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Journal of Nanoparticle Research

Erschienen in:

01.07.2020 | Research paper

Experimental investigation on stability and thermal conductivity of dodecanethiol-coated copper nanofluids

verfasst von: Lu Zhou, Yifan Zhao, Honghe Ma

Erschienen in: Journal of Nanoparticle Research | Ausgabe 7/2020

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Abstract

Nanofluids were prepared by dispersing dodecanethiol-coated copper nanoparticles (~ 50 nm average diameter) in toluene. The stability and thermal conductivity of the nanofluids were investigated for various particle volume concentrations (0.09–1.5 vol%) and temperatures (293–333 K). The amount of dodecanethiol surfactant coated on the nanoparticle surface was determined by thermogravimetric analysis (TGA), and the chemical structure of adsorbed surfactant molecules was characterized by Fourier transform infrared spectroscopy (FT-IR). UV-vis absorbance analysis of the nanofluid was undertaken to determine the optimum ultrasonic vibration time for stability enhancement. The modeling study generated a new semi-practical correlation as a function of particle volume concentration and temperature for an existing Brownian motion–based thermal conductivity model, which demonstrated good compatibility with the present experimental measurements compared with other models.

Vorheriger Artikel Mn3O4/p(DCPD)HIPE nanocomposites as an efficient catalyst for oxidative degradation of phenol

Nächster Artikel Preparation of nanocellulose by hydrolysis catalysedusing salts with different Fe valency

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Titel: Experimental investigation on stability and thermal conductivity of dodecanethiol-coated copper nanofluids
verfasst von: Lu Zhou
Yifan Zhao
Honghe Ma
Publikationsdatum: 01.07.2020
Verlag: Springer Netherlands
Erschienen in: Journal of Nanoparticle Research / Ausgabe 7/2020
Print ISSN: 1388-0764
Elektronische ISSN: 1572-896X
DOI: https://doi.org/10.1007/s11051-020-04943-2

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