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Adsorption-Induced Deformation of Microporous Carbons: Pore Size Distribution Effect

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Kowalczyk, Piotr, Ciach, Alina, Neimark, Alexander V.·2008·Langmuir

Abstract

We present a thermodynamic model of adsorption-induced deformation of microporous carbons. The model represents the carbon structure as a macroscopically isotropic disordered three-dimensional medium composed of stacks of slit-shaped pores of different sizes embedded in an incompressible amorphous matrix. Adsorption stress in pores is calculated by means of Monte Carlo simulations. The proposed model reproduces qualitatively the experimental nonmonotonic dilatometric deformation curve for argon adsorption on carbide-derived activated carbon at 243 K and pressure up to 1.2 MPa. The elastic deformation (contraction at low pressures and swelling at higher pressures) results from the adsorption stress that depends strongly on the pore size. The pore size distribution determines the shape of the deformation curve, whereas the bulk modulus controls the extent of the sample deformation.

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Metadata

Authors
Kowalczyk, P., Ciach, A., & Neimark, A. V.
Venue
Langmuir
Published
2008-06-04
Volume
24
Issue
13
Pages
6603-6608
ISSN
  • 0743-7463 (ISSN-L)
  • 1520-5827
OpenAlex
W2076451369
Cited by
159
References
0
FWCI
4.08
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: Adsorption-Induced Deformation of Microporous Carbons: Pore Size Distribution Effect. https://app.cochat.ai/papers/10.1021/la800406c
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Kowalczyk, P., Ciach, A., & Neimark, A. V. (2008). Adsorption-Induced Deformation of Microporous Carbons: Pore Size Distribution Effect. Langmuir. https://doi.org/10.1021/la800406c

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Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.