Hydrothermal synthesis and in situ surface modification of boehmite nanoparticles in supercritical water

T. Mousavand, S. Ohara, M. Umetsu, J. Zhang, S. Takami, T. Naka, T. Adschiri

Research output: Contribution to journalArticlepeer-review

74 Citations (Scopus)

Abstract

In situ surface modification of boehmite (AlOOH) nanoparticles during hydrothermal synthesis in supercritical water was examined by adding CH3(CH2)4CHO and CH3(CH2)5NH2 as modifier reagents to the reactants. Changes in surface properties of the nanoparticles by surface modification was observed by FTIR, dispersion in solvents and TEM analyses, which demonstrated that reagents chemically binded onto the surface of the AlOOH nanoparticles. The results of SEM and TEM pictures show that the surface modification affects crystal growth and reduces the particle size and changes the morphology of the particles.

Original languageEnglish
Pages (from-to)397-401
Number of pages5
JournalJournal of Supercritical Fluids
Volume40
Issue number3
DOIs
Publication statusPublished - 2007 Apr

Keywords

  • Boehmite nanoparticles
  • Hydrothermal synthesis
  • Supercritical water
  • Surface modification

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry

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