Mixed Ionic and Electronic Conduction in Mn/Mo Doped Gadolinium Titanate
作者： J.J. Sprague , H.L. Tuller
DOI: 10.1557/PROC-548-527
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摘要: Recent work has shown that Gd2(Ti1-xMOx)2O7 (Mo doped GT) exhibits high levels of mixed conduction under reducing atmospheres, making it suitable as an anode in a solid oxide fuel cell. It decomposes at PO2, however. We have succeeded extending the stability limits GT–Mo to higher PO2 with addition Mn. Our earlier studies on Gd2((MoyMn1-y)xTi1–x)2O7 (GMMT) function T, and composition utilizing impedance spectroscopy X-ray diffraction are extended include joint effects variations x y conductivity material cathodic environments. Defect models explaining dependence partial conductivities oxygen pressure, temperature also presented.
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