Abstract
The present work aimed to prepare Ni-Mo particles distributed within the MgO matrix. With this purpose in mind, a ternary Ni-Mo-Mg oxide system was synthesized by a sol-gel approach. The samples were studied by low-temperature nitrogen adsorption, X-ray diffraction analysis, and transmission electron microscopy equipped with energy dispersive X-ray analysis. Both the nickel and molybdenum species in the prepared samples were characterized by a fine and uniform distribution. The diffraction pattern of the ternary system was predominantly represented by the MgO reflections. The catalytic activity of the samples was tested in the decomposition of 1,2-dichloroethane used as a representative of the chlorinated organic wastes. The nanostructured carbon filaments resulting from the decomposition of the halogenated substrate were found to be characterized by a narrow diameter distribution, according to the transmission electron microscopy data, thus confirming the fine distribution of the active Ni-Mo particles. The results obviously show the advantages of the sol-gel technique for obtaining efficient catalysts.
Highlights
Nowadays, nickel-molybdenum oxide systems are widely applied in a variety of technological processes.Being supported on oxides with a developed porous structure, they play a major role in hydrodenitrogenation of different nitrogen-containing organic compounds [1,2] and hydrodesulfurization of thiophenes [3,4].In addition to the mentioned processes, the nickel-molybdenum catalysts exhibit the activity in steam reforming and oxidative conversion of hydrocarbons [5,6,7,8]
The Ni-Mo oxide systems are attractive as catalysts for the preparation of various carbon materials, including carbon nanotubes [10,11,12,13,14,15,16,17] and nanofibers [18,19], via catalytic chemical vapor deposition or combustion
The addition of molybdenum contrary increased the yield of carbon products and their specific surface area compared with pure nickel catalysts [20,21]
Summary
Nickel-molybdenum oxide systems are widely applied in a variety of technological processes.Being supported on oxides with a developed porous structure, they play a major role in hydrodenitrogenation of different nitrogen-containing organic compounds [1,2] and hydrodesulfurization of thiophenes [3,4].In addition to the mentioned processes, the nickel-molybdenum catalysts exhibit the activity in steam reforming and oxidative conversion of hydrocarbons [5,6,7,8]. The Ni-Mo oxide systems are attractive as catalysts for the preparation of various carbon materials, including carbon nanotubes [10,11,12,13,14,15,16,17] and nanofibers [18,19], via catalytic chemical vapor deposition or combustion. In this case, the addition of molybdenum contrary increased the yield of carbon products and their specific surface area compared with pure nickel catalysts [20,21]
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
