Tailoring nanofluid thermophysical profile through graphene nanoplatelets surface functionalization

Carolina Hermida-Merino; Martín Perez-Rodr íguez; Ana B. Pereiro; Manuel M. Piñeiro; María Jose Pastoriza-Gallego

doi:10.1021/acsomega.7b01681

Tailoring nanofluid thermophysical profile through graphene nanoplatelets surface functionalization

Carolina Hermida-Merino, Martín Perez-Rodr íguez, Ana B. Pereiro, Manuel M. Piñeiro, María Jose Pastoriza-Gallego

Research output: Contribution to journal › Article

4 Citations (Scopus)

Abstract

In this study, the effect of chemical surface functionalization through oxidation of exfoliated graphite nanoplatelets in the transport properties of their aqueous nanofluids has been analyzed. With this objective, thermal conductivity and viscoelastic properties have been determined for original and oxidized nanoplatelets. The results show that the functionalization completely changes the internal structure of the suspension, which is reflected in shifts of even orders of magnitude on viscosity, yield stress, or storage or loss moduli. It is evident that this influences thermal conduction properties as well, as it has been also demonstrated. This shows that nanostructure surface functionalization can be a useful strategy to tune nanofluid thermophysical properties.

Original language	English
Pages (from-to)	744-752
Number of pages	9
Journal	ACS Omega
Volume	3
Issue number	1
DOIs	https://doi.org/10.1021/acsomega.7b01681
Publication status	Published - Jan 2018

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title = "Tailoring nanofluid thermophysical profile through graphene nanoplatelets surface functionalization",

abstract = "In this study, the effect of chemical surface functionalization through oxidation of exfoliated graphite nanoplatelets in the transport properties of their aqueous nanofluids has been analyzed. With this objective, thermal conductivity and viscoelastic properties have been determined for original and oxidized nanoplatelets. The results show that the functionalization completely changes the internal structure of the suspension, which is reflected in shifts of even orders of magnitude on viscosity, yield stress, or storage or loss moduli. It is evident that this influences thermal conduction properties as well, as it has been also demonstrated. This shows that nanostructure surface functionalization can be a useful strategy to tune nanofluid thermophysical properties.",

author = "Carolina Hermida-Merino and {Perez-Rodr {\'i}guez}, Mart{\'i}n and Pereiro, {Ana B.} and Pi{\~n}eiro, {Manuel M.} and Pastoriza-Gallego, {Mar{\'i}a Jose}",

note = "The authors acknowledge CACTI (Univ. de Vigo) for technical assistance with microscopy techniques and Ministerio de Economia y Competitividad, Spain, for financial support (Grant ref FIS2015-68910-P). Ana B. Pereiro wishes to thank FCT/MEC (Portugal) for financial support through her contract (Investigator FCT 2014, ref: IF/00190/2014).",

year = "2018",

month = jan,

doi = "10.1021/acsomega.7b01681",

language = "English",

volume = "3",

pages = "744--752",

journal = "ACS Omega",

issn = "2470-1343",

publisher = "American Chemical Society",

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AU - Hermida-Merino, Carolina

AU - Perez-Rodr íguez, Martín

AU - Pereiro, Ana B.

AU - Piñeiro, Manuel M.

AU - Pastoriza-Gallego, María Jose

N1 - The authors acknowledge CACTI (Univ. de Vigo) for technical assistance with microscopy techniques and Ministerio de Economia y Competitividad, Spain, for financial support (Grant ref FIS2015-68910-P). Ana B. Pereiro wishes to thank FCT/MEC (Portugal) for financial support through her contract (Investigator FCT 2014, ref: IF/00190/2014).

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