Enhanced supercapacitor performance of a 3D architecture tailored using atomically thin rGO–MoS2 2D sheets

RSC Advances ◽  
2016 ◽  
Vol 6 (96) ◽  
pp. 93384-93393 ◽  
Author(s):  
Sujin P. Jose ◽  
Chandra Sekhar Tiwary ◽  
Suppanat Kosolwattana ◽  
Prasanth Raghavan ◽  
Leonardo D. Machado ◽  
...  
Keyword(s):  
Electrochemical Properties ◽  
Md Simulations ◽  
Supercapacitor Electrode ◽  
Conductive Additive ◽  
3D Architecture ◽  
Supercapacitor Performance ◽  
Superior Electrochemical Properties

A stable, conductive, additive-free and scalable 3D architecture supercapacitor electrode fabricated by atomically thin 2D sheets of GO and MoS2 shows superior electrochemical properties which are further substantiated using MD simulations.

Supercapacitor performance of perovskite La1−xSrxMnO3

2017 ◽  
Vol 46 (40) ◽  
pp. 13720-13730 ◽  
Author(s):  
Xueqin Lang ◽  
Haiyang Mo ◽  
Xiaoying Hu ◽  
Hongwei Tian
Keyword(s):  
Porous Structure ◽  
Electrochemical Properties ◽  
Perovskite Manganite ◽  
Supercapacitor Performance ◽  
Oxygen Intercalation ◽  
Superior Electrochemical Properties ◽  
Meso Scale

Sr-doped perovskite manganite La1−xSrxMnO3 materials, which are composed of nanoparticles, possess a meso-scale porous structure with superior electrochemical properties under the mechanism of oxygen intercalation.

Preparation of size-selective Mn3O4 hexagonal nanoplates with superior electrochemical properties for pseudocapacitors

2015 ◽  
Vol 17 (35) ◽  
pp. 23017-23025 ◽  
Author(s):  
Guiling Wang ◽  
Zhipeng Ma ◽  
Yuqian Fan ◽  
Guangjie Shao ◽  
Lingxue Kong ◽  
...  
Keyword(s):  
Electrochemical Properties ◽  
Cycling Stability ◽  
Supercapacitor Electrode ◽  
Capacity Retention ◽  
Excellent Cycling Stability ◽  
Superior Electrochemical Properties ◽  
Hexagonal Nanoplates

Regular Mn3O4 hexagonal nanoplates are synthesized for a supercapacitor electrode. This electrode exhibits excellent cycling stability with 100% capacity retention after 5000 cycles.

scholarly journals Ultra-fast synthesis of Ti/Ru0.3Ti0.7O2 anodes with superior electrochemical properties using an ionic liquid and laser calcination

2021 ◽  
pp. 129011
Author(s):  
Aline R. Dória ◽  
Isabelle M.D. Gonzaga ◽  
Géssica O.S. Santos ◽  
Marilia Pupo ◽  
Deyvid C. Silva ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Electrochemical Properties ◽  
Superior Electrochemical Properties ◽  
Fast Synthesis

scholarly journals In Situ Fabrication of Activated Carbon from a Bio-Waste Desmostachya bipinnata for the Improved Supercapacitor Performance

2021 ◽  
Vol 16 (1) ◽  
Author(s):  
Gopal Krishna Gupta ◽  
Pinky Sagar ◽  
Sumit Kumar Pandey ◽  
Monika Srivastava ◽  
A. K. Singh ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Energy Density ◽  
Power Density ◽  
Supercapacitor Electrode ◽  
In Situ Fabrication ◽  
Transmission Electron ◽  
Good Energy ◽  
Supercapacitor Performance ◽  
Operating Potential

AbstractHerein, we demonstrate the fabrication of highly capacitive activated carbon (AC) using a bio-waste Kusha grass (Desmostachya bipinnata), by employing a chemical process followed by activation through KOH. The as-synthesized few-layered activated carbon has been confirmed through X-ray powder diffraction, transmission electron microscopy, and Raman spectroscopy techniques. The chemical environment of the as-prepared sample has been accessed through FTIR and UV–visible spectroscopy. The surface area and porosity of the as-synthesized material have been accessed through the Brunauer–Emmett–Teller method. All the electrochemical measurements have been performed through cyclic voltammetry and galvanometric charging/discharging (GCD) method, but primarily, we focus on GCD due to the accuracy of the technique. Moreover, the as-synthesized AC material shows a maximum specific capacitance as 218 F g−1 in the potential window ranging from − 0.35 to + 0.45 V. Also, the AC exhibits an excellent energy density of ~ 19.3 Wh kg−1 and power density of ~ 277.92 W kg−1, respectively, in the same operating potential window. It has also shown very good capacitance retention capability even after 5000th cycles. The fabricated supercapacitor shows a good energy density and power density, respectively, and good retention in capacitance at remarkably higher charging/discharging rates with excellent cycling stability. Henceforth, bio-waste Kusha grass-derived activated carbon (DP-AC) shows good promise and can be applied in supercapacitor applications due to its outstanding electrochemical properties. Herein, we envision that our results illustrate a simple and innovative approach to synthesize a bio-waste Kusha grass-derived activated carbon (DP-AC) as an emerging supercapacitor electrode material and widen its practical application in electrochemical energy storage fields.

New 3D Porous Silver Nanopolycluster as a Highly Effective Supercapacitor Electrode: Synthesis and Study of the Optical and Electrochemical Properties

2021 ◽  
Vol 60 (3) ◽  
pp. 1523-1532
Author(s):  
Qing-Shi Wu ◽  
Fahime Bigdeli ◽  
Farzaneh Rouhani ◽  
Xue-Mei Gao ◽  
Hamed Kaviani ◽  
...  
Keyword(s):  
Electrochemical Properties ◽  
Supercapacitor Electrode ◽  
Highly Effective ◽  
Porous Silver

Preparation and Electrochemical Properties of LaMnO3 Powder as a Supercapacitor Electrode Material

2017 ◽  
Vol 727 ◽  
pp. 698-704 ◽  
Author(s):  
Xian Wei Wang ◽  
Xiao Er Wang ◽  
Hui Chao Zhang ◽  
Qian Qian Zhu ◽  
Dong Li Zheng ◽  
...  
Keyword(s):  
Cyclic Voltammetry ◽  
Electrochemical Properties ◽  
Electrode Material ◽  
Raw Materials ◽  
Sol Gel ◽  
Galvanostatic Charge ◽  
Supercapacitor Electrode ◽  
Lanthanum Manganate ◽  
Pure Phase ◽  
Charge Discharge

The structural and electrochemical properties of lanthanum manganate (LaMnO3) powder prepared by the sol-gel method are researched in this article. The powder calcined at 600 °C showed amorphous, and the powder calcined at 700-800 °C showed the pure phase of the LaMnO3. The grains with the size of about 80-120 nm were agglomerating together. Cyclic voltammetry and galvanostatic charge-discharge were used to characterize the electrochemical properties in alkaline environment. The electrochemical properties calcined at 700 °C showed a specific capacitance of 73 F/g at the current density of 0.5 A/g. The raw materials for preparing the LaMnO3 powder are cheap, and the operation method is simple.

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