Журнал химической инженерии и технологических процессов
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Use Alloy Quasicrystalline Al62, 2cu25, 3fe12, 5 for Steam Reforming of Methanol

Jamshidi ALCL, Nascimento L, Rodbari RJ, Barbosa GF, Machado FLA, Pacheco JGA and Barbosa CMBM

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.