![]() The characterization of the properties of the catalysts is important for the design and manufacture industrial scale also for the optimization of industrial catalytic processes. The catalyic properties of the carbides are determined by their structural form, phases and metals contents in the materials. , determinate a certain properties of hydrotreating catalyst of sulfides metals, they also describe a specific property as the carbide materials for typical HDS reactions. , used molybdenum carbide for hydrogenation reactions of CO. Within this type of new materials, the most studied solids are molybdenum carbides, due to their similar activities to a commercial catalyst of NiMo/Al 2O 3 in hydrotreating reactions. These materials have high strength and catalytic activities, for example for use in hydrotreating processes. The research of new catalytic materials has attracted special interest in the preparation of ceramic composites, such as transition metal carbides with high surface areas. Characteristical phases of Ni-Mo Carbides were identified for their typical planes (111), (200) and (311) for Ni-Mo series and the plane (101) for the a Mo-C series. Ni-Mo catalyst model (MoC-75) structure was modeled by Carine Crystallography Software version 3.1 which was built based on its space group and atomic positions which were previous the results of XRD. The crystal size was determinated by Bragg’s law. The final catalysts were characterized by X-ray diffraction (XRD) in order to identify crystallographic phases present in the solids using DRXwinsoftware version 2.3. They were synthesized with a ratio of Mo from 10, 25, 50 to 75 wt%. In the present work, the crystallographic properties of unsupported Ni-Mo catalyst serie were carried out. Keywords: Catalysts carbides crystallography Ni-Mo Molybdenum Nickel Received Februrevised Maaccepted April 1, 2013 This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. 1Madero City Institute of Technology, Madero City, MexicoĢMexican Petroleum Institute, Molecular Engineering Program, Mexico City, MexicoĮmail: © 2013 Adriana Isabel Reyes de la Torre et al. ![]()
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