RT Journal Article
T1 Sub-µL measurements of the thermal conductivity and heat capacity of liquids
A1 López Bueno, Carlos
A1 Bugallo Ferrón, David
A1 Leborán Alvarez, Víctor
A1 Rivadulla Fernández, José Francisco
AB We present the analysis of the thermal conductivity, κ, and heat capacity, Cp, of a wide variety of liquids, covering organic molecular solvents, ionic liquids and water–polymer mixtures. These data were obtained from ≈0.6 μL samples, using an experimental development based on the 3ω method, capable of the simultaneous measurement of κ and Cp. In spite of the different type and strength of interactions, expected in a priori so different systems, the ratio of κ to the sound velocity is approximately constant for all of them. This is the consequence of a similar atomic density for all these liquids, notwithstanding their different molecular structures. This was corroborated experimentally by the observation of a Cp/V ≈ 1.89 × 106 J K−1 m−3 (≈3R/2 per atom), for all liquids studied in this work. Finally, the very small volume of the sample required in this experimental method is an important advantage for the characterization of systems like nanofluids, in which having a large amount of the dispersed phase is sometimes extremely challenging
PB Royal Society of Chemistry
SN 1463-9076
YR 2018
FD 2018
LK http://hdl.handle.net/10347/17026
UL http://hdl.handle.net/10347/17026
LA eng
NO López-Bueno, C., Bugallo, D., Leborán, V., & Rivadulla, F. (2018). Sub-μL measurements of the thermal conductivity and heat capacity of liquids. Physical Chemistry Chemical Physics, 20(10), 7277-7281. doi: 10.1039/c8cp00165k
NO This work was supported by the Ministry of Science of Spain (Projects No. MAT2016-80762-R), the Consellería de Cultura, Educación e Ordenación Universitaria (ED431F 2016/008, and Centrosingular de investigación de Galicia accreditation 2016-2019, ED431G/09), and the European Regional Development Fund (ERDF)
DS Minerva
RD 22 abr 2026