Development of Sr0.6Ba0.4Ce0.9Pr0.1O3-δ Electrolyte for Proton-Conducting Solid Oxide Fuel Cell Application

International Conference on Sustainable Energy and Green Technology 2018

能源学;生态环境科学

Norman, N.W.^1 ; Wan Yusoff, W.N.A.^1 ; Jais, A.A.^1 ; Somalu, M.R.^1 ; Muchtar, A.^1^2

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

43600, Malaysia^1

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

43600, Malaysia^2

关键词: Amorphous phase;    Electrolyte powders;    Field emission scanning electron microscopy;    Glycine nitrates;    Morphological structures;    Proton-conducting solid oxide fuel cells;    Relative density;    Synthesized powder;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/268/1/012147/pdf
DOI  :  10.1088/1755-1315/268/1/012147

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Sr0.6Ba0.4Ce0.9Pr0.1O3-δ is synthesized by the glycine-nitrate method. The synthesized powder and resultant electrolyte pellet are systematically characterised for proton-conducting solid oxide fuel cell application. The thermal decomposition and purity of the electrolyte powder were analysed by thermogravimetric analysis (TGA) and X-ray diffraction (XRD), respectively. The morphological structure and chemical stability of the electrolyte pellets are examined by field-emission scanning electron microscopy (FESEM) and XRD, respectively. The selective material decomposes at 1000 °C as recorded by TGA. The calcined powder at 1000 °C is used to produce the electrolyte pellet. The pellet sintered at 1400 °C achieves the average relative density of 94% as measured by Archimedes' method and displays good grain growth with a visible grain boundary. The chemical stability of the pellet is also determined under boiling water for 2 h. The tolerance towards H2O for the sample improved with the presence of Sr upon exposure to boiling water even though some amorphous phase forms. Based on the result, Sr0.6Ba0.4Ce0.9Pr0.1O3-δ is considered as a potential electrolyte for proton-conducting solid oxide fuel cells.