Solid oxide fuel cell with a spin-coated yttria stabilized zirconia/gadolinia doped ceria bi-layer electrolyte

Jingyu Li, Lijun Fan, Nianjun Hou, Yicheng Zhao*, Yongdan Li

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

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Abstract

A thin yttria stabilized zirconia (YSZ)/gadolinia doped ceria (GDC) bi-layer membrane is fabricated through the slurry spin coating technique and used as an electrolyte of a solid oxide fuel cell with La0.6Sr0.4Co0.2Fe0.8O3−δ as the cathode. The viscosity of the YSZ slurry is controlled by adding ethanol in the terpineol solvent, which shows a negligible effect on the thickness but a remarkable influence on the porosity of the YSZ film. The thickness of the YSZ layer increases with the YSZ content in the slurry. The YSZ films are pre-sintered at various temperatures, and the one sintered at 1200 °C has a moderate interaction with the GDC slurry, forming a 10 μm-thick YSZ/GDC bilayer with a low porosity and a low ohmic resistance. The corresponding single cell shows a maximum power density of 1480 mW cm−2 at 750 °C.

Original languageEnglish
Pages (from-to)13220-13227
Number of pages8
JournalRSC Advances
Volume12
Issue number21
DOIs
Publication statusPublished - 3 May 2022
MoE publication typeA1 Journal article-refereed

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