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ISSN: 2090-4568

Journal of Advanced Chemical Engineering
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Research Article

Template-Assisted Synthesis of Metal Oxide Hollow Spheres Utilizing Glucose Derived-Carbonaceous Spheres As Sacrificial Templates

Haitham Mohammad Abdelaal 1* and Bernd Harbrecht2

1Ceramics Department, The National Research Centre, Al-Buhouth St. Dokki, Cairo, Egypt

2Department of Chemistry and Centre of Materials Science Philipps University, 35032 Marburg, Germany

*Corresponding Author:
Haitham Mohammad Abdelaal
Ceramics Department,The National Research Centre
Al-Buhouth St. Dokki
Cairo P.O. Box 12622,Egypt
Tel: 002-010-1674-6660
E-mail: [email protected]

Received Date: November 25, 2014; Accepted Date: December 23, 2014; Published Date: December 31, 2014

Citation: Abdelaal HM, Harbrecht B (2014) Template-Assisted Synthesis of Metal Oxide Hollow Spheres Utilizing Glucose Derived-Carbonaceous Spheres As Sacrificial Templates. J Adv Chem Eng 5:116. doi:10.4172/2090-4568.1000116

Copyright: © 2014 Abdelaal HM, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Abstract

A series of metal oxides hollow spheres (Cr2 O3 , α-Fe2 O3 , Co3 O4 , NiO and ZnO) have been fabricated using the glucose derived-carbonaceous spheres as sacrificial templates and the metal chlorides as precursors for the metal oxides in a sacrificial templating process. Heating of an aqueous solution of the metal chloride and glucose in an autoclave at 180 ºC affords - as indicated by transmission electron microscopy (TEM) - a nanospherical composite consisting of a metal precursor shell sheathing a carbonaceous core. Consequently, hollow crystalline oxides spheres are obtained by removal of the carbonaceous cores through calcination in air. Correlations between the particle size and the various synthesis conditions such as glucose concentration, the molar concentration ratio between glucose and metal chloride, temperature, reaction time and the addition of acetic acid as a catalyst are uncovered. The obtained metal oxides hollow spheres were characterized by means of scanning electron microscopy (SEM), transmission electron microscopy (TEM), x-ray powder diffraction (XRD), infrared spectroscopy (IR), and nitrogen adsorption/desorption isotherms (BET).

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