Proton conducting hybrid compounds based on CsH5(PO4)2 metal-organic coordination frameworks

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Proton conducting hybrid compounds based on CsH₅(PO₄)₂ metal-organic coordination frameworks. / Ponomareva, Valentina G.; Kovalenko, Konstantin A.; Gus'kov, Rostislav D. et al.

In: Solid State Ionics, Vol. 343, 115084, 15.12.2019.

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

BibTeX

@article{2a8ec6bcc4474c1885be2cebff12e638,

title = "Proton conducting hybrid compounds based on CsH5(PO4)2 metal-organic coordination frameworks",

abstract = "The hybrid compounds based on CsH5(PO4)2 and metal-organic coordination framework, Cr-MIL-101 matrix, have been first synthesized. Proton conductivity, structural and thermal properties of (1-x)CsH5(PO4)2–xCr-MIL-101 nanocomposite electrolytes (x = 0.02–0.2) were investigated for the first time. The significant increase of proton conductivity has been shown due to the interface interaction of high dispersed mesoporous Cr-MIL-101 and CsH5(PO4)2. According to X-ray diffraction there is no chemical interaction between the components and no new compounds are formed. The data of X-ray diffraction, differential scanning calorimetry and electron microscopy show significant changes in structural and thermodynamic properties of CsH5(PO4)2 in nanocomposites due to dispersion and amorphization. As a result the proton conductivity of systems that increases by 1–3 orders of magnitude up to 10− 2 S/cm at 130 °C in the low humidity conditions, depends on the composition and goes through maximum at x~0.07–0.11. The conductivity of nanocomposites significantly exceeds the ones for the initial salt and the dispersed matrix. Such new approach affords the solid materials with potent proton conducting properties at moderate temperatures.",

keywords = "Cesium pentahydrogen diphosphate, Cr-MIL-101, High proton conductivity, Metal-organic coordination frameworks, Nanocomposites, PHASES, ELECTROLYTE, CSHSO4, FUEL-CELLS, BULK, COMPOSITE, TRANSPORT, TEMPERATURE, CRYSTALS, SURFACE",

author = "Ponomareva, {Valentina G.} and Kovalenko, {Konstantin A.} and Gus'kov, {Rostislav D.} and Bagryantseva, {Irina N.} and Uvarov, {Nikolay F.} and Fedin, {Vladimir P.}",

note = "Publisher Copyright: {\textcopyright} 2019 Elsevier B.V.",

year = "2019",

month = dec,

day = "15",

doi = "10.1016/j.ssi.2019.115084",

language = "English",

volume = "343",

journal = "Solid State Ionics",

issn = "0167-2738",

publisher = "Elsevier Science B.V.",

}

RIS

TY - JOUR

T1 - Proton conducting hybrid compounds based on CsH5(PO4)2 metal-organic coordination frameworks

AU - Ponomareva, Valentina G.

AU - Kovalenko, Konstantin A.

AU - Gus'kov, Rostislav D.

AU - Bagryantseva, Irina N.

AU - Uvarov, Nikolay F.

AU - Fedin, Vladimir P.

PY - 2019/12/15

Y1 - 2019/12/15

N2 - The hybrid compounds based on CsH5(PO4)2 and metal-organic coordination framework, Cr-MIL-101 matrix, have been first synthesized. Proton conductivity, structural and thermal properties of (1-x)CsH5(PO4)2–xCr-MIL-101 nanocomposite electrolytes (x = 0.02–0.2) were investigated for the first time. The significant increase of proton conductivity has been shown due to the interface interaction of high dispersed mesoporous Cr-MIL-101 and CsH5(PO4)2. According to X-ray diffraction there is no chemical interaction between the components and no new compounds are formed. The data of X-ray diffraction, differential scanning calorimetry and electron microscopy show significant changes in structural and thermodynamic properties of CsH5(PO4)2 in nanocomposites due to dispersion and amorphization. As a result the proton conductivity of systems that increases by 1–3 orders of magnitude up to 10− 2 S/cm at 130 °C in the low humidity conditions, depends on the composition and goes through maximum at x~0.07–0.11. The conductivity of nanocomposites significantly exceeds the ones for the initial salt and the dispersed matrix. Such new approach affords the solid materials with potent proton conducting properties at moderate temperatures.

AB - The hybrid compounds based on CsH5(PO4)2 and metal-organic coordination framework, Cr-MIL-101 matrix, have been first synthesized. Proton conductivity, structural and thermal properties of (1-x)CsH5(PO4)2–xCr-MIL-101 nanocomposite electrolytes (x = 0.02–0.2) were investigated for the first time. The significant increase of proton conductivity has been shown due to the interface interaction of high dispersed mesoporous Cr-MIL-101 and CsH5(PO4)2. According to X-ray diffraction there is no chemical interaction between the components and no new compounds are formed. The data of X-ray diffraction, differential scanning calorimetry and electron microscopy show significant changes in structural and thermodynamic properties of CsH5(PO4)2 in nanocomposites due to dispersion and amorphization. As a result the proton conductivity of systems that increases by 1–3 orders of magnitude up to 10− 2 S/cm at 130 °C in the low humidity conditions, depends on the composition and goes through maximum at x~0.07–0.11. The conductivity of nanocomposites significantly exceeds the ones for the initial salt and the dispersed matrix. Such new approach affords the solid materials with potent proton conducting properties at moderate temperatures.

KW - Cesium pentahydrogen diphosphate

KW - Cr-MIL-101

KW - High proton conductivity

KW - Metal-organic coordination frameworks

KW - Nanocomposites

KW - PHASES

KW - ELECTROLYTE

KW - CSHSO4

KW - FUEL-CELLS

KW - BULK

KW - COMPOSITE

KW - TRANSPORT

KW - TEMPERATURE

KW - CRYSTALS

KW - SURFACE

UR - http://www.scopus.com/inward/record.url?scp=85074222723&partnerID=8YFLogxK

U2 - 10.1016/j.ssi.2019.115084

DO - 10.1016/j.ssi.2019.115084

M3 - Article

AN - SCOPUS:85074222723

VL - 343

JO - Solid State Ionics

JF - Solid State Ionics

SN - 0167-2738

M1 - 115084

ER -

ID: 22087013