An aqueous process for the production of fully dispersible t-ZrO2 nanocrystals

Chien Wei Chen, Xiu Sheng Yang, Anthony S.T. Chiang

Research output: Contribution to journalArticlepeer-review

18 Scopus citations


The aqueous process currently employed in industry for the production zirconia has been modified to produce fully dispersible nanocrystals. Compared to the non-aqueous processes, only less expensive raw materials, lower temperature and simpler equipment were needed. Yet isolated ∼10 nm ZrO2 nanocrystals of pure tetragonal phase were achieved. After proper surface modification, the produced nanocrystals could be re-dispersed as 10 wt% transparent aqueous sol. Less transparent but still fully dispersed sol could also be achieved when modified and re-dispersed in organic solvent such as hexane or chloroform. Further reduction of crystal size in this aqueous process should be possible after optimizing the process parameters, so that fully dispersed organic sol with <10 nm zirconia nanocrystals needed for the preparation of transparent high refractive inorganic-organic can be produced in large volume.

Original languageEnglish
Pages (from-to)296-301
Number of pages6
JournalJournal of the Taiwan Institute of Chemical Engineers
Issue number3
StatePublished - May 2009


  • Aqueous process
  • Dispersion
  • Hydrothermal
  • Nanocrystal
  • ZrO


Dive into the research topics of 'An aqueous process for the production of fully dispersible t-ZrO2 nanocrystals'. Together they form a unique fingerprint.

Cite this