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Thermodiffusion anisotropy under magnetic field in ionic liquid-based ferrofluids

Thiago Fiuza,   Mitradeep Sarkar,   Jesse Cornelius Riedl,   Andrejs Cebers,   Fabrice Cousin,   Gilles Demouchy,   Jerome Depeyrot,   Emmanuelle Dubois,   Frédéric Gélébart,   Guillaume Mériguet,   Regine Perzynski  and  Veronique Peyre  

Abstract

Ferrofluids based on maghemite nanoparticles (NPs), typically 10 nm in diameter, are dispersed in an ionic liquid (1-ethyl 3-methylimidazolium bistriflimide - EMIM-TFSI). The average interparticle interaction is found repulsive by small angle scattering of X-rays and of neutrons, with a second virial coefficient A2 = 7.3. A moderately concentrated sample at F = 5.95 vol% is probed by forced Rayleigh scattering under an applied magnetic field (up to H = 100 kA m

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Article information

https://doi.org/10.1039/D0SM02190C
Submitted
13 Dec 2020
Accepted
21 Feb 2021
First published
22 Feb 2021
Soft Matter, 2021, Accepted Manuscript
Article type
Paper
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Thermodiffusion anisotropy under magnetic field in ionic liquid-based ferrofluids

T. Fiuza, M. Sarkar, J. C. Riedl, A. Cebers, F. Cousin, G. Demouchy, J. Depeyrot, E. Dubois, F. Gélébart, G. Mériguet, R. Perzynski and V. Peyre, Soft Matter, 2021, Accepted Manuscript , DOI: 10.1039/D0SM02190C

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