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The Effect of Stirring on the Morphology of Birnessite Nanoparticles
Joint Authors
Joo, Sang Woo
Qian, Shizhi
Villalobos, Mario
Bhowmik, Pradip K.
Moriuchi, Shingo
Cheney, Marcos A.
Source
Issue
Vol. 2008, Issue 2008 (31 Dec. 2008), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2008-06-04
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
The effect of mechanical stirring on the morphology of hexagonal layer-structure birnessite nanoparticles produced from decomposition of KMnO4 in dilute aqueous H2SO4 is investigated, with characterization by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), high-resolution transmission electron microscopy (HRTEM), thermogravimetric analysis (TGA), and N2 adsorption (BET).
Mechanical stirring during an initial stage of synthesis is shown to produce black birnessite containing nanofibers, whereas granular particulates of brown birnessite are produced without stirring.
This is the first reduction synthesis of black birnessite nanoparticles with dendritic morphology without any use of organic reductant, and suggests that a particular morphology can arise from structural preferences of Mn in acidic conditions rather than particular organic reactants.
These results enlighten the possibility of synthesizing nanoparticles with controlled size and morphology.
American Psychological Association (APA)
Cheney, Marcos A.& Bhowmik, Pradip K.& Moriuchi, Shingo& Villalobos, Mario& Qian, Shizhi& Joo, Sang Woo. 2008. The Effect of Stirring on the Morphology of Birnessite Nanoparticles. Journal of Nanomaterials،Vol. 2008, no. 2008, pp.1-9.
https://search.emarefa.net/detail/BIM-988087
Modern Language Association (MLA)
Cheney, Marcos A.…[et al.]. The Effect of Stirring on the Morphology of Birnessite Nanoparticles. Journal of Nanomaterials No. 2008 (2008), pp.1-9.
https://search.emarefa.net/detail/BIM-988087
American Medical Association (AMA)
Cheney, Marcos A.& Bhowmik, Pradip K.& Moriuchi, Shingo& Villalobos, Mario& Qian, Shizhi& Joo, Sang Woo. The Effect of Stirring on the Morphology of Birnessite Nanoparticles. Journal of Nanomaterials. 2008. Vol. 2008, no. 2008, pp.1-9.
https://search.emarefa.net/detail/BIM-988087
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-988087