Proton conductive behaviors of Ba(ZnxNb1−x)O3−δ−y(OH)2y studied by infrared spectroscopy

Kenji Arai; Miwa Saito; Kyohei Suganami; Miki Inada; Katsuro Hayashi; Teruki Motohashi

doi:10.1016/j.jssc.2022.122913

Proton conductive behaviors of Ba(Zn_xNb_1−x)O_3−δ−y(OH)_2y studied by infrared spectroscopy

Kenji Arai, Miwa Saito, Kyohei Suganami, Miki Inada, Katsuro Hayashi, Teruki Motohashi

研究成果: ジャーナルへの寄稿 › 学術誌 › 査読

3 被引用数 (Scopus)

抄録

Proton-conductive behaviors of oxy-hydroxide perovskites Ba(Zn_xNb_1−x)O_3−δ−y(OH)_2y (BZN) were investigated by Fourier transform infrared spectroscopy (FT-IR) at 40–600 °C. The in-situ FT-IR analysis upon heating in flowing N₂ gas revealed a broad IR peak at about 2500–3700 cm⁻¹, attributed to O–H stretching vibration modes. The broadened IR peak was deconvoluted with four Gaussian components, and their relative intensities are dependent on temperature, indicating the presence of site preference of protons in the BZN crystal lattice. The proton site preference in BZN was discussed based on the comparison of spectral features between BZN and Ba(Zr_0.9Y_0.1)O_2.95 as a reference.

本文言語	英語
論文番号	122913
ジャーナル	Journal of Solid State Chemistry
巻	308
DOI	https://doi.org/10.1016/j.jssc.2022.122913
出版ステータス	出版済み - 4月 2022

!!!All Science Journal Classification (ASJC) codes

電子材料、光学材料、および磁性材料
セラミックおよび複合材料
凝縮系物理学
物理化学および理論化学
無機化学
材料化学

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10.1016/j.jssc.2022.122913

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title = "Proton conductive behaviors of Ba(ZnxNb1−x)O3−δ−y(OH)2y studied by infrared spectroscopy",

abstract = "Proton-conductive behaviors of oxy-hydroxide perovskites Ba(ZnxNb1−x)O3−δ−y(OH)2y (BZN) were investigated by Fourier transform infrared spectroscopy (FT-IR) at 40–600 °C. The in-situ FT-IR analysis upon heating in flowing N2 gas revealed a broad IR peak at about 2500–3700 cm−1, attributed to O–H stretching vibration modes. The broadened IR peak was deconvoluted with four Gaussian components, and their relative intensities are dependent on temperature, indicating the presence of site preference of protons in the BZN crystal lattice. The proton site preference in BZN was discussed based on the comparison of spectral features between BZN and Ba(Zr0.9Y0.1)O2.95 as a reference.",

author = "Kenji Arai and Miwa Saito and Kyohei Suganami and Miki Inada and Katsuro Hayashi and Teruki Motohashi",

note = "Funding Information: This work was partly supported by Grant-in-Aid for Scientific Research on Innovative Areas “Mixed anion” ( JP16H06440 , JP17H05490 , and JP19H04707 ) and Grant-in-Aid for Scientific Research (C) ( JP18K04713 ) from the Japan Society for the Promotion of Science (JSPS) . Publisher Copyright: {\textcopyright} 2022 Elsevier Inc.",

year = "2022",

month = apr,

doi = "10.1016/j.jssc.2022.122913",

language = "English",

volume = "308",

journal = "Journal of Solid State Chemistry",

issn = "0022-4596",

publisher = "Academic Press Inc.",

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AU - Arai, Kenji

AU - Saito, Miwa

AU - Suganami, Kyohei

AU - Inada, Miki

AU - Hayashi, Katsuro

AU - Motohashi, Teruki

N1 - Funding Information: This work was partly supported by Grant-in-Aid for Scientific Research on Innovative Areas “Mixed anion” ( JP16H06440 , JP17H05490 , and JP19H04707 ) and Grant-in-Aid for Scientific Research (C) ( JP18K04713 ) from the Japan Society for the Promotion of Science (JSPS) . Publisher Copyright: © 2022 Elsevier Inc.

PY - 2022/4

Y1 - 2022/4

N2 - Proton-conductive behaviors of oxy-hydroxide perovskites Ba(ZnxNb1−x)O3−δ−y(OH)2y (BZN) were investigated by Fourier transform infrared spectroscopy (FT-IR) at 40–600 °C. The in-situ FT-IR analysis upon heating in flowing N2 gas revealed a broad IR peak at about 2500–3700 cm−1, attributed to O–H stretching vibration modes. The broadened IR peak was deconvoluted with four Gaussian components, and their relative intensities are dependent on temperature, indicating the presence of site preference of protons in the BZN crystal lattice. The proton site preference in BZN was discussed based on the comparison of spectral features between BZN and Ba(Zr0.9Y0.1)O2.95 as a reference.

AB - Proton-conductive behaviors of oxy-hydroxide perovskites Ba(ZnxNb1−x)O3−δ−y(OH)2y (BZN) were investigated by Fourier transform infrared spectroscopy (FT-IR) at 40–600 °C. The in-situ FT-IR analysis upon heating in flowing N2 gas revealed a broad IR peak at about 2500–3700 cm−1, attributed to O–H stretching vibration modes. The broadened IR peak was deconvoluted with four Gaussian components, and their relative intensities are dependent on temperature, indicating the presence of site preference of protons in the BZN crystal lattice. The proton site preference in BZN was discussed based on the comparison of spectral features between BZN and Ba(Zr0.9Y0.1)O2.95 as a reference.

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