Effects of cerium doping on the performance of LSCF cathodes for intermediate temperature solid oxide fuel cells
By Zhou, Feng; Liu, Yihui; Zhao, Xiaofei; Tang, Wenxin; Yang, Shengbing; Zhong, Shaohua; Wei, Mingrui
Published in International Journal of Hydrogen Energy
2018
Abstract
In this paper, effects of Ce substitution of La0.6Sr0.4Co0.2Fe0.8O3 (LSCF) on the crystal structure have been investigated by XRD Rietveld refinement and results show that Ce doping at La-sites leads to lattice expansion without changing centrosymmetric cubic space group of LSCF. The electrochemical results suggest that the electrocatalytic activity of LSCF cathodes is enhanced by Ce doping. The values of oxygen surface exchange coefficient of LSCF, LCSCF03, LCSCF06, measured by electrical conductivity relaxation (ECR) method, are 5.6
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