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Title: One step synthesis of monoclinic VO{sub 2} (B) bundles of nanorods: Cathode for Li ion battery

Abstract

One of the metastable phases of vanadium dioxide, VO{sub 2}(B) bundles of nanorods and microspheres have been synthesized through a simple hydrothermal method by dispersing V{sub 2}O{sub 5} in aqueous quinol. The obtained products were characterized by X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM) and electrochemical discharge-charge test for lithium battery. It was found that the morphologies of the obtained VO{sub 2}(B) can be tuned by manipulating the relative amount of quinol. The electrochemical test found that the bundles of nanorods exhibit an initial discharge capacity of 171 mAh g{sup -1} and its almost stabilized capacity was reached to 108 mAh g{sup -1} after 47 cycles at a current density of 0.1 mA g{sup -1}. The formation mechanism of the VO{sub 2}(B) bundles of nanorods and microspheres was also discussed. - Highlights: Black-Right-Pointing-Pointer VO{sub 2}(B) bundles of nanorods and microspheres were prepared by hydrothermal route at 180 Degree-Sign C for 1 day. Black-Right-Pointing-Pointer In this method for the synthesis of VO{sub 2}(B), we are the first to use quinol as a reducing agent. Black-Right-Pointing-Pointer Morphologies of the obtained VO{sub 2}(B) can be tuned by manipulating the relative amount of quinol. Black-Right-Pointing-Pointer VO{sub 2}(B) exhibits anmore » initial capacity of 171 mAh g{sup -1} and reached to 108 mAh g{sup -1} after 47 cycles. Black-Right-Pointing-Pointer The formation mechanism of the VO{sub 2}(B) bundles of nanorods and microspheres is also discussed.« less

Authors:
 [1];  [2]
  1. Laboratory of Molecular Catalysis, Institute of Chemistry, UFRGS, Porto Alegre (Brazil)
  2. Department of Materials Engineering, Indian Institute of Science, Bangalore-560012 (India)
Publication Date:
OSTI Identifier:
22066456
Resource Type:
Journal Article
Journal Name:
Materials Characterization
Additional Journal Information:
Journal Volume: 68; Journal Issue: Complete; Other Information: Copyright (c) 2012 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1044-5803
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 77 NANOSCIENCE AND NANOTECHNOLOGY; ABSORPTION SPECTROSCOPY; CATHODES; CURRENT DENSITY; ELECTROCHEMISTRY; FOURIER TRANSFORMATION; HYDROTHERMAL SYNTHESIS; INFRARED SPECTRA; LITHIUM; MICROSPHERES; MONOCLINIC LATTICES; MORPHOLOGY; NANOSTRUCTURES; REDUCING AGENTS; SCANNING ELECTRON MICROSCOPY; VANADIUM OXIDES; X-RAY DIFFRACTION

Citation Formats

Ganganagappa, Nagaraju, E-mail: nagarajugn@rediffmail.com, and Siddaramanna, Ashoka. One step synthesis of monoclinic VO{sub 2} (B) bundles of nanorods: Cathode for Li ion battery. United States: N. p., 2012. Web. doi:10.1016/J.MATCHAR.2012.03.010.
Ganganagappa, Nagaraju, E-mail: nagarajugn@rediffmail.com, & Siddaramanna, Ashoka. One step synthesis of monoclinic VO{sub 2} (B) bundles of nanorods: Cathode for Li ion battery. United States. doi:10.1016/J.MATCHAR.2012.03.010.
Ganganagappa, Nagaraju, E-mail: nagarajugn@rediffmail.com, and Siddaramanna, Ashoka. Fri . "One step synthesis of monoclinic VO{sub 2} (B) bundles of nanorods: Cathode for Li ion battery". United States. doi:10.1016/J.MATCHAR.2012.03.010.
@article{osti_22066456,
title = {One step synthesis of monoclinic VO{sub 2} (B) bundles of nanorods: Cathode for Li ion battery},
author = {Ganganagappa, Nagaraju, E-mail: nagarajugn@rediffmail.com and Siddaramanna, Ashoka},
abstractNote = {One of the metastable phases of vanadium dioxide, VO{sub 2}(B) bundles of nanorods and microspheres have been synthesized through a simple hydrothermal method by dispersing V{sub 2}O{sub 5} in aqueous quinol. The obtained products were characterized by X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM) and electrochemical discharge-charge test for lithium battery. It was found that the morphologies of the obtained VO{sub 2}(B) can be tuned by manipulating the relative amount of quinol. The electrochemical test found that the bundles of nanorods exhibit an initial discharge capacity of 171 mAh g{sup -1} and its almost stabilized capacity was reached to 108 mAh g{sup -1} after 47 cycles at a current density of 0.1 mA g{sup -1}. The formation mechanism of the VO{sub 2}(B) bundles of nanorods and microspheres was also discussed. - Highlights: Black-Right-Pointing-Pointer VO{sub 2}(B) bundles of nanorods and microspheres were prepared by hydrothermal route at 180 Degree-Sign C for 1 day. Black-Right-Pointing-Pointer In this method for the synthesis of VO{sub 2}(B), we are the first to use quinol as a reducing agent. Black-Right-Pointing-Pointer Morphologies of the obtained VO{sub 2}(B) can be tuned by manipulating the relative amount of quinol. Black-Right-Pointing-Pointer VO{sub 2}(B) exhibits an initial capacity of 171 mAh g{sup -1} and reached to 108 mAh g{sup -1} after 47 cycles. Black-Right-Pointing-Pointer The formation mechanism of the VO{sub 2}(B) bundles of nanorods and microspheres is also discussed.},
doi = {10.1016/J.MATCHAR.2012.03.010},
journal = {Materials Characterization},
issn = {1044-5803},
number = Complete,
volume = 68,
place = {United States},
year = {2012},
month = {6}
}