Concentrated colloidal dispersion of decanoic acid self-assembled monolayer protected CeO2 nanoparticles up to 77 wt% in nonpolar organic solvents

Toshihiko Arita, Jungwoo Yoo, Yu Ueda, Tadafumi Adschiri

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

Abstract

Self-assembled monolayers (SAMs) of decanoic acids were prepared on cerium oxide nanoparticles (NPs). The dispersion of the NPs was improved by increasing the packing density of decanoic acid SAM on the NPs. Highly concentrated ceria nanofluids more than 22 vol% (about 77 wt%) in cyclohexane and /raAw-decalin were achieved, according to the criterion to the packing density and chain length of the alkanoic acid of the SAM to disperse the ceria NPs in nonpolar organic solvents proposed previously. Temperature effect on the dispersion was also examined and it was turned out that the dispersion was strongly enhanced with activation of Brownian motion.

Original languageEnglish
Title of host publicationColloidal Crystals, Quasicrystals, Assemblies, Jammings and Packings
PublisherMaterials Research Society
Pages7-11
Number of pages5
ISBN (Print)9781632660961
DOIs
Publication statusPublished - 2013
Event2012 MRS Fall Meeting - Boston, MA, United States
Duration: 2012 Nov 252012 Nov 30

Publication series

NameMaterials Research Society Symposium Proceedings
Volume1503
ISSN (Print)0272-9172

Other

Other2012 MRS Fall Meeting
CountryUnited States
CityBoston, MA
Period12/11/2512/11/30

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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    Arita, T., Yoo, J., Ueda, Y., & Adschiri, T. (2013). Concentrated colloidal dispersion of decanoic acid self-assembled monolayer protected CeO2 nanoparticles up to 77 wt% in nonpolar organic solvents. In Colloidal Crystals, Quasicrystals, Assemblies, Jammings and Packings (pp. 7-11). (Materials Research Society Symposium Proceedings; Vol. 1503). Materials Research Society. https://doi.org/10.1557/opl.2013.1111