Polyoxovanadate-Activated Carbon-Based Hybrid Materials for High-Performance Electrochemical Capacitors

Vannathan, Anjana Anandan and Chandewar, Pranay Rajendra and Shee, Debaprasad and Mal, Sib Sankar (2022) Polyoxovanadate-Activated Carbon-Based Hybrid Materials for High-Performance Electrochemical Capacitors. In: 1st International Conference on Technologies for Smart Green Connected Society 2021, ICTSGS 2021, 29 November 2021 through 30 November 2021, Virtual, Online.

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Abstract

Two different polyoxovanadates derivatives K5MnIVV11O33.10 H2O (MnV11) and K7MnIVV13O38.18 H2O (MnV13), have been studied to evluate their electrochemical performance. These polyoxovanadates were deposited on activated carbon (AC) to prepare AC-MnV11 and AC-MnV13 composites. The electrochemical performance of the AC- MnV11 electrode exhibits the remarkable specific capacitance of 479.73 F g-1 at a current density of 0.4 A g-1, along with incredible specific power and energy of 960 W kg-1. Likewise, the AC-MnV13 exhibits a specific capacitance of 357.33 F g-1 at the same current density of 0.4 A g-1 with a specific energy of 71.46 Wh kg-1. Interestingly, the AC- MnV11 could light up the red and yellow color LED bulbs for a duration of 80 and 60 seconds, respectively, indicating a considerable specific power of the material. The AC-MnV13 electrode shows significantly less lighting up the 65 and 30 seconds period with red and yellow LED bulbs. © The Electrochemical Society

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IITH Creators:

IITH Creators	ORCiD
Shee, Debaprasad	https://orcid.org/0000-0002-3503-8098

Item Type:

Conference or Workshop Item (Paper)

Additional Information:

This work is supported by the Council of Scientific and Industrial Research under scheme 01/(2906)/17/EMR-II. A. A. V. thanked the National Institute of Technology Karnataka, India, for financial assistance to carry out the research.

Uncontrolled Keywords:

different polyoxovanadates derivatives K5MnIVV11O33.10 H2O (MnV11) and K7MnIVV13O38.18 H2O (MnV13), AC-MnV11 and AC-MnV13 composites.

Subjects:

Chemistry
Chemical Engineering

Divisions:

Department of Chemical Engineering
Department of Chemistry

Depositing User:

. LibTrainee 2021

Date Deposited:

19 Jul 2022 07:26

Last Modified:

19 Jul 2022 07:26