Annealing effect on synthesis of VO 2 (M) nanopowders by a novel solution-based process

Li Hua Chen, Chum Ming Huang, Jian Hua Zhou, Gang Xu, Miao Lei, Xiu Di Xiao

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)


This paper describes a novel and simple method to preparing monoclinic VO 2 (M) nanopowders via the reaction of ammonium meta-vanadate (NH 4VO 3) and oxalic acid dihydrate (C 2H 2O 4·2H 2O). The products were characterized by means of methods. XRD results show that well crystallized nanopowders of the monoclinic VO 2 (M) were successfully synthesized, while the molar ratio between NH 4VO 3 and C 2H 2O 4·2H 2O was kept at 1:0.5∼2.5, and the annealing temperature was 350∼750 °C for 2∼10 hour in nitrogen atmosphere. The spherical morphology of the samples is characterized by SEM. The crystallization temperature of the desired M/R-phase VO 2 is lower than 387 °C in this work. And the phase transition temperature is determined by differential scanning calorimetry (DSC).

Original languageEnglish
Title of host publicationAdvanced Materials Research II
Number of pages5
Publication statusPublished - 2012
Externally publishedYes
Event2012 2nd International Conference on Advanced Material Research, ICAMR 2012 - Chengdu, China
Duration: 2012 Jan 72012 Jan 8

Publication series

NameAdvanced Materials Research
ISSN (Print)1022-6680


Conference2012 2nd International Conference on Advanced Material Research, ICAMR 2012


  • M-phase VO
  • Metal-insulator transition (MIT)
  • Solution-based process

ASJC Scopus subject areas

  • Engineering(all)


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