Raza Rizwan, Abbas Ghazanfar, Liu Qinghua, Patel Imran, Zhu Bin
Department of Energy Technology, Royal Institute of Technology (KTH), 10044, Stockholm, Sweden.
J Nanosci Nanotechnol. 2012 Jun;12(6):4994-7. doi: 10.1166/jnn.2012.4938.
Nanocomposite based cathode materials compatible for low temperature solid oxide fuel cells (LTSOFCs) are being developed. In pursuit of compatible cathode, this research aims to synthesis and investigation nanocomposite La0.3Sr0.2Mn0.1Zn0.4 oxide-Sm0.2Ce0.8O1.9 (LSMZ-SDC) based system. The material was synthesized through wet chemical method and investigated for oxide-ceria composite based electrolyte LTSOFCs. Electrical property was studied by AC electrochemical impedance spectroscopy (EIS). The microstructure, thermal properties, and elemental analysis of the samples were characterized by TGA/DSC, XRD, SEM, respectively. The AC conductivity of cathode was obtained for 2.4 Scm(-1) at 550 degrees C in air. This cathode is compatible with ceria-based composite electrolytes and has improved the stability of the material in SOFC cathode environment.
正在开发适用于低温固体氧化物燃料电池（LTSOFC）的基于纳米复合材料的阴极材料。为了寻求兼容的阴极，本研究旨在合成并研究基于纳米复合材料La0.3Sr0.2Mn0.1Zn0.4氧化物-Sm0.2Ce0.8O1.9（LSMZ-SDC）的体系。该材料通过湿化学法合成，并针对基于氧化物-二氧化铈复合材料的电解质LTSOFC进行了研究。通过交流电化学阻抗谱（EIS）研究了电学性能。分别通过TGA/DSC、XRD、SEM对样品的微观结构、热性能和元素分析进行了表征。在空气中550℃下，阴极的交流电导率为2.4 S/cm。该阴极与基于二氧化铈的复合电解质兼容，并提高了材料在SOFC阴极环境中的稳定性。
