کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1485008 | 1510530 | 2007 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Crystal structure stability and catalytic activity of magnetoplumbite (MP) catalyst doped with Mn and Mg
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
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چکیده انگلیسی
LaMgxMn1−xAl11O19 catalysts with Magnetoplumbite (MP) structure were prepared by the reverse microemulsion method, where x values were varied in the range of 0–1. The effects of Mn and Mg introductions on crystalline phase compositions, texture and activities of the catalysts were investigated. The catalysts were characterized by XRD, N2 adsorption, TEM, H2-TPR, TG-DTA, etc. The results showed that LaMg0.5Mn0.5Al11O19 catalyst had high surface area (40.1 m2 g−1/1200 °C 5 h); LaMg0.5Mn0.5Al11O19 catalyst exhibited the high activity for CH4 combustion (T10 = 470 °C, T90 = 690 °C). It was believed that a synergetic effect of Mg and Mn is beneficial to enhance the stability and catalytic activity of the crystals.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Non-Crystalline Solids - Volume 353, Issues 52–54, 15 December 2007, Pages 4806–4812
Journal: Journal of Non-Crystalline Solids - Volume 353, Issues 52–54, 15 December 2007, Pages 4806–4812
نویسندگان
Fei Teng, Yi Man, Shuhui Liang, G. Buergen, Yongfa Zhu, Wei Han, Ping Xu, Guoxing Xiong, Zhijian Tian,