Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1485008 | Journal of Non-Crystalline Solids | 2007 | 7 Pages |
Abstract
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.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Fei Teng, Yi Man, Shuhui Liang, G. Buergen, Yongfa Zhu, Wei Han, Ping Xu, Guoxing Xiong, Zhijian Tian,