Synthesis and characterization of V2O3 nanorods

Alexander C. Santulli; Wenqian Xu; John B. Parise; Liusuo Wu; M.C. Aronson; Fen Zhang; Chang-Yong Nam; Charles T. Black; Amanda L. Tiano; Stanislaus S. Wong

doi:10.1039/B822902C

Synthesis and characterization of V₂O₃ nanorods†

Alexander C. Santulli,^a Wenqian Xu,^b John B. Parise,^ab Liusuo Wu,^c M.C. Aronson,^cd Fen Zhang,^a Chang-Yong Nam,^e Charles T. Black,^e Amanda L. Tiano^a and Stanislaus S. Wong*^ac

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^a Department of Chemistry, State University of New York at Stony Brook, Stony Brook, NY
E-mail: sswong@notes.cc.sunysb.edu, sswong@bnl.gov
Tel: +1 (1)631 632 1703; +1 (1)631 344 3178

^b Department of Geosciences, State University of New York at Stony Brook, Stony Brook, NY

^c Condensed Matter Physics and Materials Sciences Department, Brookhaven National Laboratory, Upton, NY

^d Department of Physics and Astronomy, State University of New York at Stony Brook, Stony Brook, NY

^e Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, NY

Abstract

In this work, VO₂ nanorods have been initially generated as reactive nanoscale precursors to their subsequent conversion to large quantities of highly crystalline V₂O₃ with no detectable impurities. Structural changes in VO₂, associated with the metallic-to-insulating transition from the monoclinic form to the rutile form, have been investigated and confirmed using X-ray diffraction and synchrotron data, showing that the structural transition is reversible and occurs at around 63 °C. When this VO₂ one-dimensional sample was subsequently heated to 800 °C in a reducing atmosphere, it was successfully transformed into V₂O₃ with effective retention of its nanorod morphology. We have also collected magnetic and transport data on these systems that are comparable to bulk behavior and consistent with trends observed in previous experiments.

This article is part of the themed collection: Chemistry and physics of metal oxide nanostructures

Physical Chemistry Chemical Physics

Synthesis and characterization of V₂O₃ nanorods†

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Synthesis and characterization of V₂O₃ nanorods

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