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Title: Phonon properties of nanosized MnWO{sub 4} with different size and morphology

Abstract

Highly hierarchical barlike and flowerlike MnWO{sub 4} microcrystals have been synthesized for the first time by a hydrothermal method, where ethanolamine (EA) and cetyltrimethylamonnium bromide (CTAB) play important roles in directing growth and self-assembly of these structures. The possible formation process has been proposed. In addition, platelike nanosized MnWO{sub 4} was also synthesized by annealing of a precursor obtained by coprecipitation method. The obtained samples were characterized by XRD, SEM, TEM, Raman and IR methods. Raman spectra showed relatively weak dependence on particle size and morphology of the particles. In contrast to this behavior, IR-active bands showed pronounced shifts and changes in relative intensities on particle size and the morphology. Origin of this behavior is discussed. - Graphical Abstract: SEM images of MnWO{sub 4} particles prepared by hydrothermal process at 150 deg. C (left panel) and 200 deg. C (right panel). Highlights: > Hydrothermal synthesis with ethanolamine enables growth of hierarchical nanosized MnWO{sub 4} particles. > Annealing of a precursor obtained by coprecipitation method enables growth of platelike MnWO{sub 4} nanoparticles. > Raman and IR spectra of MnWO{sub 4} nanoparticles depend on both size and morphology of the nanoparticles. > We discuss origin of this behavior.

Authors:
 [1]; ; ; ;  [1];  [1];  [2]
  1. Institute of Low Temperature and Structure Research, Polish Academy of Sciences, P.O. Box 1410, 50-950 WrocLaw 2 (Poland)
  2. (Poland)
Publication Date:
OSTI Identifier:
21580249
Resource Type:
Journal Article
Journal Name:
Journal of Solid State Chemistry
Additional Journal Information:
Journal Volume: 184; Journal Issue: 9; Other Information: DOI: 10.1016/j.jssc.2011.07.023; PII: S0022-4596(11)00401-4; Copyright (c) 2011 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Journal ID: ISSN 0022-4596
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; CRYSTALS; HYDROTHERMAL SYNTHESIS; INFRARED SPECTRA; MANGANESE TUNGSTATES; MORPHOLOGY; NANOSTRUCTURES; PARTICLE SIZE; PARTICLES; PHONONS; RAMAN SPECTRA; SCANNING ELECTRON MICROSCOPY; TRANSMISSION ELECTRON MICROSCOPY; X-RAY DIFFRACTION; COHERENT SCATTERING; DIFFRACTION; ELECTRON MICROSCOPY; MANGANESE COMPOUNDS; MICROSCOPY; OXYGEN COMPOUNDS; QUASI PARTICLES; REFRACTORY METAL COMPOUNDS; SCATTERING; SIZE; SPECTRA; SYNTHESIS; TRANSITION ELEMENT COMPOUNDS; TUNGSTATES; TUNGSTEN COMPOUNDS

Citation Formats

Maczka, MirosLaw, E-mail: m.maczka@int.pan.wroc.pl, Ptak, Maciej, Kurnatowska, Michalina, Kepinski, Leszek, Tomaszewski, PaweL, Hanuza, Jerzy, and Department of Bioorganic Chemistry, Faculty of Industry and Economics, University of Economics, ul. Komandorska 118/120, 53-345 WrocLaw. Phonon properties of nanosized MnWO{sub 4} with different size and morphology. United States: N. p., 2011. Web. doi:10.1016/j.jssc.2011.07.023.
Maczka, MirosLaw, E-mail: m.maczka@int.pan.wroc.pl, Ptak, Maciej, Kurnatowska, Michalina, Kepinski, Leszek, Tomaszewski, PaweL, Hanuza, Jerzy, & Department of Bioorganic Chemistry, Faculty of Industry and Economics, University of Economics, ul. Komandorska 118/120, 53-345 WrocLaw. Phonon properties of nanosized MnWO{sub 4} with different size and morphology. United States. doi:10.1016/j.jssc.2011.07.023.
Maczka, MirosLaw, E-mail: m.maczka@int.pan.wroc.pl, Ptak, Maciej, Kurnatowska, Michalina, Kepinski, Leszek, Tomaszewski, PaweL, Hanuza, Jerzy, and Department of Bioorganic Chemistry, Faculty of Industry and Economics, University of Economics, ul. Komandorska 118/120, 53-345 WrocLaw. Thu . "Phonon properties of nanosized MnWO{sub 4} with different size and morphology". United States. doi:10.1016/j.jssc.2011.07.023.
@article{osti_21580249,
title = {Phonon properties of nanosized MnWO{sub 4} with different size and morphology},
author = {Maczka, MirosLaw, E-mail: m.maczka@int.pan.wroc.pl and Ptak, Maciej and Kurnatowska, Michalina and Kepinski, Leszek and Tomaszewski, PaweL and Hanuza, Jerzy and Department of Bioorganic Chemistry, Faculty of Industry and Economics, University of Economics, ul. Komandorska 118/120, 53-345 WrocLaw},
abstractNote = {Highly hierarchical barlike and flowerlike MnWO{sub 4} microcrystals have been synthesized for the first time by a hydrothermal method, where ethanolamine (EA) and cetyltrimethylamonnium bromide (CTAB) play important roles in directing growth and self-assembly of these structures. The possible formation process has been proposed. In addition, platelike nanosized MnWO{sub 4} was also synthesized by annealing of a precursor obtained by coprecipitation method. The obtained samples were characterized by XRD, SEM, TEM, Raman and IR methods. Raman spectra showed relatively weak dependence on particle size and morphology of the particles. In contrast to this behavior, IR-active bands showed pronounced shifts and changes in relative intensities on particle size and the morphology. Origin of this behavior is discussed. - Graphical Abstract: SEM images of MnWO{sub 4} particles prepared by hydrothermal process at 150 deg. C (left panel) and 200 deg. C (right panel). Highlights: > Hydrothermal synthesis with ethanolamine enables growth of hierarchical nanosized MnWO{sub 4} particles. > Annealing of a precursor obtained by coprecipitation method enables growth of platelike MnWO{sub 4} nanoparticles. > Raman and IR spectra of MnWO{sub 4} nanoparticles depend on both size and morphology of the nanoparticles. > We discuss origin of this behavior.},
doi = {10.1016/j.jssc.2011.07.023},
journal = {Journal of Solid State Chemistry},
issn = {0022-4596},
number = 9,
volume = 184,
place = {United States},
year = {2011},
month = {9}
}