ChemSusChem, volume 14, issue 6, pages 1574-1585

The Misconception of Mg2+ Insertion into Prussian Blue Analogue Structures from Aqueous Solution

Komayko Alena I 1, 2
Trussov Ivan A 1
Arkharova Natalya A 3
Presnov Denis E. 4, 5, 6
Levin Eduard E. 2, 3
Publication typeJournal Article
Publication date2021-02-10
Journal: ChemSusChem
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor8.4
ISSN18645631, 1864564X
General Chemical Engineering
General Materials Science
General Energy
Environmental Chemistry
Abstract
Prussian Blue analogs (PBA) are commonly believed to reversibly insert divalent ions, such as calcium and magnesium, rendering them as perspective cathode materials for aqueous magnesium-ion batteries. In this work, we show that Mg 2+ insertion into nanosized PBA materials is a misconception and provide conclusive evidence for the unfeasibility of this process for both cation-rich and cation-poor nickel, iron and copper hexacyanoferrates. Based on structural, electrochemical, IR spectroscopy and quartz crystal microbalance data, we deduce the charge compensation of PBA redox by protons rather than by divalent ions in aqueous Mg 2+ solution. The reversible insertion of protons involves complex lattice water rearrangements, while the presence of Mg 2+ ion and Mg salt anion stabilizes the proton (de)insertion reaction due to local pH effects and anion adsorption at the PBA surface. The obtained results draw attention to the design of proton-based batteries operating in environmentally benign aqueous solutions with low acidity.

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Komayko A. I. et al. The Misconception of Mg2+ Insertion into Prussian Blue Analogue Structures from Aqueous Solution // ChemSusChem. 2021. Vol. 14. No. 6. pp. 1574-1585.
GOST all authors (up to 50) Copy
Komayko A. I., Ryazantsev S. V., Trussov I. A., Arkharova N. A., Presnov D. E., Levin E. E., Nikitina V. A. The Misconception of Mg2+ Insertion into Prussian Blue Analogue Structures from Aqueous Solution // ChemSusChem. 2021. Vol. 14. No. 6. pp. 1574-1585.
RIS |
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RIS Copy
TY - JOUR
DO - 10.1002/cssc.202002916
UR - https://doi.org/10.1002%2Fcssc.202002916
TI - The Misconception of Mg2+ Insertion into Prussian Blue Analogue Structures from Aqueous Solution
T2 - ChemSusChem
AU - Komayko, Alena I
AU - Trussov, Ivan A
AU - Arkharova, Natalya A
AU - Ryazantsev, Sergey V
AU - Presnov, Denis E.
AU - Levin, Eduard E.
AU - Nikitina, Victoria A.
PY - 2021
DA - 2021/02/10 00:00:00
PB - Wiley
SP - 1574-1585
IS - 6
VL - 14
SN - 1864-5631
SN - 1864-564X
ER -
BibTex |
Cite this
BibTex Copy
@article{2021_Komayko,
author = {Alena I Komayko and Ivan A Trussov and Natalya A Arkharova and Sergey V Ryazantsev and Denis E. Presnov and Eduard E. Levin and Victoria A. Nikitina},
title = {The Misconception of Mg2+ Insertion into Prussian Blue Analogue Structures from Aqueous Solution},
journal = {ChemSusChem},
year = {2021},
volume = {14},
publisher = {Wiley},
month = {feb},
url = {https://doi.org/10.1002%2Fcssc.202002916},
number = {6},
pages = {1574--1585},
doi = {10.1002/cssc.202002916}
}
MLA
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MLA Copy
Komayko, Alena I., et al. “The Misconception of Mg2+ Insertion into Prussian Blue Analogue Structures from Aqueous Solution.” ChemSusChem, vol. 14, no. 6, Feb. 2021, pp. 1574-1585. https://doi.org/10.1002%2Fcssc.202002916.
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