Infrared study of high-temperature proton-conducting aliovalently doped SrZrO3 and BaZrO3 formation of YO6 clusters in Y-doped SrZrO3

Takahisa Omata, Yoshiyuki Noguchi, Shinya Otsuka-Yao-Matsuo

研究成果: Article査読

23 被引用数 (Scopus)

抄録

Infrared spectra for the O-H stretching vibration, νOH, region were studied for Sc- and Y-doped SrZrO3 and Y-doped BaZrO 3 ceramics. For Sc-doped SrZrO3 and Y-doped BaZrO 3, two intense νOH bands at ∼ 3300 and ∼ 3030 cm-1 were observed for the low doping level. With increasing doping level, two νOH bands at ∼ 2450 and ∼ 1900 cm-1 appeared in addition to the bands at ∼ 3300 and ∼ 3030 cm-1 and increased their intensities. However, intensities of the bands at ∼ 2450 and ∼ 1900 cm-1 were considerably smaller than those of the bands at ∼ 3300 and ∼ 3030 cm-1. In contrast to Sc-doped SrZrO3, four bands at ∼ 3300, ∼ 3030, ∼ 2450, and ∼ 1900 cm-1 were observed for the low doping level in Y-doped SrZrO3; furthermore, the intensities of the four bands were comparable and independent of Y-doping level. Thus, the two bands at ∼ 3300 and ∼ 3030 cm-1 were attributable to the proton bonded to the oxygen between dopant MIII and the host Zr ions, i.e., M III-OH-Zr. The bands at ∼ 2450 and ∼ 1900 cm-1 were attributed to the proton bonded to the oxygen between the two dopants, i.e., MIII-OH-MIII The present results revealed that dopant Y in SrZrO3 aggregated on an atomic scale and formed the YO6 cluster even for the low doping level.

本文言語English
ページ(範囲)E200-E205
ジャーナルJournal of the Electrochemical Society
152
6
DOI
出版ステータスPublished - 2005
外部発表はい

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 再生可能エネルギー、持続可能性、環境
  • 表面、皮膜および薄膜
  • 電気化学
  • 材料化学

フィンガープリント

「Infrared study of high-temperature proton-conducting aliovalently doped SrZrO3 and BaZrO3 formation of YO6 clusters in Y-doped SrZrO3」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル