scholarly journals High Performance Symmetric Supercapacitor Based on Sunflower Marrow Carbon Electrode Material

Author(s):  
KanjunSun KanjunSun ◽  

2020 ◽  
Vol 338 ◽  
pp. 135815 ◽  
Author(s):  
Shib Shankar Singha ◽  
Siddheswar Rudra ◽  
Suchanda Mondal ◽  
Mukul Pradhan ◽  
Arpan Kumar Nayak ◽  
...  


Author(s):  
Shiying Lin ◽  
Lanlan Mo ◽  
Tao Lyu ◽  
Feijun Wang

Abstract Heteroatom doping is an effective modification to improve electrochemical performance of carbon materials as electrodes in storage devices and multi-doping works better because of synergistic effect. In this report, a N/O/S multi-doped carbon nanospheres (SLS/PANI-700) are prepared from crosslinking hydrogel beads of polyaniline and sodium lignosulfonate. The addition of sodium lignosulfonate significantly improve the electrochemical performance of PANI-based carbon by changing micromorphology, building interconnected network and offering diverse doping. SLS/PANI-700 has ultrahigh specific surface area of 2861 m2 g−1, well-developed hierarchically porous structure, interconnected conducting carbon network and high N and O concentration. Take these advantages, it delivers very high capacitance of 487.7 F g−1 at 1 A g−1, a superior rate retention with capacitance of 373.6 F g−1 at a high current density of 20 A g−1 as electrode material. The assembled symmetric supercapacitor device exhibits a very high energy density of 43.68 Wh kg−1 at 488.98 W kg−1 and keeps 21.18 Wh kg−1 under a high power density of 8664.54 W kg−1. Based on these properties, SLS/PANI-700 possesses a great promising potential as electrode material for advanced supercapacitor.





2018 ◽  
Vol 30 (1) ◽  
pp. 914-925 ◽  
Author(s):  
Feiqiang Guo ◽  
Xiaochen Jiang ◽  
Xiaolei Li ◽  
Kuangye Peng ◽  
Chenglong Guo ◽  
...  


2019 ◽  
Vol 784 ◽  
pp. 847-858 ◽  
Author(s):  
Wei Hau Low ◽  
Poi Sim Khiew ◽  
Siew Shee Lim ◽  
Chiu Wee Siong ◽  
Chin Hua Chia ◽  
...  


2017 ◽  
Vol 53 (7) ◽  
pp. 5194-5203 ◽  
Author(s):  
Haoyuan Li ◽  
Guoxin Zhang ◽  
Rongrong Zhang ◽  
Huaxing Luo ◽  
Lin Wang ◽  
...  




RSC Advances ◽  
2015 ◽  
Vol 5 (103) ◽  
pp. 84840-84848 ◽  
Author(s):  
Sayed Habib Kazemi ◽  
Babak Karimi ◽  
Armin Fashi ◽  
Hesam Behzadnia ◽  
Hojatollah Vali

This article is the first example of the incorporation of metal oxide nanoparticles within ionic liquid derived nano-fibrillated mesoporous carbon (IFMC), as electrode materials for supercapacitor applications.



2021 ◽  
Vol 2049 (1) ◽  
pp. 012008
Author(s):  
Erman Taer ◽  
Muhammad Ali Akbar Tsalis ◽  
Apriwandi ◽  
Novi Yanti ◽  
Awitdrus ◽  
...  

Abstract Green, sustainable and effective development technique to obtain high porous activated carbon biomass based is important to boosting supercapacitor performance with environmentally friendly effect as conversion system and energy storage devices. We reported porous activated carbon binder-free Scleria sumatrensis stem-based as electrode material high performance of symmetric supercapacitor. Precursor biomass of Scleria sumatrensis stem was converted into porous carbon through simple ZnCl2 impregnated with different concentration of 0.4M, 0.5M, 0.6M, and 0.7M at high-temperature phyrolysis. All samples confirmed good amorphous carbon with small amounts of oxidative compounds. In two-electrode system, the optimum sample of ACSS0.6 significantly boosting the specific capacitance as high as 142.62 F g−1 at scan rate of 1 mV s−1. Furthermore, the optimum energy density was found to be 19.80 Wh kg−1 at a maximum power density of 71.35 W kg−1 in 1 M H2SO4 aqueous electrolyte. These results confirm that the porous activated carbon binder-free Scleria sumatrensis stem-based through simple ZnCl2 impregnated as an electrode material to boosting the electrochemical behavior of supercapacitors.



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