BIBLIOS

Document type
Conference papers

Document subtype
Abstract

Title
Thermal conductivity of alkylimidazolium cyano ionanofluids

Participants in the publication
João M. P. França (Author)
S. M. S. Murshed (Author)
INSTITUTO SUPERIOR TÉCNICO
CQE
Carlos Nieto de Castro (Author)
Dep. Química e Bioquímica
CQE
Agílio A. H. Pádua (Author)

Summary
Available data on the thermal conductivity of IoNanofluids with MWCNT´s have shown that this property is sensitive to the molecular constitution. The compounds studied can be separated into head group, an aliphatic side chain and an anion. It can be concluded that:\\n- Changing the side chain length, the enhancement in the thermal conductivity increases, possibly due to a better interaction between this chain and the carbon nanotube surface (non-polar entities) that facilitates heat transfer\\n- The change of the head group does not seem to affect the enhancement very much\\n- For liquids that have the same cation, [C2mim or C4mim], and different anions, [N(CN)2], [C2H5OSO3] and [(CF3SO2)2N], the anion structure affects the enhancement significantly\\n- The enhancement in the thermal conductivity is strongly dependent on the weight/volume fraction of the carbon nanotubes present in the IoNanofluid and weakly dependent on temperature\\n- Current nanofluid enhancement theories are not able to predict the experimental values found\\nAfter the study of DCA systems [1], new data on [C2mim][SCN], [C4mim][SCN] [C2mim][C(CN)3] and [C4mim][C(CN)3], and their nanosystems with MWCNT’s will be reported. The overall set of results will be used to generalize the preliminary conclusions above. A discussion on the theoretical models for ionic liquids and for the enhancements in the IoNanofluids will also be presented.

Editor(s)
Katharina Schroder


Institution
FACULDADE DE CIÊNCIAS DA UNIVERSIDADE DE LISBOA

Event
26th EUCHEM on Molten Salts and Ionic Liquids, 3-8, 2016

Publication Identifiers
ISBN - 9783950401745

Address
Vienna, Austria

Organizers
Institute of Applied Synthetic Chemistry, TU-Wien

Publisher
TU-Wien

Collection
Abstract Book



Document Identifiers
URL - http://euchem2016.book-of-abstracts.com/programme/confirmed-poster-presentations/

Keywords
Ionanoflids Alkylimidazolium cyano ionic liquids MWCNT's Thermal conductivity