Protonic conduction in acceptor-doped LaP3O9

Koji Amezawa, Yukinori Kitajima, Yoichi Tomii, Naoichi Yamamoto, Marius Widerøe, Truls Norby

研究成果: Article査読

40 被引用数 (Scopus)

抄録

The electrical conductivity of LaP3O9 doped with 1 mol% of divalent metals (Ca, Sr, and Ba) substituting La has been investigated at p(H2O) = 0.1-5 kPa, p(O2) = 0.01-100 kPa and T = 573-973 K. H/D isotope effects, proton transport number measurements, and independence of conductivity on p(O2) showed that acceptor-doped LaP3O9 exhibits predominantly proton conduction. The conductivity was largely independent of p(H2O) at constant temperature, indicating that the acceptor was charge compensated by protons and exhibited protonic conduction even at low p(H2O). The conductivities depended considerably on the dopant species and increased in the order Ca < Ba < Sr.

本文言語English
ページ(範囲)2867-2870
ページ数4
ジャーナルSolid State Ionics
176
39-40
DOI
出版ステータスPublished - 2005 12月
外部発表はい

ASJC Scopus subject areas

  • 化学 (全般)
  • 材料科学(全般)
  • 凝縮系物理学

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