◽  
Storage Performance ◽  
Reversible Redox

Abstract Constructing a novel nanocomposite structure based on Co3O4 is of the current interest to design and develop efficient electrochemical capacitors. The capacitive performance of MoO3@Co3O4 nanocomposite is compared with pristine Co3O4 nanoparticles, both of them being synthesized by hydrothermal technique. A BET surface area of ~41 m2g-1 (almost twice that of Co3O4 )and average pore size of 3.6 nm is found to be suitable for promoting Faradaic reactions in the nanocomposite. Electrochemical measurements conducted on both samples predict capacitive behavior with quasi-reversible redox reactions. MoO3@Co3O4 nanocomposite is capable of delivering a superior specific capacitance of 1248 Fg-1 at 0.5 Ag-1 along with notable stability of 92% even after 2000 cycles of charge-discharge and Coulombic efficiency approaching 100% at 10 Ag-1. The outstanding results obtained in this work assure functional adequacy of MoO3@Co3O4 nanocomposite in fabricating high-performance electrochemical capacitors.

scholarly journals Recent Progress on Spray Pyrolysis for High Performance Electrode Materials in Lithium and Sodium Rechargeable Batteries

2016 ◽  
Vol 7 (7) ◽  
pp. 1601578 ◽  
Author(s):  
Yujie Zhu ◽  
Seung Ho Choi ◽  
Xiulin Fan ◽  
Jaeho Shin ◽  
Zhaohui Ma ◽  
...  
Keyword(s):  
Spray Pyrolysis ◽  
High Performance ◽  
Recent Progress ◽  
Electrode Materials ◽  
Rechargeable Batteries

Recent Progress in Flexible Electrochemical Capacitors: Electrode Materials, Device Configuration, and Functions

2015 ◽  
Vol 5 (22) ◽  
pp. 1500959 ◽  
Author(s):  
Byung Chul Kim ◽  
Jin-Yong Hong ◽  
Gordon G. Wallace ◽  
Ho Seok Park
Keyword(s):  
Recent Progress ◽  
Electrode Materials ◽  
Electrochemical Capacitors

Noble metal-based materials in high-performance supercapacitors

2017 ◽  
Vol 4 (1) ◽  
pp. 33-51 ◽  
Author(s):  
Yan Yan ◽  
Tianyi Wang ◽  
Xinran Li ◽  
Huan Pang ◽  
Huaiguo Xue
Keyword(s):  
Noble Metal ◽  
High Performance ◽  
Noble Metals ◽  
Recent Progress ◽  
Composite Electrode ◽  
Electrode Materials

This review comprehensively summarizes and evaluates the recent progress in the research of noble metals and their composite electrode materials for supercapacitors.

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