Please use this identifier to cite or link to this item: http://nopr.niscair.res.in/handle/123456789/6246
Title: Preparation, characterization and conductivity studies of NaAlSb(PO4)3 and HAlSb(PO4)3
Authors: Anantharamulu, N
Velchuri, Radha
Sarojini, T
Madhavi, K
Prasad, G
Vithal, M
Issue Date: Oct-2009
Publisher: CSIR
Abstract: NaAlSb(PO4)3 and HAlSb(PO4)3 are prepared by solid-state and metathesis reactions respectively. They are characterized by powder XRD, IR and solid-state 31P-MAS NMR spectroscopy. These two compounds crystallize in the hexagonal NASICON structure with the space group of RC. Their infrared spectra exhibit characteristic vibrational bands of PO4 tetrahedra. The 31P-MAS NMR spectra of NaAlSb(PO4)3 and HAlSb(PO4)3 are characterized by a symmetric single peak around 9 ppm suggesting only one type of phosphorous in the hexagonal lattice. The activation energies for conduction and relaxation are more for NaAlSb(PO4)3 compared to the values of HAlSb(PO4)3. The isothermal conductivity of NaAlSb(PO4)3 i s higher than the conductivity of HAlSb(PO4)3. The imaginary parts of the impedance, (Z'') and electric modulus (M'') against log frequency show single peaks in both Z''  and M'' spectra.
Page(s): 347-354
URI: http://hdl.handle.net/123456789/6246
ISSN: 0975-1017 (Online); 0971-4588 (Print)
Appears in Collections:IJEMS Vol.16(5) [October 2009]

Files in This Item:
File Description SizeFormat 
IJEMS 16(5) 347-354.pdf296.89 kBAdobe PDFView/Open


Items in NOPR are protected by copyright, with all rights reserved, unless otherwise indicated.