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Synthesis of ZnO-CuO Nanocomposite Aerogels by the Sol-Gel Route
Joint Authors
Allaf, Rula M.
Hope-Weeks, Louisa J.
Source
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-11-20
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
The epoxide addition sol-gel method has been utilized to synthesize porous zinc-copper composite aerogels in the zinc-to-copper molar ratios of 50 : 50 to 90 : 10.
A two-step mixing approach has been employed to produce aerogels composed of nano- to micrometer sized particles.
The aerogels were characterized by ultrahigh resolution scanning electron microscopy, transmission electron microscopy, and powder X-ray diffraction.
The as-synthesized aerogels had a thin flake- or petal-like microstructure comprised of clustered flakes on two size scales; they were identified as being crystalline with the crystalline species identified as copper nitrate hydroxide, zinc hydroxide chloride hydrate, and zinc hydroxide nitrate hydrate.
Annealing of the aerogel materials at a relatively low temperature (400°C) resulted in a complete phase transition of the material to give highly crystalline ZnO-CuO aerogels; the aerogels consisted of networked nanoparticles in the ~25–550 nm size range with an average crystallite size of ~3 nm and average crystallinity of 98%.
ZnO-CuO aerogels are of particular interest due to their particular catalytic and sensing properties.
This work emphasizes the versatility of this sol-gel route in synthesizing aerogels; this method offers a possible route for the fabrication of aerogels of different metal oxides and their composites.
American Psychological Association (APA)
Allaf, Rula M.& Hope-Weeks, Louisa J.. 2014. Synthesis of ZnO-CuO Nanocomposite Aerogels by the Sol-Gel Route. Journal of Nanomaterials،Vol. 2014, no. 2014, pp.1-9.
https://search.emarefa.net/detail/BIM-1041583
Modern Language Association (MLA)
Allaf, Rula M.& Hope-Weeks, Louisa J.. Synthesis of ZnO-CuO Nanocomposite Aerogels by the Sol-Gel Route. Journal of Nanomaterials No. 2014 (2014), pp.1-9.
https://search.emarefa.net/detail/BIM-1041583
American Medical Association (AMA)
Allaf, Rula M.& Hope-Weeks, Louisa J.. Synthesis of ZnO-CuO Nanocomposite Aerogels by the Sol-Gel Route. Journal of Nanomaterials. 2014. Vol. 2014, no. 2014, pp.1-9.
https://search.emarefa.net/detail/BIM-1041583
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1041583