CrMIL-53 as a matrix for proton-conducting nanocomposites based on CsH5(PO4)2

Valentina Ponomareva, Konstantin Kovalenko, Irina Bagryantseva, Elena Shutova, Vladimir Fedin

Результат исследования: Научные публикации в периодических изданияхстатьярецензирование

Аннотация

The approach of the introduction of proton-conducting material into the pores of metal-organic frameworks was developed. Cr-MIL-53 with one-dimensional pores was used as effective matrix. Proton conductivity and structural properties of (1-x)CsH5(PO4)2–xCr-MIL-53 (x = 0.11–0.62) were investigated firstly. A significant increase of conductivity was shown due to the interface interaction of OH groups of Cr-MIL-53 and protons of CsH5(PO4)2. The CsH5(PO4)2 remains in composites with significant changes of structural properties due to dispersion and amorphization. The proton conductivity increases by 2–3 orders of magnitude and passes through maximum at x ∼ 0.3–0.5 reaching 6·10−3 S/cm at 130 °C. The developed approach affords solid materials with potent proton-conducting properties at moderate temperatures for electrochemical devices.

Язык оригиналаанглийский
Номер статьи132181
ЖурналMaterials Letters
Том318
DOI
СостояниеОпубликовано - 1 июл 2022

Предметные области OECD FOS+WOS

  • 2.05 ТЕХНОЛОГИЯ МАТЕРИАЛОВ
  • 1.03 ФИЗИЧЕСКИЕ НАУКИ И АСТРОНОМИЯ
  • 2.03 МЕХАНИКА И МАШИНОСТРОЕНИЕ

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