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Author: search.filters.author.Baitahe, RattanaiSubject: search.filters.subject.Synthesis

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    Synthesis and characterization of nanocrystalline manganese pyrophosphate Mn2P2O7
    (2009-10-31)
    Boonchom, Banjong
    ;
    Baitahe, Rattanai
    Mn<inf>2</inf>P<inf>2</inf>O<inf>7</inf> polyhedral particles were synthesized by simple and cost-effective method using manganese nitrate hydrate and phosphoric acid in the presence of nitric acid with further calcinations at the temperature of 800 °C. The crystallite size obtained from X-ray line broadening is 31 ± 13 nm for the Mn<inf>2</inf>P<inf>2</inf>O<inf>7</inf>. The X-ray diffraction and SEM results indicated that the synthesized nanoparticles have only the structure without the presence of any other phase impurities. The FT-IR and FT-Raman spectra show characteristic bands of the P<inf>2</inf>O<inf>7</inf><sup>4-</sup> anion. The UV-Vis-NIR spectrum confirms the octahedral coordination of Mn<sup>2+</sup> ion. © 2009 Elsevier B.V. All rights reserved.