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Issue 99, 2015
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Nanomechanical analysis of the adsorption and desorption of water vapor on porous surfaces

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Abstract

We fabricated nanoporous microcantilevers using anodic aluminum oxide (AAO) and measured the variations in the resonance frequency and deflection of the cantilever during the adsorption and desorption of water vapor. The high surface area and low modulus of the AAO cantilever, due to the presence of the nanopores, permitted the simultaneous measurement of both the changes in mass and surface stress with high sensitivity. The cantilever deflection at the resonance frequency revealed a large deflection change during the early stages of water adsorption and a small deflection change during the later stages. These effects were attributed to the transition from a sub-monolayer water film to a multilayer water film.

Graphical abstract: Nanomechanical analysis of the adsorption and desorption of water vapor on porous surfaces

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Submitted
07 Aug 2015
Accepted
11 Sep 2015
First published
16 Sep 2015

RSC Adv., 2015,5, 80925-80928
Article type
Paper
Author version available

Nanomechanical analysis of the adsorption and desorption of water vapor on porous surfaces

D. Lee, C. Yim and S. Jeon, RSC Adv., 2015, 5, 80925
DOI: 10.1039/C5RA15850H

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