Direct Synthesis of Thermochromic VO2 through Hydrothermal Reaction

David Alie, Lynn Gedvilas, Zhiwei Wang, Robert Tenent, Chaiwat Engtrakul, Yanfa Yan, Sean E. Shaheen, Anne C. Dillon, Chunmei Ban

Research output: Contribution to journalArticlepeer-review

65 Scopus Citations

Abstract

Thermochromic VO2 was directly synthesized using hydrothermal techniques. The effects of formation conditions on the structure and morphology of the final product were studied through X-ray diffraction (XRD), and scanning electron microscopy (SEM). Unique hollow sphere morphology was observed for the synthesized VO2 powders. Ex-situ XRD studies after heat treatment confirmed the thermal stability of the VO2 structure. Thermochromic properties, as a consequence of the reversible structural transformation between monoclinic VO2 and tetragonal phases, were observed by Fourier transform infrared spectroscopy (FTIR).

Original languageAmerican English
Pages (from-to)237-241
Number of pages5
JournalJournal of Solid State Chemistry
Volume212
DOIs
StatePublished - 2014

NREL Publication Number

  • NREL/JA-5900-60740

Keywords

  • Crystal phase
  • Thermochromic
  • Vanadium dioxide
  • VO (M)

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