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Journal of Nanomaterials
Volume 2017 (2017), Article ID 9464209, 8 pages
Research Article

A Simulation Study for Trimetallic Nanosized Alloy (Ni, Cu, and Ag) in Hydrogenation of Organic Compounds: A Case Study of “Nitrophenols”

1Faculty of Science, Department of Chemistry, King Abdulaziz University, Jeddah, Saudi Arabia
2National Research Centre, Physical Chemistry Department, Dokki, Cairo, Egypt

Correspondence should be addressed to Islam Hamdy Abd El Maksod

Received 4 December 2016; Revised 5 January 2017; Accepted 16 February 2017; Published 13 March 2017

Academic Editor: Mohamed Bououdina

Copyright © 2017 Salem M. Bawaked et al. 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.


Trimetallic system (Ni, Cu, and Ag) supported on alumina was utilized for hydrogenation of nitrophenols. The catalytic active centers for hydrogenation were attributed only to the presence of Ni. However, the presence of bi- or trimetallic systems improves the catalytic activity via extra synergism. The catalytic activity was measured as the time for reaching 100% conversion. The function of synergism was fitted for both bimetallic systems (Ni:Ag; Ni:Cu) individually. Subsequently, three-dimensional function was fitted for trimetallic system (Ni:Cu:Ag) based on the linear combination of data for individual bimetallic system. After a complex calculation areal function was evaluated. An Excel program was written to simply evaluate the catalytic activity of trimetallic system with high accuracy. Characterization of catalysts was performed using EPR and pulsed chemisorption by hydrogen. These characterizations of samples enable us to evaluate particle size, metallic surface area, and degree of dispersion. These values were successfully correlated with the synergism function. The program written then could be capable of predicting these values for any trimetallic system.