Title of article
Impact of synthesis technique on the structure and electrochemical characteristics of Pr0.6Sr0.4Co0.2Fe0.8O3 − δ (PSCF) cathode material
Author/Authors
Guo، نويسنده , , Yaqin and Yin، نويسنده , , Yi-Mei and Tong، نويسنده , , Ze and Yin، نويسنده , , Jie-Wei and Xiong، نويسنده , , Ming-Wen and Ma، نويسنده , , Zi-Feng، نويسنده ,
Issue Information
هفته نامه با شماره پیاپی سال 2011
Pages
5
From page
18
To page
22
Abstract
Effect of preparation method for Pr0.6Sr0.4Co0.2Fe0.8O3 − δ (PSCF) on its electrochemical performance was investigated. Powder samples were synthesized by hexamethylenetetramine (HMTA) and EDTA–citric acid (EC) techniques, respectively. The particles synthesized by HMTA were smaller than those prepared by EC method as proved by TEM. X-ray photoelectron spectroscopy illuminated that more oxygen sites including oxygen vacancy on the surface of HMTA-derived PSCF exist than that of EC-derived PSCF. The area specific resistance (ASR) value of HMTA-derived PSCF cathode was as low as 0.454 Ω cm2 at 600 °C, whereas the ASR value of EC-derived PSCF was 0.641 Ω cm2. The results in the present study demonstrated the advantages of the HMTA method in the synthesis of highly catalytic active PSCF oxide powder for SOFCs.
Keywords
solid oxide fuel cells , Synthesis technique , Cathode material , polarization resistance
Journal title
Solid State Ionics
Serial Year
2011
Journal title
Solid State Ionics
Record number
1710833
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