期刊
ENERGY CONVERSION AND MANAGEMENT
卷 97, 期 -, 页码 273-281出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.enconman.2015.03.064
关键词
Impregnation; Ultrasound; Ni-Co/Al2O3-MgO; CH4/CO2 reforming; Synthesis gas
资金
- Sahand University of Technology
- Iran Nanotechnology Initiative Council
The Ni-Co/Al2O3-MgO nanocatalysts with different Al/Mg ratios were synthesized via sonochemistry method and applied in CH4/CO2 reforming. In order to investigate the effect of ultrasonic irradiation, Ni-Co/Al2O3-MgO nanocatalyst with Al2O3/MgO = 1.5 was also prepared via impregnation method. All samples were characterized by XRD, FESEM, PSD, BET and FTIR techniques. However, it should be noted that the sonochemistry method results in a better dispersion, smaller particle size, higher specific area and uniform morphology as well as better catalytic performance in comparison with the impregnation. Although among the prepared samples via sonochemistry, the Ni-Co/Al2O3-MgO nanocatalyst with Al2O3/MgO = 5 showed higher dispersion, better morphology, smaller crystal size, superior active phase distribution and higher specific surface area. Due to the better textural properties, the Ni-Co/Al2O3-MgO nanocatalyst with Al2O3/MgO = 5 shows a good catalytic performance, consequently. (C) 2015 Elsevier Ltd. All rights reserved.
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