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Syngas production via dry reforming of methane over Ni/Al2O3–MgO nanocatalyst synthesized using ultrasound energy

2013; Elsevier BV; Volume: 20; Issue: 4 Linguagem: Inglês

10.1016/j.jiec.2013.08.041

1876-794X

Mozaffar Abdollahifar, Mohammad Haghighi, Ali Akbar Babaluo,

Catalytic Processes in Materials Science

The Ni/Al2O3–MgO nanocatalyst with Al/Mg ratio of 1.5 was prepared successfully using sonochemistry method and shown high activity and stability in dry reforming of methane. XRD, BET, FESEM, TEM and EDAX-dot mapping techniques have been used for nanocatalyst characterization. XRD analysis confirmed the formation of MgO and NiO cubic phases. According to the FESEM micrographs, nanostructure grains with uniform surface size distribution have been observed in of the synthesized nanocatalyst. The TEM micrographs showed that ultrasound-assisted preparation method induced uniform morphology without agglomeration of particles. The activity of synthesized nanocatalyst could reach thermodynamic equilibrium conversions and H2/CO ratios.