Charge Storage Behaviour of α-MoO3 in Aqueous Electrolytes – Effect of Charge Density of Electrolyte Cations
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Duignan, TT
Hussain, T
Knibbe, R
Zhao, XS
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Abstract
In this paper, we show that the electrochemical performance of α-MoO3 electrode is significantly dependent on the charge density of three studied aqueous electrolyte cations, i. e. Na+, Mg2+ and Al3+. The charge storage capacity of the α-MoO3 electrode increases with increasing cation charge density. On the other hand, the initial coulombic efficiency decreases, and the charge transport kinetics are slowed with increasing charge density. This study provides an insightful understanding of the relationship between the charge density of metal ions and their electrochemical behaviour towards α-MoO3 electrode in aqueous solutions. It also highlights the importance of the appropriate selection of aqueous electrolytes for enhancing electrochemical performance.
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ChemElectroChem
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9
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3
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© 2022 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. This is the peer reviewed version of the following article: Charge Storage Behaviour of α-MoO3 in Aqueous Electrolytes – Effect of Charge Density of Electrolyte Cations, ChemElectroChem, 9 (3), pp. e202101449, 2022, which has been published in final form at https://doi.org/10.1002/celc.202101449. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. This article may not be enhanced, enriched or otherwise transformed into a derivative work, without express permission from Wiley or by statutory rights under applicable legislation. Copyright notices must not be removed, obscured or modified. The article must be linked to Wiley’s version of record on Wiley Online Library and any embedding, framing or otherwise making available the article or pages thereof by third parties from platforms, services and websites other than Wiley Online Library must be prohibited.
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Electrochemical energy storage and conversion
Theory and design of materials
Macromolecular and materials chemistry
Organic chemistry
Physical chemistry
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Elkholy, AE; Duignan, TT; Hussain, T; Knibbe, R; Zhao, XS, Charge Storage Behaviour of α-MoO3 in Aqueous Electrolytes – Effect of Charge Density of Electrolyte Cations, ChemElectroChem, 2022, 9 (3), pp. e202101449