@article{eb8cb5d035a24803a8a05016f1a8461b,
title = "Protonic conduction in acceptor-doped LaP3O9",
abstract = "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.",
keywords = "Lanthanum phosphate, Protonic conduction",
author = "Koji Amezawa and Yukinori Kitajima and Yoichi Tomii and Naoichi Yamamoto and Marius Wider{\o}e and Truls Norby",
note = "Funding Information: Part of this work was carried out with the financial support of the Hosokawa Powder Technology Foundation. This work was also supported by the Grant-in-Aid for Scientific Research from the Ministry of Education, Culture, Sports, Science, and Technology of Japan. The authors thank Dr. H. Miyamoto and Mr. Y. Nishikawa at the Technology Research Institute of Osaka Prefecture, Japan, for their help on material preparation. MW's contribution was enabled by Ph.D. scholarships from the Nordic Energy Research Programme and from the Functional materials and nanotechnology programme of the University of Oslo (Funmat@UiO).",
year = "2005",
month = dec,
doi = "10.1016/j.ssi.2005.09.017",
language = "English",
volume = "176",
pages = "2867--2870",
journal = "Solid State Ionics",
issn = "0167-2738",
publisher = "Elsevier",
number = "39-40",
}