TY - JOUR
T1 - Tailoring nanofluid thermophysical profile through graphene nanoplatelets surface functionalization
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).
PY - 2018/1
Y1 - 2018/1
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=85048426379&partnerID=8YFLogxK
U2 - 10.1021/acsomega.7b01681
DO - 10.1021/acsomega.7b01681
M3 - Article
AN - SCOPUS:85048426379
VL - 3
SP - 744
EP - 752
JO - ACS Omega
JF - ACS Omega
SN - 2470-1343
IS - 1
ER -