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Hydrothermal Synthesis and Characterization of Mn-Doped VO2 Nanowires

Published online by Cambridge University Press:  24 January 2019

G. Long ,
David Matatov ,
Acher Suissa ,
Elmustapha Feddi ,
M. EL Yadri ,
Kawtar Feddi  and
M. Sadoqi
G. Long*
Affiliation:
Department of Physics, St. John’s University, Queens, 11439, USA
David Matatov
Affiliation:
Department of Physics, St. John’s University, Queens, 11439, USA
Acher Suissa
Affiliation:
Department of Physics, St. John’s University, Queens, 11439, USA
Elmustapha Feddi
Affiliation:
LaMCScI, Group of Optoelectronic of Semiconductors and Nanomaterials, ENSET, Mohammed V University in Rabat, 10000, Morocco
M. EL Yadri
Affiliation:
LaMCScI, Group of Optoelectronic of Semiconductors and Nanomaterials, ENSET, Mohammed V University in Rabat, 10000, Morocco
Kawtar Feddi
Affiliation:
REAM Laboratory, International University of Rabat, 10000, Morocco
M. Sadoqi
Affiliation:
Department of Physics, St. John’s University, Queens, 11439, USA Department of Pharmaceutical Sciences, St. John’s University, Queens, 11439, USA
*
*(Email: longg@stjohns.edu)
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Abstract

Monoclinic VO2 is a known polymorph of vanadium dioxide that has received much attention due to its oxidative capabilities, geometric configuration, and promising applications in functional windows. VO2 can usually be obtained through a hydrothermal method under high pressure. In this work we report a synthesis of VO2 doped with Manganese using a rapid single-step hydrothermal process with V2O5, manganese (II) acetate and citric acid as precursors. Different syntheses were carried out in which the concentration of V2O5 and citric acid remained constant whereas the concentration of manganese (II) acetate was varied. The reactants underwent a stirring phase for 30 minutes before being loaded into a hydrothermal reactor for 2.5 hours at 200°C. The resultant was washed three times to remove the residual precursors. Imaging and spectroscopy characterizations such as TEM, SEM and UV-VIS-NIR have been performed on different doping concentration and the results display a dependence on doping concentrations.

Keywords

hydrothermalnanostructuremetal-insulator transition
Type
Articles
Information
MRS Advances , Volume 4 , Issue 14: Energy-Transfer, Storage and Conversion , 2019 , pp. 829 - 836
Copyright
Copyright © Materials Research Society 2019 

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