Performance of LiCo0.6Zn0.4O2 as a potential cathode material candidate for intermediate solid oxide fuel cell application

International Conference on Sustainable Energy and Green Technology 2018

能源学;生态环境科学

Anasuhah Wan Yusoff, Wan Nor^1 ; Wardah Norman, Nur^1 ; Abdul Samat, Abdullah^1 ; Rao Somalu, Mahendra^1 ; Muchtar, Andanastuti^1^2 ; Akidah Baharuddin, Nurul^1

Fuel Cell Institute, Universiti Kebangsaan Malaysia, UKM, Bangi, Selangor

43600, Malaysia^1

Centre for Engineering Materials and Smart Manufacturing (MERCU), Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, UKM, Bangi, Selangor

43600, Malaysia^2

关键词: Calcined powder;    Cath-ode materials;    Cathode powders;    Electrical conductivity;    Intermediate solid oxide fuel cells;    Proton conducting;    Solid oxide fuel cells (SOFCs);    XRD analysis;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/268/1/012139/pdf
DOI  :  10.1088/1755-1315/268/1/012139

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Li-based materials, previously used in lithium batteries, are now actively applied in solid-oxide fuel cells (SOFCs). The synthesis and characterisation of LiCo0.6Zn0.4O2 (LCZO) cathode powder calcined at 600 °C for SOFC application has been reported. In the present work, LCZO powder was calcined at 700 °C and its properties were investigated. Results showed that the impure phases recorded through X-ray diffraction (XRD) in a previous work decreased with the ZnO phase at approximately 37.4%, and 62.6% of LCZO remained. Transmission electron microscopy was used to study the morphology of the calcined powder, wherein the crystallite size obtained from XRD well agreed with the XRD analysis result. The LCZO particle size calcined at 700 °C was examined with a particle-size analyser. The electrical conductivity of bulk pellet was tested at 400-700 °C, and the highest conductivity of 9.90 Scm-1 was recorded at 700 °C. Overall, this material exhibited excellent potential for proton-conducting SOFCs application.