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Water uptake analysis of acceptor-doped lanthanum orthoniobates

Authors
  • Mielewczyk-Gryn, A
  • Wachowski, S
  • Przesniak-Welenc, M
  • Dzierzgowski, K
  • Regoutz, A
  • Payne, DJ
  • Gazda, M
Publication Date
Mar 22, 2019
Source
Spiral - Imperial College Digital Repository
Keywords
License
Unknown

Abstract

In this work, lanthanum orthoniobates doped with either antimony, calcium, or both have been synthesized and studied. The water uptake of the investigated materials has been analyzed by means of thermogravimetric studies. The results show the difference between the thermodynamics of hydration between the lanthanum orthoniobate system and other proton conducting ceramics. The relation between the water uptake and effective acceptor doping for the investigated system has been found, and the energetics of the water uptake relation are discussed.

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