کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1288613 | 973270 | 2011 | 4 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Nano-structured cathodes based on La0.6Sr0.4Co0.2Fe0.8O3−δ for solid oxide fuel cells Nano-structured cathodes based on La0.6Sr0.4Co0.2Fe0.8O3−δ for solid oxide fuel cells](/preview/png/1288613.png)
Lanthanum-based iron- and cobalt-containing perovskite is a promising cathode material because of its electrocatalytic activity at a relatively low operating temperature in solid oxide fuel cells (SOFCs), i.e., 700–800 °C. To enhance the electrocatalytic reduction of oxidants on La0.6Sr0.4Co0.2Fe0.8O3−δ (LSCF), nanocrystalline LSCF materials are successfully fabricated using a complexing method with chelants and inorganic nano dispersants. When inorganic dispersants are added to the synthesis process, the surface area of the LSCF powder increases from 18 to 88 m2 g−1, which results in higher electrocatalytic activity of the cathode. The performance of a unit cell of a SOFC with nanocrystalline LSCF powders synthesized with nano dispersants is increased by 60%, from 0.7 to 1.2 W cm−2.
Figure optionsDownload as PowerPoint slide
Journal: Journal of Power Sources - Volume 196, Issue 7, 1 April 2011, Pages 3544–3547