Dual coexisting interconnected graphene nanostructures for high performance supercapacitor applications

2016 ◽  
Vol 9 (7) ◽  
pp. 2249-2256 ◽  
Author(s):  
Hyun-Kyung Kim ◽  
Ali Reza Kamali ◽  
Kwang Chul Roh ◽  
Kwang-Bum Kim ◽  
Derek John Fray

A high-quality hierarchical carbon nanostructure consisting of graphene nanosheets and nanoscrolls can be synthesized by a facile and scalable molten salt method. This carbon nanostructure is here proposed as a high-performance supercapacitor electrode material.

Materials ◽  
2019 ◽  
Vol 12 (12) ◽  
pp. 1986 ◽  
Author(s):  
Tao Ai ◽  
Zhe Wang ◽  
Haoran Zhang ◽  
Fenghua Hong ◽  
Xin Yan ◽  
...  

Nitrogen hybridization is an attractive way to enhance the wettability and electric conductivity of porous carbon, which increases the capacitance of carbon-based supercapacitor, however, there is lack of low-cost methods to prepare the nitrogen-doped porous carbon materials. Herein, a novel facile nitrogen-containing bio-phenolic resin was synthesized by polymerization of the carbamate bio-oil, Phenol and paraformaldehyde. As a precursor of nitrogen-doped porous carbon, the nitrogen-containing bio-phenol resin was activated by the one-step molten-salt method. The resultant nitrogen-doped porous carbon showed a high specific surface area up to 1401 m2·g−1. As a supercapacitor electrode, the nitrogen-doped porous carbons showed specific capacitance of 159 F·g−1 at 0.5 A·g−1. It also exhibited high cyclic stability with 94.8% retention of the initial specific capacitance over 1000 charge-discharge cycles at 1.0 A·g−1. The results suggest that these nitrogen-containing bio-phenol resin provide a new source of nitrogen-doped porous carbon for high-performance supercapacitor electrodes.


2021 ◽  
Vol 9 (5) ◽  
pp. 2948-2958
Author(s):  
Bing Wang ◽  
Shuo Liu ◽  
Lin Liu ◽  
Wen-Wei Song ◽  
Yue Zhang ◽  
...  

The three-component PCN-224/PEDOT/PMo12 supercapacitor electrode material is designed to offer high area capacitance, good cycle stability and mechanical flexibility.


2021 ◽  
Author(s):  
Daniel M. Mijailovic ◽  
Vuk V. Radmilović ◽  
Uros C. Lacnjevac ◽  
Dusica B Stojanovic ◽  
Karen Bustillo ◽  
...  

We herein report a simple two–step procedure for fabricating tetragonal CoMn2O4 spinel nanocrystals on carbon fibers. The battery–type behavior of these composite fibers arises from the redox activity of CoMn2O4...


2021 ◽  
Author(s):  
Yaseen Muhammad ◽  
Ata ur Rahman ◽  
Hamsa Noreen ◽  
Zeeshan Nawaz ◽  
Javed Iqbal Saggu ◽  
...  

The preparation of a stable, efficient, inexpensive and high capacitance electrode material for supercapacitors is posing great challenges for the researchers. In this report, we demonstrate the synthesis of stable,...


RSC Advances ◽  
2014 ◽  
Vol 4 (66) ◽  
pp. 34739-34750 ◽  
Author(s):  
Alfin Kurniawan ◽  
L. K. Ong ◽  
Fredi Kurniawan ◽  
C. X. Lin ◽  
Felycia E. Soetaredjo ◽  
...  

For the first time, porous carbon microfibers co-doped with N/P/K were synthesized from cane molasses by combination of electrospinning and carbonization techniques and its electrochemical application to electrode materials for supercapacitors was investigated.


2022 ◽  
Vol 48 ◽  
pp. 103953
Author(s):  
Madan R. Biradar ◽  
Akshay V. Salkar ◽  
Pranay P. Morajkar ◽  
Sheshanath V. Bhosale ◽  
Sidhanath V. Bhosale

RSC Advances ◽  
2019 ◽  
Vol 9 (33) ◽  
pp. 19079-19085 ◽  
Author(s):  
Praeploy Chomkhuntod ◽  
Arreerat Jiamprasertboon ◽  
Anurak Waehayee ◽  
Teera Butburee ◽  
Narong Chanlek ◽  
...  

Hollow microflowers of Cs intercalated MnO2 binessite are prepared by a facile molten salt method and tested for supercapacitor electrodes.


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