scholarly journals Facile and secure synthesis of porous partially fluorinated graphene employing weakly coordinating anion for enhanced high-performance symmetric supercapacitor

2021 ◽  
Author(s):  
Ning Cao ◽  
Teng Wang ◽  
Rabah Boukherroub ◽  
Yinghui Cai ◽  
Yijiang Qin ◽  
...  
Keyword(s):  
High Performance ◽  
Symmetric Supercapacitor ◽  
Fluorinated Graphene ◽  
Weakly Coordinating ◽  
Weakly Coordinating Anion

Functionalization and Tip-open of Carbon Nanotubes for High-Performance Symmetric Supercapacitor

2021 ◽  
Author(s):  
Yaxiong Zhang ◽  
Erqing Xie
Keyword(s):  
Mechanical Properties ◽  
Carbon Nanotubes ◽  
Aspect Ratio ◽  
Specific Surface ◽  
Surface Area ◽  
Chemical Stability ◽  
High Aspect Ratio ◽  
High Performance ◽  
Large Specific Surface Area ◽  
Symmetric Supercapacitor

Carbon nanotubes (CNTs) have been widely studied as supercapacitor electrodes because of their excellent conductivity, high aspect ratio, excellent mechanical properties, chemical stability, and large specific surface area. However, the...

The preparations of nanoporous carbon with multi-heteroatoms co-doping from black liquor powders for supercapacitors

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Pengfei Hao ◽  
Yanjie Yi ◽  
Youming Li ◽  
Yi Hou
Keyword(s):  
High Performance ◽  
Electrode Materials ◽  
Black Liquor ◽  
Nanoporous Carbon ◽  
Electrode System ◽  
Industrial Wastes ◽  
Co Doping ◽  
Paper Making ◽  
Symmetric Supercapacitor

Abstract A green and economically viable route without any additional activation agents and templates has been developed to synthesize biomass-derived nanoporous carbon for superior electric double-layer capacitors via direct pyrolysis of dried black liquor powders, which is the main waste in pulping and paper-making industry. The resulting carbon materials present hierarchical porosity and moderate specific surface area of 1134  m 2 g − 1 {\text{m}^{2}}\hspace{0.1667em}{\text{g}^{-1}} , as well as multi-heteroatoms co-doping such as N, S, Na and K, which exist originally in black liquor. When evaluated as electrode materials for supercapacitors in 6 M KOH aqueous electrolyte, the-prepared carbon samples deliver a significantly high gravimetric capacitance of 331  F g − 1 \text{F}\hspace{0.1667em}{\text{g}^{-1}} at 0.5  A g − 1 \text{A}\hspace{0.1667em}{\text{g}^{-1}} in a three-electrode system. Moreover, the fabricated symmetric supercapacitor also possesses a gravimetric capacitance of 211  F g − 1 \text{F}\hspace{0.1667em}{\text{g}^{-1}} at 0.5  A g − 1 \text{A}\hspace{0.1667em}{\text{g}^{-1}} , with an impressive long-term cycling stability of 92 % capacitance retention after 3000 cycles. This work explores a suitable and scalable approach for mass production of high-performance electrode materials with industrial wastes on the base of cost-efficiency and environment-friendship.

Mono(arene) Complexes of Thallium(I) Supported by a Weakly Coordinating Anion

2007 ◽  
Vol 26 (7) ◽  
pp. 1811-1815 ◽  
Author(s):  
Yann Sarazin ◽  
Nikolas Kaltsoyannis ◽  
Joseph A. Wright ◽  
Manfred Bochmann
Keyword(s):  
Arene Complexes ◽  
Weakly Coordinating ◽  
Weakly Coordinating Anion

High performance fiber-shaped all-solid-state symmetric supercapacitor based on mesoporous CuCo2S4 nanosheets

2018 ◽  
Vol 30 (1) ◽  
pp. 667-676 ◽  
Author(s):  
Jiqiu Qi ◽  
Xiaofeng Liu ◽  
Yanwei Sui ◽  
Yezeng He ◽  
Yaojian Ren ◽  
...  
Keyword(s):  
Solid State ◽  
High Performance ◽  
Symmetric Supercapacitor ◽  
High Performance Fiber

Mangano (III) vanadate as a synergistic component in high-performance symmetric supercapacitor

2021 ◽  
pp. 163239
Author(s):  
Sukanya Maity ◽  
Anjana Anandan Vannathan ◽  
Pranay R. Chandewar ◽  
Debaprasad Shee ◽  
Partha Pratim Das ◽  
...  
Keyword(s):  
High Performance ◽  
Symmetric Supercapacitor
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