Characterization of Nanostructured Nickel Aluminate Formation during Mechano-Chemical Recycling of Spent NiO/Al₂O₃ Catalyst

Abstract:

In this research, use of mechanical alloying method, as a new and effective route for the recycling of spent NiO/Al₂O₃ catalyst to nanostructured nickel aluminate spinel was investigated. Samples were characterized using different techniques such as X-ray Diffraction (XRD), Scanning Electron Microscopy (SEM) and Transmission Electron Microscopy (TEM). It was found that the formation of NiAl₂O₄ was started between 15 to 20 hours of milling and completed after 60 hours. The final particles had relatively spherical shape with the size range of 5-50 nm.

• Periodical: Advanced Materials Research (Volume 364)
• Pages: 186-190
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.364.186
• Online since: October 2011
• Authors: Karim Nazemi Mohammad, Saeed Sheibani, Fereshteh Rashchi, Victor Gonzalez De La Cruz, Alfonso Caballero Martínez
• Keywords: Mechano-Chemical, Nanostructured Spinel, Recycling, Spent Catalyst

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