کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1292684 | 973394 | 2006 | 4 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Sol–gel processing of Sr0.5Sm0.5CoO3 film Sol–gel processing of Sr0.5Sm0.5CoO3 film](/preview/png/1292684.png)
Strontium-doped samarium cobaltite (Sm0.5Sr0.5CoO3, SSC) has attracted increasing attention as cathode material for intermediate-temperature solid oxide fuel cells (IT-SOFCs) due to its mixed-conduction characteristics and relatively high ionic conductivity. In this paper, sol–gel-derived SSC films were deposited on yttria stabilized zirconia (YSZ) substrates from an alkoxide solution of strontium isopropoxide, samarium isopropoxide and cobalt isopropoxide. The alkoxide solution was chelated with 2-ethylacetoacetate (CH3COCH2COOC2H5), and the effect of polyethylene glycol (PEG) addition on the crystallization behavior and microstructure evolution of SSC films was investigated. XRD, TGA and SEM measurements indicated that single-perovskite phase SSC films were formed when the films were heated at 700 °C, and PEG could significantly refine the crystalline size of the SSC film from around 100–50 nm.
Journal: Journal of Power Sources - Volume 157, Issue 1, 19 June 2006, Pages 385–388