화학공학소재연구정보센터
International Journal of Hydrogen Energy, Vol.40, No.37, 12784-12789, 2015
Characteristic and preparation of Ce0.5Zr0.5O2 as the anode support for solid oxide fuel cells by phase inversion technology
Nanoscale oxide Ce0.5Zr0.5O2 powder has been prepared by a microwave combustion method as the anode material for intermediate-temperature solid oxide fuel cells (IT-SOFCs). The Ce0.5Zr0.5O2 material has been characterized using X-ray diffraction (XRD), scanning electron microscope (SEM) and the BET method. The NiO-Ce0.5Zr0.5O2 anode-supported cells are prepared by phase inversion technique and YSZ electrolyte thin film is obtained by dip-coating. The dual-pore structure anode and dense electrolyte are observed by SEM after co-firing process. Excellent electrochemical performance of single cell is demonstrated operating on hydrogen (3% H2O), exhibiting the maximum power densities of 218, 342 and 508 mW cm(-2) at 700, 750 and 800 degrees C, respectively. In addition, NiO-Ce0.5Zr0.5O2 anode possess high resistance to carbon deposition, indicating which could be promising candidate anodes for direct hydrocarbon SOFCs. Copyright (C) 2015, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.