Phase behavior of a binary symmetric mixture in slitlike pores with opposing walls: Application of density functional approach

Patrykiejew, A.; Pizio, Orest; Sokołowski, S.; Sokołowska, Z.

doi:10.1103/physreve.69.061605

Cited by 18 publications

(11 citation statements)

References 36 publications

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“…The equilibrium transition point can be determined by analyzing the dependence of the grand potential of the system in a slit pore as a function of the chemical potential * [30]. The corresponding grand potential in a slit pore has been calculated such as a b …”

Section: Attractive Hcy Fluid In a Slit Porementioning

confidence: 99%

Attractive hard-core Yukawa fluids in the nanosized pores: Structure and phase behaviors

Kim¹,

Kim²,

Seong³

2012

Fluid Phase Equilibria

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Section: Attractive Hcy Fluid In a Slit Porementioning

confidence: 99%

Attractive hard-core Yukawa fluids in the nanosized pores: Structure and phase behaviors

Kim¹,

Kim²,

Seong³

2012

Fluid Phase Equilibria

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“…These two solutions imply the presence of metastable states within the intervals 0.034 < ρσ 3 < 0.058 and 0.719 < ρσ 3 < 0.861. The equilibrium transition point can be determined by analyzing the dependence of the grand potential of the system in a slit pore as a function of the chemical potential βμ [26],…”

Section: B Structure and Phase Behaviors Of The Confined Two-yukawa mentioning

confidence: 99%

Structure and phase behavior of two-Yukawa fluids with competing interactions in planar slit pores

Kim

Suh

2012

Phys. Rev. E

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A density functional perturbation theory, which is based both on the modified fundamental-measure theory and on the first-order mean-spherical approximation for long-range attractive and repulsive interactions, has been developed for studying the structure and phase behaviors of a competing system restricted to slit pores. The hysteresis loop for the adsorption and desorption curves indicates that the system exhibits vapor-cluster and cluster-liquid transitions which depend on the pair potential parameters and the slit width (H). The periodic spacing (D) of the cluster is commensurate with the periodicity of modulation in the particle density distribution and more closely related to the vapor-cluster and cluster-liquid phase transitions of the system. For the cluster phase, we find the transition from a single liquidlike slab to a multi-liquidlike slab with increasing the slit width. The multi-liquidlike slab is formed depending on the periodicity of modulation by finite-size artifacts. The cluster-related phase transitions, such as the vapor-cluster or cluster-liquid transitions occur for H>D, while for HD), the system exhibits two tricritical points, joined to one another by the line of second-order transition. The results support the conclusion that the confinement effect plays an important role in determining the equilibrium phase transition.

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“…The equilibrium transition point has been determined from the pressure as a function of the chemical potential. 26 In a spherical pore, the equation for the pressure P w acting on the wall, can be calculated from the contact-value theorem 27 such as…”

Section: B Structure and Phase Behaviors Of The Competing Systems Inmentioning

confidence: 99%

Microphase separations of the fluids with spherically symmetric competing interactions

Kim

Suh

Seong

2012

The Journal of Chemical Physics

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A density functional perturbation theory has been developed for studying the phase behaviors of a competing system in the spherical pores. The pore size as well as the intensity of competing interactions exerts a strong influence on the vapor-liquid, vapor-cluster, and cluster-liquid transitions of a competing system. The microdomain spacing (D) of the cluster is commensurate with the periodicity of modulation in the particle density distributions of a competing system in a spherical pore with the pore radius (R). For the cluster phase, we find that the multi-vaporlike void is formed depending on the periodicity of modulation by finite-size artifacts. For R < D, the competing system only shows the vapor-liquid transition at a high amplitude. For R> D, the vapor-cluster and cluster-liquid transitions are found at a high amplitude, whereas at a low amplitude, the cluster-liquid transition only occurs. The competing system exhibits two tricritical points, which are joined to one another by the line of second-order transitions at the low and high densities. A comparison with the result of a slit pore shows that (i) the tricritical points in a spherical pore, which has the highest symmetry, occur at a low amplitude compared with that of a slit pore because of the geometrical properties of the pores, and that (ii) the slit pore relatively shows the wide vapor-cluster and cluster-liquid coexistence regions compared with that of a spherical pore: the geometrical symmetry of a pore results in a weaker tendency for phase separation.

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Phase behavior of a binary symmetric mixture in slitlike pores with opposing walls: Application of density functional approach

Cited by 18 publications

References 36 publications

Attractive hard-core Yukawa fluids in the nanosized pores: Structure and phase behaviors

Attractive hard-core Yukawa fluids in the nanosized pores: Structure and phase behaviors

Structure and phase behavior of two-Yukawa fluids with competing interactions in planar slit pores

Microphase separations of the fluids with spherically symmetric competing interactions

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