Dynamics of proton intercalation into Al3+-doped vanadium oxide in an aqueous magnesium-containing electrolyte

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Dynamics of proton intercalation into Al3+-doped vanadium oxide in an aqueous magnesium-containing electrolyte. / Salnikova, Y.D.; Kamenskii, M.A.; Tolstopyatova, E.G.; Kondratiev, V.V.

In: Materials Letters, Vol. 373, 01.10.2024.

Research output: Contribution to journal › Article › peer-review

BibTeX

@article{9be139c04fb640049523e23765ae4f37,

title = "Dynamics of proton intercalation into Al3+-doped vanadium oxide in an aqueous magnesium-containing electrolyte",

abstract = "Al3+-doped vanadium oxide (AlxV2O5) with x = 0.072 was synthesized by hydrothermal method. The presence of Al3+ ions in the layered structure of AlxV2O5 agglomerated in the form of “nanoflowers” was confirmed. The mechanism of electrochemical intercalation processes in AlxV2O5 cathodes in Mg2+-containing aqueous electrolyte was studied. The dynamics of the near-electrode electrolyte pH during charge–discharge processes was investigated by in situ pH measurements. The cyclic evolution of the electrolyte pH during the charge–discharge process suggests the direct involvement of hydrogen ions in the intercalation processes along with Mg2+-intercalation. {\textcopyright} 2024 Elsevier B.V.",

keywords = "AlxV2O5 cathode, Aqueous electrolyte, Electrochemical intercalation, Proton and magnesium intercalation, Aluminum compounds, Electric discharges, Electrolytes, Magnesium, Oxides, Vanadium compounds, Charge-discharge process, Electrochemical intercalations, Hydrothermal methods, Intercalation process, Layered Structures, Magnesium intercalations, Proton intercalations, Synthesised, Cathodes",

author = "Y.D. Salnikova and M.A. Kamenskii and E.G. Tolstopyatova and V.V. Kondratiev",

note = "Export Date: 19 October 2024 CODEN: MLETD Адрес для корреспонденции: Kondratiev, V.V.; Institute of Chemistry, Universitetskaya nab. 7-9, Russian Federation; эл. почта: vkondratiev@mail.ru Сведения о финансировании: Saint Petersburg State University, SPbU Сведения о финансировании: Russian Science Foundation, RSF, 24-23-00224 Сведения о финансировании: Russian Science Foundation, RSF Текст о финансировании 1: This work was supported by the Russian Science Foundation (grant \u2116 24-23-00224 ). The authors thank the Centre for X-ray Diffraction Methods, Chemical Analysis and Materials Research Centre, the Centre for Physical Methods of Surface Investigation and the Interdisciplinary Center for Nanotechnology of the Research Park of Saint Petersburg State University .",

year = "2024",

month = oct,

day = "1",

doi = "10.1016/j.matlet.2024.137113",

language = "Английский",

volume = "373",

journal = "Materials Letters",

issn = "0167-577X",

publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Dynamics of proton intercalation into Al3+-doped vanadium oxide in an aqueous magnesium-containing electrolyte

AU - Salnikova, Y.D.

AU - Kamenskii, M.A.

AU - Tolstopyatova, E.G.

AU - Kondratiev, V.V.

N1 - Export Date: 19 October 2024 CODEN: MLETD Адрес для корреспонденции: Kondratiev, V.V.; Institute of Chemistry, Universitetskaya nab. 7-9, Russian Federation; эл. почта: vkondratiev@mail.ru Сведения о финансировании: Saint Petersburg State University, SPbU Сведения о финансировании: Russian Science Foundation, RSF, 24-23-00224 Сведения о финансировании: Russian Science Foundation, RSF Текст о финансировании 1: This work was supported by the Russian Science Foundation (grant \u2116 24-23-00224 ). The authors thank the Centre for X-ray Diffraction Methods, Chemical Analysis and Materials Research Centre, the Centre for Physical Methods of Surface Investigation and the Interdisciplinary Center for Nanotechnology of the Research Park of Saint Petersburg State University .

PY - 2024/10/1

Y1 - 2024/10/1

N2 - Al3+-doped vanadium oxide (AlxV2O5) with x = 0.072 was synthesized by hydrothermal method. The presence of Al3+ ions in the layered structure of AlxV2O5 agglomerated in the form of “nanoflowers” was confirmed. The mechanism of electrochemical intercalation processes in AlxV2O5 cathodes in Mg2+-containing aqueous electrolyte was studied. The dynamics of the near-electrode electrolyte pH during charge–discharge processes was investigated by in situ pH measurements. The cyclic evolution of the electrolyte pH during the charge–discharge process suggests the direct involvement of hydrogen ions in the intercalation processes along with Mg2+-intercalation. © 2024 Elsevier B.V.

AB - Al3+-doped vanadium oxide (AlxV2O5) with x = 0.072 was synthesized by hydrothermal method. The presence of Al3+ ions in the layered structure of AlxV2O5 agglomerated in the form of “nanoflowers” was confirmed. The mechanism of electrochemical intercalation processes in AlxV2O5 cathodes in Mg2+-containing aqueous electrolyte was studied. The dynamics of the near-electrode electrolyte pH during charge–discharge processes was investigated by in situ pH measurements. The cyclic evolution of the electrolyte pH during the charge–discharge process suggests the direct involvement of hydrogen ions in the intercalation processes along with Mg2+-intercalation. © 2024 Elsevier B.V.

KW - AlxV2O5 cathode

KW - Aqueous electrolyte

KW - Electrochemical intercalation

KW - Proton and magnesium intercalation

KW - Aluminum compounds

KW - Electric discharges

KW - Electrolytes

KW - Magnesium

KW - Oxides

KW - Vanadium compounds

KW - Charge-discharge process

KW - Electrochemical intercalations

KW - Hydrothermal methods

KW - Intercalation process

KW - Layered Structures

KW - Magnesium intercalations

KW - Proton intercalations

KW - Synthesised

KW - Cathodes

UR - https://www.mendeley.com/catalogue/c8225042-5182-3966-8a75-0f7854fea5f8/

U2 - 10.1016/j.matlet.2024.137113

DO - 10.1016/j.matlet.2024.137113

M3 - статья

VL - 373

JO - Materials Letters

JF - Materials Letters

SN - 0167-577X

ER -

ID: 126354584