Surface pinning explains the low heat transfer coefficient between water and a carbon nanotube film

Erzsébet Sára Bogya, Botond Szilágyi, Á. Kukovecz

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

The heat transfer coefficient between a single water droplet and a multiwall carbon nanotube film (buckypaper) was measured for pristine and for carboxy functionalized nanotubes by infrared thermography. The value for non-functionalized nanotubes (438 Wm-2 K-1) was more than twice as large as that for functionalized ones (204 Wm-2 K-1) even though the water to nanotube affinity is larger in the latter case as indicated by contact angle measurement. This apparent contradiction can be explained by the hydrophilic surface pinning of the droplet and the vertically periodic layered structure of the buckypaper.

Original languageEnglish
Pages (from-to)27-35
Number of pages9
JournalCarbon
Volume100
DOIs
Publication statusPublished - Apr 1 2016

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Carbon Nanotubes
Heat transfer coefficients
Nanotubes
Carbon nanotubes
Water
Angle measurement
Contact angle

ASJC Scopus subject areas

  • Chemistry(all)

Cite this

Surface pinning explains the low heat transfer coefficient between water and a carbon nanotube film. / Bogya, Erzsébet Sára; Szilágyi, Botond; Kukovecz, Á.

In: Carbon, Vol. 100, 01.04.2016, p. 27-35.

Research output: Contribution to journalArticle

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