Lowered Sintering Temperature on Synthesis of La9.33Si6O26 (LSO) – La0.8Sr0.2Ga0.8Mg0.2O2.55 (LSGM) Electrolyte Composite and the Electrical Performance on La0.7Ca0.3MnO3 (LCM) Cathode

DOI: https://doi.org/10.14710/jksa.21.4.205-210

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Published: 01-10-2018
Section: Research Articles
In Vol 21, No 4 (2018): volume 21 Issue 4 Year 2018
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Solid oxide fuel cell (SOFC) is the device that can convert chemical energy into electricity with highest efficiency among other fuel cell. La9.33Si6O26 (LSO) is the potential electrolyte at intermediate operation temperature SOFC. Low ionic conductivity of lanthanum silicate-based electrolyte will lead into bad electrical performance on lanthanum manganite-based anode. In this study, LSO was combine with La0.8Sr0.2Ga0.8Mg0.2O2.55 (LSGM) electrolyte by using conventional solid state reaction to enhance the electrical performance of LSO on LCM cathode. However, pre-requisite high sintering temperature on preparation of LSO-LSGM composite will lead into phase transition phase of LSGM that may affect in decreasing the electrical performance. This study resulted that lowered sintering temperature from its ideal temperature still give an improved electrical performance of LCM/LSO-LSGM/LCM symmetrical cell. The ASR value is 0.14 Ω.cm2 which much lower than its analogous symmetrical cell, LSM/LSO/LSM that was reported before.

Keywords

SOFC; LSO-LSGM; ASR; LCM/LSO-LSGM/LCM

  1. Yoga Trianzar Malik 
    Chemistry Department, Faculty of Mathematics and Science, Universitas Padjadjaran Bandung, Indonesia
    Chemistry Department, Faculty of Mathematics and Science
  2. Atiek Rostika Noviyanti  Orcid Scopus Sinta
    Chemistry Department, Faculty of Mathematics and Science, Universitas Padjadjaran Bandung, Indonesia
    Chemistry Department, Faculty of Mathematics and Science
  3. Dani Gustaman Syarif  Scopus Sinta
    National Nuclear Energy Agency Indonesia (PSTNT)-BATAN Bandung, Indonesia
    Center for Applied Nuclear Science and Technology
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