Beatriz Millan Malo et al 2001 J. Phys.: Condens. Matter 13 1361 doi:10.1088/0953-8984/13/7/303
Adsorption and phase transitions in a two-site associating Lennard-Jones fluid confined to energetically heterogeneous slit-like pores; application of the density functional method
Beatriz Millan Malo1, Orest Pizio2,3, Andrzej Patrykiejew2 and Stefan Sokolowski2
Show affiliationsA density functional approach is used to study adsorption and phase behaviour of the two-bonding-site associating Lennard-Jones (LJ) fluid in slit-like pores with energetically heterogeneous walls. Phase behaviour of strongly and weakly associating, polymerizing fluid in the pores with a periodic surface potential, characterized by different strengths and the spacings between adjacent minima, as well as different pore widths is discussed. A comparison of the results obtained for strongly and weakly associating fluids elucidates the role of bonding between fluid species in the pore-filling mechanism. An interplay between layering transitions, the formation of an intermediate `bridge' phase and the final capillary condensation in the pores with energetically corrugated walls is discussed in detail.
- PACS
- Subjects
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Soft matter, liquids and polymers
- Dates
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Issue 7 (19 February 2001)
Received 29 September 2000, in final form 18 January 2001
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Adsorption and phase transitions in a two-site associating Lennard-Jones fluid confined to energetically heterogeneous slit-like pores; application of the density functional method
Beatriz Millan Malo et al 2001 J. Phys.: Condens. Matter 13 1361
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