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Ovalbumin mediated synthesis of Mn3O4
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2009 (English)In: Polyhedron, ISSN 0277-5387, E-ISSN 1873-3719, Vol. 28, no 11, 2119-2122 p.Article in journal (Refereed) Published
Abstract [en]

By using Mn2+ and Mn3+ salts, and freshly extracted ovalbumin. Mn3O4 nanocrystals have been synthesized successfully. The X-ray diffraction results indicated that the synthesized nanoparticles have only the spinel structure without the presence of any other phase impurities. As the ovalbumin-water mixture was highly basic, the process did not require any use of base to increase the pH where hydrolysis took place. A gel formed where water soluble ovalbumin proteins served as a perfect matrix for entrapment of metal ions (Mn2+ and Mn3+). Upon heat treatment, the dried gel precursor decomposed into nanocrystalline Mn3O4. The discrepancy between the crystallite size from XRD and particle size SEM analysis reveals polycrystalline nature of the synthesized particles with this route. EPR analysis of Mn3O4 shows a narrow and symmetric line indicating the absence of hyperfine splitting.

Place, publisher, year, edition, pages
2009. Vol. 28, no 11, 2119-2122 p.
Keyword [en]
Sol-gel processes, Nanocomposites, Spinels, Functional applications, Ovalbumin, manganese oxides, egg-white, nanoparticles, oxidation, reduction, resonance, nanowires, behavior, route
Identifiers
URN: urn:nbn:se:kth:diva-18608DOI: 10.1016/j.poly.2009.03.026ISI: 000268051700004Scopus ID: 2-s2.0-66949135307OAI: oai:DiVA.org:kth-18608DiVA: diva2:336655
Note
QC 20100525Available from: 2010-08-05 Created: 2010-08-05 Last updated: 2017-12-12Bibliographically approved

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Toprak, Muhammet S.

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