/npsi/ctrl?lang=en http://nparc.cisti-icist.nrc-cnrc.gc.ca/npsi/ctrl?lang=fr Access and use of this website and the material on it are subject to the Terms and Conditions set forth at http://nparc.cisti-icist.nrc-cnrc.gc.ca/npsi/jsp/nparc_cp.jsp?lang=en NRC Publications Archive Archives des publications du CNRCThis publication could be one of several versions: author's original, accepted manuscript or the publisher's version. / La version de cette publication peut être l'une des suivantes : la version prépublication de l'auteur, la version acceptée du manuscrit ou la version de l'éditeur. For the publisher's version, please access the DOI link below./ Pour consulter la version de l'éditeur, utilisez le lien DOI ci-dessous.http://dx.doi.org/10.1016/j.jpowsour.2012.11.094Journal of Power Sources, 229, pp. 48-57, 2012-11-30 Performance and stability of proton conducting solid oxide fuel cells based on yttrium-doped barium cerate-zirconate thin-film electrolyte Yoo, Yeong; Lim, Nguon . The open circuit voltages were around 1.12-1.13 V at 600 C indicating negligible gas leakage or mixed conduction through the electrolyte. The maximum power density of 493 mW cm -2 was obtained at 600 C and 0.7 V under air as the oxidant gas and humid 75% H 2 in N 2 (2.76% H 2 O) as the fuel gas at a gas flow rate of 100 ml min -1. The area specific resistance of an anode supported button cell of BSCF-BCZY // BCZY // NiO-BCZY in fuel cell mode was about 0.46 cm 2 and in the electrolysis mode was 0.26 cm 2 at 600 °C, indicating efficient reversible SOFCs. The single cell performance was stable for over 600 h at 600 C under humid 75% H 2 in N 2 (2.76% H 2 O) as the fuel gas and air as the oxidant gas. The stability of BCZY electrolyte in water-containing atmospheres was investigated by exposing sintered BCZY pellets to humid air (2.76% H 2 O) at 200 C for 24 h or soaking them in boiling water for 3 h.

The high performance anode supported single cells for ammonia fueled SOFCs comprising of BSCF (Ba0.5Sr0.5Co0.8Fe0.2O3- δ)//BCY//NiO-BCY have been fabricated by co-pressing for depositing 50 µm thin film electrolytes. The electrolytes prepared by co-pressing technology were fully dense with no formation of secondary phases and observed to be crack-free. The electrochemical performance of single cells was characterized at the temperature 600-700 {degree sign}C under humid 75% H2 in N2 (3% H2O) similar to cracked ammonia as the fuel gas and air as the oxidant gas at a gas flow rate of 100 mL min-1. The open circuit voltages were around 1.02 V at 600 {degree sign}C indicating little gas leakage or mixed conduction through the electrolyte. Maximum power densities of 220, 190 and 160 mW cm- 2 from single cells were obtained at 700, 650 and 600 {degree sign}C, respectively under humid 75% H2 in N2 (3% H2O) and air.

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