Issue 5, 2024

Electrochemical energy storage in an organic supercapacitor via a non-electrochemical proton charge assembly

Abstract

Contrary to conventional beliefs, we show how a functional ligand that does not exhibit any redox activity elevates the charge storage capability of an electric double layer via a proton charge assembly. Compared to an unsubstituted ligand, a non-redox active carboxy ligand demonstrated nearly a 4-fold increase in charge storage, impressive capacitive retention even at a rate of 900C, and approximately a 2-fold decrease in leakage currents with an enhancement in energy density up to approximately 70% via a non-electrochemical route of proton charge assembly. Generalizability of these findings is presented with various non-redox active functional units that can undergo proton charge assembly in the ligand. This demonstration of non-redox active functional units enriching supercapacitive charge storage via proton charge assembly contributes to the rational design of ligands for energy storage applications.

Graphical abstract: Electrochemical energy storage in an organic supercapacitor via a non-electrochemical proton charge assembly

Supplementary files

Article information

Article type
Edge Article
Submitted
21 Oct 2023
Accepted
18 Dec 2023
First published
19 Dec 2023
This article is Open Access

All publication charges for this article have been paid for by the Royal Society of Chemistry
Creative Commons BY-NC license

Chem. Sci., 2024,15, 1726-1735

Electrochemical energy storage in an organic supercapacitor via a non-electrochemical proton charge assembly

S. Mukhopadhyay, A. R. Kottaichamy, M. C. Devendrachari, R. M. Mendhe, H. M. Nimbegondi Kotresh, C. P. Vinod and M. Ottakam Thotiyl, Chem. Sci., 2024, 15, 1726 DOI: 10.1039/D3SC05639B

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