Formation of solid electrolyte films on porous supporting electrodes |
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Authors: | O F Bobryonok M R Predtechenskii |
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Institution: | (1) Institute of Thermal Physics, Siberian Division, Russian Academy of Sciences, pr. akademika Lavrent’eva 1, Novosibirsk, 630090, Russia;(2) “International Scientific Center for Thermal Physics and Energetics” LLC, Novosibirsk, Russia |
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Abstract: | In this work, the method of chemical deposition from the gas phase of organometallic compounds (CVDOM) was used to obtain thin electrolyte films of zirconia stabilized by yttria (YSZ) on a supporting electrode. Tetrakis(2,2,6,6-tetramethyl-3,5-heptanedionato)zirconium and tris(2,2,6,6-tetramethyl-3,5-heptanedionato)yttrium often termed as zirconium (IV) Zr(dpm)4 and yttrium (III) Y(dpm)3 dipivaloylmethanates were used as precursors for film deposition. Gas-tight electrolyte films were obtained on a supporting anode with a thickness of 4–10 μm at moderate deposition temperatures of 500–700°C. An electrochemical cell was prepared and tested using the obtained films. The cell allowed obtaining the power density values of 680, 360, and 175 mW/cm2 at the temperatures of 800, 700, and 600°C, accordingly. |
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Keywords: | solid-oxide fuel cells organometallic compounds thin-film electrolyte supporting electrode |
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