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Title: Ultrasound assisted ambient temperature synthesis of ternary oxide AgMO{sub 2} (M=Fe, Ga)

Abstract

The application of ultrasound for the synthesis of ternary oxide AgMO{sub 2} (M=Fe, Ga) was investigated. Crystalline alpha-AgFeO{sub 2} was obtained from the alkaline solutions of silver and iron hydroxides by sonication for 40 minutes. alpha-AgFeO{sub 2} was found to absorb optical radiation in the 300-600 nm range as shown by diffuse reflectance spectroscopy. The Raman spectrum of alpha-AgFeO{sub 2} exhibited two bands at 345 and 638 cm{sup -1}. When beta-NaFeO{sub 2} was sonicated with aqueous silver nitrate solution for 60 minutes, beta-AgFeO{sub 2} possessing orthorhombic structure was obtained as the ion-exchanged product. The Raman spectrum of beta-AgFeO{sub 2} showed four strong bands at 295, 432, 630 and 690 cm{sup -1}. Sonication of beta-NaGaO{sub 2} with aqueous silver nitrate solution for 60 minutes resulted in olive green colored, alpha-AgGaO{sub 2}. The diffuse reflectance spectrum and the EDX analysis confirmed that the ion-exchange through sonication was complete. The Raman spectrum of alpha-AgGaO{sub 2} had weak bands at 471 and 650 cm{sup -1}. - Graphical abstract: The application of ultrasound in the formation of alpha and beta-forms of AgMO{sub 2} (M=Fe, Ga) has been demonstrated.

Authors:
 [1];  [1]
  1. Materials Chemistry Group, Department of Chemistry, University of Delhi, Delhi 110 007 (India)
Publication Date:
OSTI Identifier:
21370411
Resource Type:
Journal Article
Journal Name:
Journal of Solid State Chemistry
Additional Journal Information:
Journal Volume: 182; Journal Issue: 6; Other Information: DOI: 10.1016/j.jssc.2009.01.043; PII: S0022-4596(09)00043-7; Copyright (c) 2009 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Journal ID: ISSN 0022-4596
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; AMBIENT TEMPERATURE; GALLIUM OXIDES; ION EXCHANGE; IRON HYDROXIDES; IRON OXIDES; ORTHORHOMBIC LATTICES; RAMAN SPECTRA; SILVER HYDROXIDES; SILVER NITRATES; SILVER OXIDES; SOLUTIONS; SYNTHESIS; CHALCOGENIDES; CRYSTAL LATTICES; CRYSTAL STRUCTURE; DISPERSIONS; GALLIUM COMPOUNDS; HOMOGENEOUS MIXTURES; HYDROGEN COMPOUNDS; HYDROXIDES; IRON COMPOUNDS; MIXTURES; NITRATES; NITROGEN COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; SILVER COMPOUNDS; SPECTRA; TRANSITION ELEMENT COMPOUNDS

Citation Formats

Nagarajan, R, and Tomar, Nobel. Ultrasound assisted ambient temperature synthesis of ternary oxide AgMO{sub 2} (M=Fe, Ga). United States: N. p., 2009. Web. doi:10.1016/j.jssc.2009.01.043.
Nagarajan, R, & Tomar, Nobel. Ultrasound assisted ambient temperature synthesis of ternary oxide AgMO{sub 2} (M=Fe, Ga). United States. https://doi.org/10.1016/j.jssc.2009.01.043
Nagarajan, R, and Tomar, Nobel. 2009. "Ultrasound assisted ambient temperature synthesis of ternary oxide AgMO{sub 2} (M=Fe, Ga)". United States. https://doi.org/10.1016/j.jssc.2009.01.043.
@article{osti_21370411,
title = {Ultrasound assisted ambient temperature synthesis of ternary oxide AgMO{sub 2} (M=Fe, Ga)},
author = {Nagarajan, R and Tomar, Nobel},
abstractNote = {The application of ultrasound for the synthesis of ternary oxide AgMO{sub 2} (M=Fe, Ga) was investigated. Crystalline alpha-AgFeO{sub 2} was obtained from the alkaline solutions of silver and iron hydroxides by sonication for 40 minutes. alpha-AgFeO{sub 2} was found to absorb optical radiation in the 300-600 nm range as shown by diffuse reflectance spectroscopy. The Raman spectrum of alpha-AgFeO{sub 2} exhibited two bands at 345 and 638 cm{sup -1}. When beta-NaFeO{sub 2} was sonicated with aqueous silver nitrate solution for 60 minutes, beta-AgFeO{sub 2} possessing orthorhombic structure was obtained as the ion-exchanged product. The Raman spectrum of beta-AgFeO{sub 2} showed four strong bands at 295, 432, 630 and 690 cm{sup -1}. Sonication of beta-NaGaO{sub 2} with aqueous silver nitrate solution for 60 minutes resulted in olive green colored, alpha-AgGaO{sub 2}. The diffuse reflectance spectrum and the EDX analysis confirmed that the ion-exchange through sonication was complete. The Raman spectrum of alpha-AgGaO{sub 2} had weak bands at 471 and 650 cm{sup -1}. - Graphical abstract: The application of ultrasound in the formation of alpha and beta-forms of AgMO{sub 2} (M=Fe, Ga) has been demonstrated.},
doi = {10.1016/j.jssc.2009.01.043},
url = {https://www.osti.gov/biblio/21370411}, journal = {Journal of Solid State Chemistry},
issn = {0022-4596},
number = 6,
volume = 182,
place = {United States},
year = {Mon Jun 15 00:00:00 EDT 2009},
month = {Mon Jun 15 00:00:00 EDT 2009}
}