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Dispersion stability analysis of α-Fe2O3-water-based nanofluid

  • Qiang Hui Xu
  • , Cheng Zan
  • , Hai Feng Jiang
  • , Lin Shi*
  • *Corresponding author for this work
  • Tsinghua University
  • China National Petroleum Corporation

Research output: Contribution to journalArticlepeer-review

Abstract

Experimental and theoretical studies were performed for the stability of nanofluid produced by dispersion of α-Fe2O3 in water. Two kinds of dispersants based on different dispersion mechanism were selected, namely Ammonium citrate (AC) and Gum arabic (GA). The nanofluid was prepared by two-step method. The stability of nanofluid was then investigated by Sediment photograph capturing, UV-Vis spectrophotometer, Dynamic light scattering and Zeta potential test. The results were analyzed by colloid theory to research the characteristic and mechanism of different dispersion system. Finally, a theoretical evaluation system was proposed to analyze the dispersion stability of metal nanofluid.

Original languageEnglish
Pages (from-to)2006-2010
Number of pages5
JournalKung Cheng Je Wu Li Hsueh Pao/Journal of Engineering Thermophysics
Volume34
Issue number11
Publication statusPublished - Nov 2013
Externally publishedYes

Keywords

  • Dispersant
  • Dispersion stability
  • Nano-catalyst
  • Nanofluid

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