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Title: Role of fuel/oxidizer ratio on the synthesis conditions of Cu–Al{sub 2}O{sub 3} nanocomposite prepared through solution combustion synthesis

Abstract

Highlights: ► With increasing the fuel to oxidizer ratio synthesis products changed from CuO to Cu{sub 2}O. ► With increasing the fuel to oxidizer ratio the combustion temperature decreased. ► Maximum ratio that synthesis could occur was achieved. ► The stoichiometric ratio had the maximum combustion temperature. ► Solution with graphite had lower combustion temperature. -- Abstract: The role of fuel/oxidizer ratio in the synthesis conditions of Cu–Al{sub 2}O{sub 3} nanocomposite, which was prepared through solution combustion synthesis, method was investigated. For this purpose, copper and aluminum nitrates as well as urea were used as oxidizer and fuel, respectively. The fuel/oxidizer (F/O) ratios were selected from the range of 0.9–1.75. The products were analyzed using X-ray diffraction, SEM and TEM techniques. During the process the temperature was recorded as a function of time. The results showed that by increasing the F/O ratio up to the stoichiometric amount, the combustion temperature increases. Further increment of F/O ratio resulted in a decrease in the combustion temperature. Microscopic evaluations, using SEM and TEM, proved feasibility of the production of Cu–Al{sub 2}O{sub 3} through this method.

Authors:
 [1]; ; ;  [1]
  1. Department of Material Science and Engineering, Faculty of Engineering, Ferdowsi University of Mashhad, P.O. Box: 91775-1111, Mashhad (Iran, Islamic Republic of)
Publication Date:
OSTI Identifier:
22215609
Resource Type:
Journal Article
Journal Name:
Materials Research Bulletin
Additional Journal Information:
Journal Volume: 47; Journal Issue: 11; Other Information: Copyright (c) 2012 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0025-5408
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 77 NANOSCIENCE AND NANOTECHNOLOGY; COPPER OXIDES; EVALUATION; MICROSTRUCTURE; NANOSTRUCTURES; OXIDIZERS; SCANNING ELECTRON MICROSCOPY; SYNTHESIS; TIME DEPENDENCE; TRANSMISSION ELECTRON MICROSCOPY; X-RAY DIFFRACTION

Citation Formats

Nasiri, H., E-mail: h.nasiri85@yahoo.com, Bahrami Motlagh, E., Vahdati Khaki, J., and Zebarjad, S.M. Role of fuel/oxidizer ratio on the synthesis conditions of Cu–Al{sub 2}O{sub 3} nanocomposite prepared through solution combustion synthesis. United States: N. p., 2012. Web. doi:10.1016/J.MATERRESBULL.2012.06.041.
Nasiri, H., E-mail: h.nasiri85@yahoo.com, Bahrami Motlagh, E., Vahdati Khaki, J., & Zebarjad, S.M. Role of fuel/oxidizer ratio on the synthesis conditions of Cu–Al{sub 2}O{sub 3} nanocomposite prepared through solution combustion synthesis. United States. doi:10.1016/J.MATERRESBULL.2012.06.041.
Nasiri, H., E-mail: h.nasiri85@yahoo.com, Bahrami Motlagh, E., Vahdati Khaki, J., and Zebarjad, S.M. Thu . "Role of fuel/oxidizer ratio on the synthesis conditions of Cu–Al{sub 2}O{sub 3} nanocomposite prepared through solution combustion synthesis". United States. doi:10.1016/J.MATERRESBULL.2012.06.041.
@article{osti_22215609,
title = {Role of fuel/oxidizer ratio on the synthesis conditions of Cu–Al{sub 2}O{sub 3} nanocomposite prepared through solution combustion synthesis},
author = {Nasiri, H., E-mail: h.nasiri85@yahoo.com and Bahrami Motlagh, E. and Vahdati Khaki, J. and Zebarjad, S.M.},
abstractNote = {Highlights: ► With increasing the fuel to oxidizer ratio synthesis products changed from CuO to Cu{sub 2}O. ► With increasing the fuel to oxidizer ratio the combustion temperature decreased. ► Maximum ratio that synthesis could occur was achieved. ► The stoichiometric ratio had the maximum combustion temperature. ► Solution with graphite had lower combustion temperature. -- Abstract: The role of fuel/oxidizer ratio in the synthesis conditions of Cu–Al{sub 2}O{sub 3} nanocomposite, which was prepared through solution combustion synthesis, method was investigated. For this purpose, copper and aluminum nitrates as well as urea were used as oxidizer and fuel, respectively. The fuel/oxidizer (F/O) ratios were selected from the range of 0.9–1.75. The products were analyzed using X-ray diffraction, SEM and TEM techniques. During the process the temperature was recorded as a function of time. The results showed that by increasing the F/O ratio up to the stoichiometric amount, the combustion temperature increases. Further increment of F/O ratio resulted in a decrease in the combustion temperature. Microscopic evaluations, using SEM and TEM, proved feasibility of the production of Cu–Al{sub 2}O{sub 3} through this method.},
doi = {10.1016/J.MATERRESBULL.2012.06.041},
journal = {Materials Research Bulletin},
issn = {0025-5408},
number = 11,
volume = 47,
place = {United States},
year = {2012},
month = {11}
}