Solution-based fabrication of VO2 (M) nanoparticles via lyophilisation

Xun Cao, Myat Noe Thet, Yu Zhang, Say Chye Joachim Loo, Shlomo Magdassi, Qingyu Yan, Yi Long*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

24 Scopus citations

Abstract

Thermochromic vanadium dioxide (VO2) is the most extensively researched smart material owing to its near room-temperature phase transition at around 68 °C. Freeze drying has been employed in the solution-based fabrication of highly pure and crystalline VO2 nanoparticles and it was found that freeze drying can largely eliminate the agglomeration issue which is common in nanoparticle fabrication. The particle size, phase transition temperature (τc), crystallinity and latent heat (LH) have been systematically studied by changing the precursor concentration and annealing temperature. The freeze-dried sample (with 7.5 mL H2O2 in precursor) annealed at 650 °C has a particle size of ∼53 nm and τc of 64.5 °C, as well as high crystallinity with LC of 36.76 J g-1.

Original languageAmerican English
Pages (from-to)25669-25675
Number of pages7
JournalRSC Advances
Volume5
Issue number33
DOIs
StatePublished - 2015

Bibliographical note

Publisher Copyright:
© 2015 The Royal Society of Chemistry.

Fingerprint

Dive into the research topics of 'Solution-based fabrication of VO2 (M) nanoparticles via lyophilisation'. Together they form a unique fingerprint.

Cite this