Dielectric properties of mesoporous sieves filled with NaNO2

S. V. Baryshnikov; Cheng Tien; E. V. Charnaya; M. K. Lee; D. Michel; W. Bohlmann; E. V. Stukova

doi:10.1080/00150190802026127

Dielectric properties of mesoporous sieves filled with NaNO₂

S. V. Baryshnikov, Cheng Tien, E. V. Charnaya, M. K. Lee, D. Michel, W. Bohlmann, E. V. Stukova

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Abstract

Studies of dielectric properties were carried out for MCM-41 molecular sieves whose pores were filled with NaNO₂ particles and whose pore sizes vary from 20 to 37 Å . The experimental data obtained were used to calculate the permittivity of confined particles on the base of a theoretical model for two-component composites with hexagonal structure and cylindrical inclusions. Additional NMR measurements confirmed that sodium nitrite in pores occurs in two coexistent modifications. A modification with high spin relaxation was suggested to respond for elevated conductivity of the samples under study. It was shown that the increase of the real part of permittivity is caused by the Maxwell-Wagner polarization.

Original language	English
Pages (from-to)	177-186
Number of pages	10
Journal	Ferroelectrics
Volume	363
Issue number	1
DOIs	https://doi.org/10.1080/00150190802026127
Publication status	Published - 2008

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1080/00150190802026127

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title = "Dielectric properties of mesoporous sieves filled with NaNO2",

abstract = "Studies of dielectric properties were carried out for MCM-41 molecular sieves whose pores were filled with NaNO2 particles and whose pore sizes vary from 20 to 37 {\AA} . The experimental data obtained were used to calculate the permittivity of confined particles on the base of a theoretical model for two-component composites with hexagonal structure and cylindrical inclusions. Additional NMR measurements confirmed that sodium nitrite in pores occurs in two coexistent modifications. A modification with high spin relaxation was suggested to respond for elevated conductivity of the samples under study. It was shown that the increase of the real part of permittivity is caused by the Maxwell-Wagner polarization.",

author = "Baryshnikov, {S. V.} and Cheng Tien and Charnaya, {E. V.} and Lee, {M. K.} and D. Michel and W. Bohlmann and Stukova, {E. V.}",

note = "Funding Information: The present work was supported by the Taiwan government under Grant OUA 95-21T-2-017, by the DFG (Germany), and the RFBR (Russia).",

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T1 - Dielectric properties of mesoporous sieves filled with NaNO2

AU - Baryshnikov, S. V.

AU - Tien, Cheng

AU - Charnaya, E. V.

AU - Lee, M. K.

AU - Michel, D.

AU - Bohlmann, W.

AU - Stukova, E. V.

N1 - Funding Information: The present work was supported by the Taiwan government under Grant OUA 95-21T-2-017, by the DFG (Germany), and the RFBR (Russia).

PY - 2008

Y1 - 2008

N2 - Studies of dielectric properties were carried out for MCM-41 molecular sieves whose pores were filled with NaNO2 particles and whose pore sizes vary from 20 to 37 Å . The experimental data obtained were used to calculate the permittivity of confined particles on the base of a theoretical model for two-component composites with hexagonal structure and cylindrical inclusions. Additional NMR measurements confirmed that sodium nitrite in pores occurs in two coexistent modifications. A modification with high spin relaxation was suggested to respond for elevated conductivity of the samples under study. It was shown that the increase of the real part of permittivity is caused by the Maxwell-Wagner polarization.

AB - Studies of dielectric properties were carried out for MCM-41 molecular sieves whose pores were filled with NaNO2 particles and whose pore sizes vary from 20 to 37 Å . The experimental data obtained were used to calculate the permittivity of confined particles on the base of a theoretical model for two-component composites with hexagonal structure and cylindrical inclusions. Additional NMR measurements confirmed that sodium nitrite in pores occurs in two coexistent modifications. A modification with high spin relaxation was suggested to respond for elevated conductivity of the samples under study. It was shown that the increase of the real part of permittivity is caused by the Maxwell-Wagner polarization.

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Dielectric properties of mesoporous sieves filled with NaNO₂

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