Liquid droplet evaporation from buckypaper: On the fundamental properties of the evaporation profile

Gábor Schuszter, Erzsébet Sára Bogya, D. Horváth, A. Tóth, Henrik Haspel, Á. Kukovecz

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Buckypaper is a mesoporous, self-supporting, electrically conducting mat of multiwall carbon nanotubes prepared by filtering a nanotube suspension through a submicron pore diameter membrane and drying the filter cake. Multiple phenomena take place simultaneously when a liquid droplet contacts the buckypaper surface: wetting, spreading, adsorption, capillary filling, evaporation from the surface, evaporation from the pores, infiltration of nanotube-nanotube junctions, gravity induced convective flow, etc. The electrical resistance of the buckypaper as a function of time exhibits a maximum curve during these processes. The fine details of the shape of this curve are slightly different for every solvent. We refer to this characteristic function as the evaporation profile of the studied liquid. In this paper we combine simultaneous electrical resistivity measurement, weight measurement and visible image processing methods to reveal the basic properties of the evaporation profile. A good correlation between the changes in buckypaper mass and electrical resistance was found and the distribution of the liquid penetrating the buckypaper matrix followed specific patterns and was correlated with the shape of the measured evaporation profile. Results are compared with fluid dynamic simulations. The evaporation profile emerges as a reproducible and inexpensive qualitative analytical tool for liquid identification. Alternatively, recording the evaporation profile of a chosen test liquid could become a feasible characterization method for mesoporous materials.

Original languageEnglish
Pages (from-to)105-112
Number of pages8
JournalMicroporous and Mesoporous Materials
Volume209
DOIs
Publication statusPublished - Jun 1 2015

Fingerprint

Evaporation
evaporation
Liquids
liquids
profiles
Nanotubes
nanotubes
Acoustic impedance
electrical resistance
weight measurement
porosity
Carbon Nanotubes
Mesoporous materials
convective flow
characteristic equations
Weighing
infiltration
curves
fluid dynamics
Fluid dynamics

Keywords

  • Buckypaper
  • Carbon nanotube
  • Drying
  • Evaporation profile
  • Sensor

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials

Cite this

Liquid droplet evaporation from buckypaper : On the fundamental properties of the evaporation profile. / Schuszter, Gábor; Bogya, Erzsébet Sára; Horváth, D.; Tóth, A.; Haspel, Henrik; Kukovecz, Á.

In: Microporous and Mesoporous Materials, Vol. 209, 01.06.2015, p. 105-112.

Research output: Contribution to journalArticle

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