Work

On the Reversibility of Sustainable Symmetric Aqueous Organic Redox Flow Batteries

Year: 2024

Type: article

Abstract: Herein, the effect of electrode anodization on the enhancement of the reversibility and the electrochemical activity of the redox‐active molecule alizarin in both positive and negative electrodes is reported. Alizarin is a bifunctional plant‐based anthraquinone redox species that exhibits irreversibility at positive potential (versus Ag/AgCl). The results show that the anodization of carbon paper increases surface area and introduces functional groups, which in turn promotes reversibility at the positive potential. To demonstrate the applicability of our technique, the modified electrodes are used in a symmetric aqueous organic redox flow battery, showing a significant improvement in capacity retention and Coulombic efficiency compared to pristine carbon electrodes.

Source: Advanced Energy and Sustainability Research

DOI: 10.1002/aesr.202400324

Authors: Saeed Mardi, Ujwala Ail, Mikhail Vagin, Jaywant Phopase, Reverant Crispin

Institutions: Linköping University, Uppsala University, Wallenberg Wood Science Center

Language: English

Topic: Advanced battery technologies research

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

SDG: Affordable and clean energy

Open Access status: gold

Estimated APC paid: $3,400