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Glass-Ceramic Sealants for SOEC: Thermal Characterization and Electrical Resistivity in Dual Atmosphere

Author

Listed:
  • Hassan Javed

    (Sunfire GmbH, Gasanstaltstraße 2, 01237 Dresden, Germany)

  • Antonio Gianfranco Sabato

    (IREC-Institut de Recerca en Energia de Catalunya, 08930 Sant Adrià de Besòs, Barcelona, Spain)

  • Mohsen Mansourkiaei

    (Department of Energy (DENERG), Politecnico di Torino, 10129 Turin, Italy)

  • Domenico Ferrero

    (Department of Energy (DENERG), Politecnico di Torino, 10129 Turin, Italy)

  • Massimo Santarelli

    (Department of Energy (DENERG), Politecnico di Torino, 10129 Turin, Italy)

  • Kai Herbrig

    (Sunfire GmbH, Gasanstaltstraße 2, 01237 Dresden, Germany)

  • Christian Walter

    (Sunfire GmbH, Gasanstaltstraße 2, 01237 Dresden, Germany)

  • Federico Smeacetto

    (Department of Applied Science and Technology (DISAT), Politecnico di Torino, 10129 Turin, Italy)

Abstract

A Ba-based glass-ceramic sealant is designed and tested for solid oxide electrolysis cell (SOEC) applications. A suitable SiO 2 /BaO ratio is chosen in order to obtain BaSi 2 O 5 crystalline phase and subsequently favorable thermo-mechanical properties of the glass-ceramic sealant. The glass is analyzed in terms of thermal, thermo-mechanical, chemical, and electrical behavior. Crofer22APU-sealant-Crofer22APU joined samples are tested for 2000 h at 850 °C in a dual atmosphere test rig having reducing atmosphere of H 2 :H 2 O 50/50 (mol%) and under the applied voltage of 1.6 V. In order to simulate the SOEC dynamic working conditions, thermal cycles are performed during the long-term electrical resistivity test. The glass-ceramic shows promising behavior in terms of high density, suitable CTE, and stable electrical resistivity (10 6 –10 7 Ω cm) under SOEC conditions. The SEM-EDS post mortem analysis confirms excellent chemical and thermo-mechanical compatibility of the glass-ceramic with Crofer22APU.

Suggested Citation

  • Hassan Javed & Antonio Gianfranco Sabato & Mohsen Mansourkiaei & Domenico Ferrero & Massimo Santarelli & Kai Herbrig & Christian Walter & Federico Smeacetto, 2020. "Glass-Ceramic Sealants for SOEC: Thermal Characterization and Electrical Resistivity in Dual Atmosphere," Energies, MDPI, vol. 13(14), pages 1-12, July.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:14:p:3682-:d:385768
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    Cited by:

    1. Mohsen Fallah Vostakola & Hasan Ozcan & Rami S. El-Emam & Bahman Amini Horri, 2023. "Recent Advances in High-Temperature Steam Electrolysis with Solid Oxide Electrolysers for Green Hydrogen Production," Energies, MDPI, vol. 16(8), pages 1-50, April.

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