High temperature 1H NMR study of proton conducting oxide SrCe0.95Y0.05H0.004O3-δ

Hideki Maekawa; Naohito Kashii; Jun Ichi Kawamura; Yukio Hinatsu; Tsutomu Yamamura

doi:10.1016/S0167-2738(99)00051-X

High temperature ¹H NMR study of proton conducting oxide SrCe_0.95Y_0.05H_0.004O_3-δ

Hideki Maekawa, Naohito Kashii, Jun Ichi Kawamura, Yukio Hinatsu, Tsutomu Yamamura

NanoTerasu Co-Creation Promotion Division

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15 Citations (Scopus)

Abstract

The ionic motion of protons in yttrium doped SrCeO₃ perovskite has been investigated by means of high temperature ¹H NMR and ac electric conductivity measurements. The temperature dependences of line shapes and spin-lattice relaxation times (T₁) were obtained. The inverse temperature versus logarithm of T₁ plot shows asymmetric temperature dependence with respect to its minimum value, and was well interpreted using the classical Bloembergen, Purcell and Pound (BPP) formula with introducing distributions of the activation energies. The averaged correlation times of the proton hopping were obtained from the T₁ data. The conductivity calculated from the Einstein equation using NMR correlation times assuming the jump distance of proton hopping as 1 angstrom yields quantitative agreement with the measured conductivity in a wide temperature range.

Original language	English
Pages (from-to)	231-236
Number of pages	6
Journal	Solid State Ionics
Volume	122
Issue number	1-4
DOIs	https://doi.org/10.1016/S0167-2738(99)00051-X
Publication status	Published - 1999 Jul 1

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title = "High temperature 1H NMR study of proton conducting oxide SrCe0.95Y0.05H0.004O3-δ",

abstract = "The ionic motion of protons in yttrium doped SrCeO3 perovskite has been investigated by means of high temperature 1H NMR and ac electric conductivity measurements. The temperature dependences of line shapes and spin-lattice relaxation times (T1) were obtained. The inverse temperature versus logarithm of T1 plot shows asymmetric temperature dependence with respect to its minimum value, and was well interpreted using the classical Bloembergen, Purcell and Pound (BPP) formula with introducing distributions of the activation energies. The averaged correlation times of the proton hopping were obtained from the T1 data. The conductivity calculated from the Einstein equation using NMR correlation times assuming the jump distance of proton hopping as 1 angstrom yields quantitative agreement with the measured conductivity in a wide temperature range.",

author = "Hideki Maekawa and Naohito Kashii and Kawamura, {Jun Ichi} and Yukio Hinatsu and Tsutomu Yamamura",

note = "Funding Information: We would like to thank Dr. H. Iwahara and N. Sata for helpful discussions. This work was supported under {\textquoteleft}Research for the Future{\textquoteright} program from the Japan Society for the Promotion of Science: {\textquoteleft}Preparation and Application of Newly Designed Solid Electrolytes{\textquoteright} JSPS-RFTF 96P00102.",

year = "1999",

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doi = "10.1016/S0167-2738(99)00051-X",

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T1 - High temperature 1H NMR study of proton conducting oxide SrCe0.95Y0.05H0.004O3-δ

AU - Maekawa, Hideki

AU - Kashii, Naohito

AU - Kawamura, Jun Ichi

AU - Hinatsu, Yukio

AU - Yamamura, Tsutomu

N1 - Funding Information: We would like to thank Dr. H. Iwahara and N. Sata for helpful discussions. This work was supported under ‘Research for the Future’ program from the Japan Society for the Promotion of Science: ‘Preparation and Application of Newly Designed Solid Electrolytes’ JSPS-RFTF 96P00102.

PY - 1999/7/1

Y1 - 1999/7/1

N2 - The ionic motion of protons in yttrium doped SrCeO3 perovskite has been investigated by means of high temperature 1H NMR and ac electric conductivity measurements. The temperature dependences of line shapes and spin-lattice relaxation times (T1) were obtained. The inverse temperature versus logarithm of T1 plot shows asymmetric temperature dependence with respect to its minimum value, and was well interpreted using the classical Bloembergen, Purcell and Pound (BPP) formula with introducing distributions of the activation energies. The averaged correlation times of the proton hopping were obtained from the T1 data. The conductivity calculated from the Einstein equation using NMR correlation times assuming the jump distance of proton hopping as 1 angstrom yields quantitative agreement with the measured conductivity in a wide temperature range.

AB - The ionic motion of protons in yttrium doped SrCeO3 perovskite has been investigated by means of high temperature 1H NMR and ac electric conductivity measurements. The temperature dependences of line shapes and spin-lattice relaxation times (T1) were obtained. The inverse temperature versus logarithm of T1 plot shows asymmetric temperature dependence with respect to its minimum value, and was well interpreted using the classical Bloembergen, Purcell and Pound (BPP) formula with introducing distributions of the activation energies. The averaged correlation times of the proton hopping were obtained from the T1 data. The conductivity calculated from the Einstein equation using NMR correlation times assuming the jump distance of proton hopping as 1 angstrom yields quantitative agreement with the measured conductivity in a wide temperature range.

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SN - 0167-2738

VL - 122

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EP - 236

JO - Solid State Ionics

JF - Solid State Ionics

IS - 1-4

ER -

High temperature ¹H NMR study of proton conducting oxide SrCe_0.95Y_0.05H_0.004O_3-δ

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