کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1613318 | 1516317 | 2013 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
La0.75Sr0.25âxCexCr0.5Mn0.5O3âδ electrode material for symmetric solid oxide fuel cells with H2S-containing fuel
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
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چکیده انگلیسی
A series of materials La0.75Sr0.25âxCexCr0.5Mn0.5O3âδ (LSCCM, x = 0, 0.1, 0.13 and 0.15) were synthesized by the sol-gel process, and their structures were demonstrated using X-ray diffraction (XRD). The best ratio of ceria-substitution in LSCCM series was studied in detail by H2 temperature programmed reduction (H2-TPR), O2 temperature programmed desorption (O2-TPD), and Fourier transform infrared (FTIR). The catalytic activity results of H2-TPR and O2-TPD prove that ceria-substitution x = 0.15 for La0.75Sr0.25âxCexCr0.5Mn0.5O3âδ has the best catalytic activity, but the FTIR results show the material with high ceria content is not resistant to sulfur. Taking account both catalytic activity and sulfur tolerance, ceria-substitution x = 0.13 is an optimum for La0.75Sr0.25âxCexCr0.5Mn0.5O3âδ, with which maximal power density of 17.86 mW cmâ2 can be attained in 5% H2S-5% wet H2 at 900 °C.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 576, 5 November 2013, Pages 341-344
Journal: Journal of Alloys and Compounds - Volume 576, 5 November 2013, Pages 341-344
نویسندگان
Yang Song, Wenyi Tan, Dandan Xu, Yunfei Bu, Qin Zhong,