Permeability of common black foam films to gas. Part 2

Krustev, R.; Platikanov, Dimo; Nedyalkov, M.

doi:10.1016/s0927-7757(96)03818-6

Cited by 33 publications

(47 citation statements)

References 15 publications

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“…Princen and co-workers 5 observed that for a given surfactant, the monolayer permeability depends slightly on the gas nature; in contrast the same coefficient is strongly affected by the surfactant. 44 Thus, since no specific literature data were found, we safely decided to set the monolayer permeability of oxygen and carbon monoxide in C 6 E 12 to 0.278 m s −1 , which is close to the value reported in ref. 44.…”

Section: Estimate Of the Cross-flow Characteristic Time Through Soap-mentioning

confidence: 52%

“…However, our results appear to be consistent with similar studies in the literature. For instance, Krustev and coworkers 43,44 reported the k ML from experimental measurements of the permeability for air through SDS (sodium dodecyl sulfate) + electrolyte solutions obtaining values which ranged from 0.063 to 0.278 m s −1 depending on the type of electrolyte and its concentration.…”

Section: Model Results and Experimental Validationmentioning

confidence: 99%

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A multi-scale perspective of gas transport through soap-film membranes

Falciani

Franklin

Cagna³

et al. 2020

Mol. Syst. Des. Eng.

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Section: Estimate Of the Cross-flow Characteristic Time Through Soap-mentioning

confidence: 52%

Section: Model Results and Experimental Validationmentioning

confidence: 99%

A multi-scale perspective of gas transport through soap-film membranes

Falciani

Franklin

Cagna³

et al. 2020

Mol. Syst. Des. Eng.

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“…The permeation rates of thin soap films have been thoroughly investigated; see, for example, the review by Exerowa et al 15 It was established that the permeability is dependent on temperature, the type of electrolyte, type of surfactant, and their concentrations. [16][17][18][19][20][21] The thinnest soap films, known as Newton black films, consist of two surfactant monolayers absorbed onto each other. Somewhat thicker thin soap films, for which the monolayers are separated by a water layer, are known as common black films.…”

Section: Discussionmentioning

confidence: 99%

A simulation study of the kinetics of passage of CO2 and N2 through the liquid/vapor interface of water

Somasundaram

Panhuis

Lynden‐Bell

et al. 1999

The Journal of Chemical Physics

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A spectroscopic study of the fullerene/metal interface in C 60 -Al multilayers AIP Conf. Proc. 442, 265 (1998) The rate of passage of molecules of carbon dioxide and nitrogen through the vapor-liquid interface of water at 300 K is studied by simulation. Previous work has established the form of the free energy profile which has a minimum when the solute molecule is on the surface and a barrier between this state and solution in the bulk liquid. In one set of simulations, trajectories were initiated in the gas phase. From these, the average lifetime of molecules in the surface is determined to be considerably longer than the inverse of the energy relaxation rate, so that the sticking coefficient is one and exiting molecules have no memory of their original velocities. However, most molecules do return to the gas phase rather than entering the bulk solution. The rate of passage of molecules over the free energy barrier is studied using the reactive flux method with trajectories initiated near the top of the barrier. The results for nitrogen, in particular, give a good plateau in the time-dependent transmission coefficient and hence a reliable rate constant. The results from these two sets of simulations are combined to give an effective interface width which is used to determine the permeability of thin water films. These results are compared to experimental permeabilities of thin Newton black soap films. The rate-determining step for solution in bulk water is not passage through the few Å ngstroms width of the interface we study, but rather the transport from the vicinity of the interface into the bulk over the larger distance scale of m.

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“…Sessile bubbles on a frit have been used by various authors to measure the permeability (diffusivity) of soap films to gases (3)(4)(5). The rate of change of the bubble radius allows the determination of the diffusivities.…”

Section: Introductionmentioning

confidence: 99%