Wyniki wyszukiwania dla: STRONTIUM FERRITE

• Performance and Stability in H2S of SrFe0.75Mo0.25O3-δ as Electrode in Proton Ceramic Fuel Cells

  Publikacja

  • S. L. Wachowski
  • Z. Li
  • J. Polfus
  • T. Norby

  - JOURNAL OF THE EUROPEAN CERAMIC SOCIETY - Rok 2017

  The H2S-tolerance of SrFe0.75Mo0.25O3-δ (SFM) electrodes has been investigated in symmetric proton ceramic fuel cells (PCFC) with BaZr0.8Ce0.1Y0.1O3-δ (BZCY81) electrolyte. The ionic conductivity of the electrolyte under wet reducing conditions was found to be insignificantly affected in the presence of up to 5000 ppm H2S. The fuel cell exhibited an OCV of about 0.9 V at 700 °C, which dropped to about 0.6 V and 0.4 V upon exposure...

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• Structural Properties and Water Uptake of SrTi1−xFexO3−x/2−δ

  Publikacja

  • T. Miruszewski
  • K. Dzierzgowski
  • P. Winiarz
  • S. L. Wachowski
  • A. D. Mielewczyk-Gryń
  • M. Gazda

  - Materials - Rok 2020

  In this work, Fe-doped strontium titanate SrTi1−xFexO3−x/2−δ, for x = 0–1 (STFx), has been fabricated and studied. The structure and microstructure analysis showed that the Fe amount in SrTi1−xFexO3−x/2−δ has a great influence on the lattice parameter and microstructure, including the porosity and grain size. Oxygen nonstoichiometry studies performed by thermogravimetry at different atmospheres showed that the Fe-rich compositions...

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