Improved Electrochemical Performance of Fe 3 O 4 Nanoparticles Decorated Activated Carbon Supercapacitor Electrodes

2020 ◽  
Vol 41 (8) ◽  
pp. 856-863 ◽  
Author(s):  
Seungil Park ◽  
Chellan Justin Raj ◽  
Ramu Manikandan ◽  
Byung Chul Kim ◽  
Kook Hyun Yu
Keyword(s):  
Activated Carbon ◽  
Electrochemical Performance

Influence of KOH followed by oxidation pretreatment on the electrochemical performance of phenolic based activated carbon fibers

2007 ◽  
Vol 611 (1-2) ◽  
pp. 225-231 ◽  
Author(s):  
Chun-Ling Liu ◽  
Wen-Sheng Dong ◽  
Gao-Ping Cao ◽  
Jing-Ren Song ◽  
Lang Liu ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Electrochemical Performance ◽  
Carbon Fibers ◽  
Activated Carbon Fibers

Preparation and electrochemical performance of the N-doped hollow pitch-based activated carbon fibers as supercapacitor electrodes

Carbon ◽  
2020 ◽  
Vol 167 ◽  
pp. 931
Author(s):  
Dan Yue ◽  
Jiang-xiao Yang ◽  
Bing Sun ◽  
Kui Shi ◽  
Hui Zhu ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Electrochemical Performance ◽  
Carbon Fibers ◽  
Activated Carbon Fibers

Electrochemical Performance of Lithium-Ion Hybrid Supercapacitors based on Activated Carbon and Nanoplatelet Li4Ti5O12 Insertion Electrode Synthesized by Nanoscission Technique

2015 ◽  
Vol 1740 ◽  
Author(s):  
Sandeep Singh ◽  
Alok C Rastogi ◽  
Fredrick Omenya ◽  
M Stanley Whittingham ◽  
Archit Lal ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Electrochemical Performance ◽  
Lithium Ion ◽  
Charge Transfer Resistance ◽  
Electrode Polarization ◽  
Hybrid Supercapacitor ◽  
Transfer Resistance ◽  
Hybrid Supercapacitors ◽  
Current Change ◽  
Kinetic Effects

ABSTRACTElectrochemical performance of hybrid supercapacitor (HSC) utilizing surface sculpted Li4Ti5O12 (LTO) insertion electrode having nanoplatelet-like morphology and activated carbon (AC) electrode is investigated for energy storage application. Cyclic voltammetry (CV) at variable scan rates 0.5 to 60 mV.s-1 in the 0-3.2 V range show pseusocapacitive behavior and fast rate of current change indicating rapid Faradaic kinetics. Nyquist impedance study show charge transfer resistance due to kinetic effects of electron transfer and Li+ de-intercalation process at the LTO anode. Low capacity (0.2 C-1C) charge-discharge (CD) curves show high Coulomb efficiency with marginal reduction at high 5-10 C rates due to irreversibility of adsorbed PF6 anions at the electrolyte-AC interface. Galvanostatic CD cycling tests over 50 cycles at different C-rates show decline in storage capacity due to electrode polarization effects. Reduction, broadening and shift of the Raman line at 678 cm-1 from Ti-O bonds in TiO6 octahedra after cycling indicates Li insertion reactions in functioning of hybrid supercapacitor. The hybrid supercapacitor cells have shown energy density, 29 Wh.kg-1 and power density, 350 W.kg-1.

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