Electrochemical Behaviour of V2O5 Xerogel and V2O5 Xerogel/C Composite in an Aqueous LiNO3 and Mg(NO3)2 Solutions
I. Stojkovića, N. Cvjetićanina, S. Markovićb, M. Mitrićc and S. Mentusa
a University of Belgrade, Faculty of Physical Chemistry, Studentski Trg 12-16, 11158 Belgrade, Serbia
b Institute of Technical Sciences of the Serbian Academy of Sciences and Arts, Knez Mihailova 35/IV, 11001 Belgrade, Serbia
c The Vinča Institute, Condensed Matter Physics Laboratory, P.O. Box 522, 11001 Belgrade, Serbia
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We synthesized both the V2O5 xerogel and the composite V2O5 xerogel/C starting from the solution of V2O5 in hydrogen peroxide. After the characterization by XRD, thermal (TGA-DTA), SEM methods and by particle size analysis, the investigation of Li+ and Mg2+ intercalation/deintercalation reactions in an aqueous solutions of LiNO3 and Mg(NO3)2 were performed by cyclic voltammetry. The composite material V2O5 xerogel/C displayed relatively high intercalation capacity, amounting to 123 mA h g-1 and 107 mA h g-1, in lithium and magnesium salt solutions, respectively.
DOI: 10.12693/APhysPolA.117.837
PACS numbers: 82.47.Aa, 71.20.Tx, 82.45.Yz, 82.80.Fk, 65.40.gk