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V. REDNIC1, M. RADA1, S. RADA1, R. - C. SUCIU1,* , P. MARGINEAN1, Z. WU2, Z. JING2, N. ALDEA1
The Ni nanoclusters supported on Cr2O3 were prepared using coprecipitation method. The heat treatment at different temperatures: 350, 650, 750 and 900°C was applied. The obtained samples were analyzed by X-ray Diffraction (XRD) and X-ray Absorption Spectroscopy (XAS) in order to determine their global and local structure. The average particle size, the mean squares of the microstrain, the particle size distribution and microstrain functions of the supported Ni nanoclusters were determined by XRD method using Generalized Fermi Function for the X-ray line profiles approximation. The present study has pointed out a strong deformation of the local structure of the active metal, due to small particle size effects. The recrystallization effect induced during the heat treatment process was analysed..
Supported metal nanoclusters, XRD, XAS, Particle size, Local structure.
V. REDNIC, M. RADA, S. RADA, R. - C. SUCIU, P. MARGINEAN, Z. WU, Z. JING, N. ALDEA, Structural investigations of Ni nanoclusters supported on Cr2O3, Optoelectronics and Advanced Materials - Rapid Communications, 10, 11-12, November–December 2016, pp.941-944 (2016).
Submitted at: July 20, 2015
Accepted at: Nov. 25, 2016
Optoelectronics and Advanced Materials - Rapid Communications
(2023): 0.5 - 2023 Journal Citation Reports (Clarivate Analytics, 2024)
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