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Effect of SiO2 Concentration on the Electrical Conductivity of M2(WO4)3/SiO2 (M = La, Sm) Composites. / Guseva, A. F.; Pestereva, N. N.; Pyrlik, E. V. et al.
In: Inorganic Materials, Vol. 58, No. 6, 01.06.2022, p. 612-619.

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Guseva AF, Pestereva NN, Pyrlik EV, Korona DV. Effect of SiO2 Concentration on the Electrical Conductivity of M2(WO4)3/SiO2 (M = La, Sm) Composites. Inorganic Materials. 2022 Jun 1;58(6):612-619. doi: 10.1134/S0020168522060036

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Guseva, A. F. ; Pestereva, N. N. ; Pyrlik, E. V. et al. / Effect of SiO2 Concentration on the Electrical Conductivity of M2(WO4)3/SiO2 (M = La, Sm) Composites. In: Inorganic Materials. 2022 ; Vol. 58, No. 6. pp. 612-619.

BibTeX

@article{6904db78db9f450187c8eda2e1a28b3c,
title = "Effect of SiO2 Concentration on the Electrical Conductivity of M2(WO4)3/SiO2 (M = La, Sm) Composites",
abstract = "Composites with the general formulas (1 – x)La2(WO4)3–xSiO2 and (1 – x)Sm2(WO4)3–xSiO2 have been prepared by solid-state reactions. The phase composition and thermodynamic stability of the composites have been demonstrated by X-ray diffraction and thermal analysis (thermogravimetry and differential scanning calorimetry), respectively. The morphology of the composites has been examined by scanning electron microscopy in combination with energy dispersive spectroscopy. The electrical conductivity of the composites has been measured as a function of temperature and oxygen pressure and shown to have an ionic character. Heterogeneous doping of lanthanum and samarium tungstates has been found to have opposite effects: the addition of 1–5 mol % SiO2 nanopowder to La2(WO4)3 leads to an increase in its electrical conductivity by seven times, whereas analogous heterogeneous doping of Sm2(WO4)3 reduces its electrical conductivity.",
keywords = "composite conductivity effect, composite solid electrolytes, heterogeneous doping, lanthanum tungstate, nanoparticulate silicon oxide, samarium tungstate",
author = "Guseva, {A. F.} and Pestereva, {N. N.} and Pyrlik, {E. V.} and Korona, {D. V.}",
year = "2022",
month = jun,
day = "1",
doi = "10.1134/S0020168522060036",
language = "English",
volume = "58",
pages = "612--619",
journal = "Inorganic Materials",
issn = "0020-1685",
publisher = "Maik Nauka-Interperiodica Publishing",
number = "6",

}

RIS

TY - JOUR

T1 - Effect of SiO2 Concentration on the Electrical Conductivity of M2(WO4)3/SiO2 (M = La, Sm) Composites

AU - Guseva, A. F.

AU - Pestereva, N. N.

AU - Pyrlik, E. V.

AU - Korona, D. V.

PY - 2022/6/1

Y1 - 2022/6/1

N2 - Composites with the general formulas (1 – x)La2(WO4)3–xSiO2 and (1 – x)Sm2(WO4)3–xSiO2 have been prepared by solid-state reactions. The phase composition and thermodynamic stability of the composites have been demonstrated by X-ray diffraction and thermal analysis (thermogravimetry and differential scanning calorimetry), respectively. The morphology of the composites has been examined by scanning electron microscopy in combination with energy dispersive spectroscopy. The electrical conductivity of the composites has been measured as a function of temperature and oxygen pressure and shown to have an ionic character. Heterogeneous doping of lanthanum and samarium tungstates has been found to have opposite effects: the addition of 1–5 mol % SiO2 nanopowder to La2(WO4)3 leads to an increase in its electrical conductivity by seven times, whereas analogous heterogeneous doping of Sm2(WO4)3 reduces its electrical conductivity.

AB - Composites with the general formulas (1 – x)La2(WO4)3–xSiO2 and (1 – x)Sm2(WO4)3–xSiO2 have been prepared by solid-state reactions. The phase composition and thermodynamic stability of the composites have been demonstrated by X-ray diffraction and thermal analysis (thermogravimetry and differential scanning calorimetry), respectively. The morphology of the composites has been examined by scanning electron microscopy in combination with energy dispersive spectroscopy. The electrical conductivity of the composites has been measured as a function of temperature and oxygen pressure and shown to have an ionic character. Heterogeneous doping of lanthanum and samarium tungstates has been found to have opposite effects: the addition of 1–5 mol % SiO2 nanopowder to La2(WO4)3 leads to an increase in its electrical conductivity by seven times, whereas analogous heterogeneous doping of Sm2(WO4)3 reduces its electrical conductivity.

KW - composite conductivity effect

KW - composite solid electrolytes

KW - heterogeneous doping

KW - lanthanum tungstate

KW - nanoparticulate silicon oxide

KW - samarium tungstate

UR - https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=tsmetrics&SrcApp=tsm_test&DestApp=WOS_CPL&DestLinkType=FullRecord&KeyUT=000854863300008

UR - http://www.scopus.com/inward/record.url?partnerID=8YFLogxK&scp=85138252125

U2 - 10.1134/S0020168522060036

DO - 10.1134/S0020168522060036

M3 - Article

VL - 58

SP - 612

EP - 619

JO - Inorganic Materials

JF - Inorganic Materials

SN - 0020-1685

IS - 6

ER -

ID: 30949246