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首页> 外文期刊>Journal of Chemical Engineering & Process Technology >Use Alloy Quasicrystalline Al62, 2cu25, 3fe12, 5 for Steam Reforming of Methanol
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Use Alloy Quasicrystalline Al62, 2cu25, 3fe12, 5 for Steam Reforming of Methanol

机译:使用合金准晶体Al62、2cu25、3fe12、5进行甲醇蒸汽重整

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This study shows the good performance of quasicrystal Al62,2Cu25,3Fe12,5 as catalyst in catalytic reactions. The metal catalyst without being leached with acid or base with the stoichiometric composition of dry Al62,2Cu25,3Fe12,5 among the reactions shown to be a partial oxidation occurred , which formation of the products was methanol, methanal + methanoic acid, water and dimethyl ether. For this research used experimental techniques as X-Ray Diffraction-XRD to follow the evolution of the alloy phase, the Scanning Electron Microscopy-SEM allowing the study of surface microstructure, and Transmission Electron Microscopy-TEM studies the morphology of internal phase, and defects quasicrystalline nuclei; tests for the catalytic conversion of methanol and selectivity and products formed from this material used as catalyst. The activity and stability of catalyst quasicrystal for steam reforming of methanol showed sufficient performance compared to other catalysts. The Fe and Cu species highly dispersed in the homogeneous layer quasicrystal catalyst increases the catalytic activity and suppresses the aggregation of Cu particles. We propose that the quasicrystal can be a good catalyst to be used in catalytic steam reforming, with high catalytic activity and excellent thermal stability.
机译:这项研究表明准晶体Al62,2Cu25,3Fe12,5在催化反应中具有良好的催化性能。金属催化剂未用酸或碱浸出,化学计量组成为干燥的Al62,2Cu25,3Fe12,5,发生部分氧化,反应产物为甲醇,甲缩醛+甲磺酸,水和二甲基。醚。为了进行这项研究,我们使用了X射线衍射-XRD等实验技术来追踪合金相的演变;使用扫描电子显微镜-SEM可以研究表面微观结构;使用透射电子显微镜-TEM可以研究内相和缺陷的形态准晶核测试甲醇的催化转化率和选择性,以及由这种材料形成的产物用作催化剂。与其他催化剂相比,用于甲醇蒸汽重整的准晶体催化剂的活性和稳定性均显示出足够的性能。高度分散在均相准晶体催化剂中的Fe和Cu种类增加了催化活性并抑制了Cu颗粒的聚集。我们认为准晶体可以作为催化蒸汽重整的良好催化剂,具有较高的催化活性和优异的热稳定性。

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