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Title: Room Temperature Magnesium Electrodeposition from Glyme-Coordinated Ammonium Amide Electrolytes
Authors: Kitada, Atsushi  kyouindb  KAKEN_id  orcid https://orcid.org/0000-0002-4387-8687 (unconfirmed)
Kang, Yuu
Matsumoto, Kazuhiko  kyouindb  KAKEN_id  orcid https://orcid.org/0000-0002-0770-9210 (unconfirmed)
Fukami, Kazuhiro  kyouindb  KAKEN_id  orcid https://orcid.org/0000-0001-9120-5578 (unconfirmed)
Hagiwara, Rika  kyouindb  KAKEN_id  orcid https://orcid.org/0000-0002-7234-3980 (unconfirmed)
Murase, Kuniaki  kyouindb  KAKEN_id  orcid https://orcid.org/0000-0002-7564-9416 (unconfirmed)
Author's alias: 邑瀬, 邦明
Keywords: coordination
electrodeposition
glyme
ionic liquid
magnesium
raman
room temperature
single crystal
Issue Date: 2-May-2015
Publisher: Electrochemical Society
Journal title: Journal of the Electrochemical Society
Volume: 162
Issue: 8
Start page: D389
End page: D396
Abstract: We prepared less volatile and halide-free electrolytes for room temperature non-dendritic magnesium (Mg) electrodeposition by mixing a Mg[2+]-amide-containing ionic liquid (IL) with equimolar glyme (Mg[2+]+IL : glyme = 1:1). Raman spectroscopy suggested that in the equimolar mixture most glyme molecules are coordinated to Mg[2+] cations and/or IL cations, which is also supported by a single crystal X-ray diffraction study. The glyme-coordinated IL electrolytes showed sizable redox currents (order of mA cm–2), while aging deterioration of electrochemical properties was observed for the triglyme mixture due to partial bath decomposition. The tetraglyme-coordinated IL electrolyte enabled flat electrodeposition of Mg with a metallic luster and showed with very high anodic stability (ca. +4 V vs. Mg) because of decrease in uncoordinated glymes, which can be used for high-voltage Mg ion batteries.
Rights: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 License (CC BY, http://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse of the work in any medium, provided the original work is properly cited.
URI: http://hdl.handle.net/2433/201844
DOI(Published Version): 10.1149/2.0731508jes
Appears in Collections:Journal Articles

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