Synthesis and properties of solid electrolyte Ce0.9Gd0.1O2–δ with Co, Cu, Mn, Zn doping

Alexey V. Nikonov, Alexey V. Spirin, Vladimir Rudolfovich Khrustov, С. Н. Паранин, Nikita B. Pavzderin, Kairat A. Kuterbekov, Turlybek N. Nurakhmetov, Y. K. Atazhan

2016

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DOI 10.1134/s0020168516070116

Data confidence 70 medium

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Abstract

The influence of small additions (1, 3, 5 mol %) of transition metal (Co, Cu, Mn, Zn) oxides on the properties of solid electrolyte Ce 0.9 Gd 0.1 O 2–δ (GDC) have been investigated. It has been shown that the addition of dopants results in intensification of GDC sintering and reduction of the shrinkage end temperature by 300–400°C, which decreases in the sequence Zn–Mn–Co–Cu. The ultimate dopant concentration above which the further activation of GDC sintering does not occur is about 3 mol % for Co, Cu, and Mn and about 1 mol % for Zn. It has been shown that Co and Cu increase the total conductivity of GDC, while Mn and Zn decrease it.