Effects of TiO2 and SDC addition on the properties of YSZ electrolyte

Chin Tien Shen, Kan Rong Lee, Yu Pin Hsieh, Sheng Wei Lee, Jeng Kuei Chang, Shian Ching Jang, Chung Jen Tseng

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10 Scopus citations


In this study, we investigate the effects of adding titanium dioxide (TiO2) and samarium doped cerium oxide (SDC) on the properties of yttrium-stabilized zirconia (YSZ) electrolyte. The microstructure, mechanical, and electrochemical properties of the electrolyte are investigated. The performance in CO2 electrolysis is measured by supplying carbon dioxide to Ni-YSZ electrode and nitrogen to LSM electrode. Results show that TiO2 and SDC addition can reduce the sintering temperature and increase grain size. The ionic conductivity is 0.123 S cm−1 at 1000 °C. In addition, the thermal expansion coefficient at 1000 °C is 8.25 × 10−6 K−1. The current density of the cell is 439 mA cm−2 at 1.3 V and 1000 °C in solid oxide electrolysis cell.

Original languageEnglish
Pages (from-to)29426-29431
Number of pages6
JournalInternational Journal of Hydrogen Energy
Issue number56
StatePublished - 12 Nov 2019


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