Triple-point wetting of Ne on solid CO2

Bruschi, L.; Paniz, E.; Mistura, Giampaolo

doi:10.1063/1.1334348

Cited by 8 publications

(2 citation statements)

References 36 publications

(20 reference statements)

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“…Unfortunately, subsequent experiments of Bruschi et al did not confirm this prediction, instead showing triple point wetting of Ne on CO 2 . [89] Thus, it must be said that we do not adequately understand this class of adsorption system.…”

Section: Wetting Transitions On Other Surfacesmentioning

confidence: 99%

“…However, a closely related system, Ne/CO 2 , was predicted by the same theoretical approach to have such a wetting transition, some 5K below the critical point of Ne[80]. Unfortunately, subsequent experiments of Bruschi et al did not confirm this prediction, instead showing triple point wetting of Ne on CO 2 [89]. Thus, it must be said that we do not adequately understand this class of adsorption system.…”

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confidence: 97%

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To Wet or Not to Wet: That Is the Question

Gatica

Cole

2009

J Low Temp Phys

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Wetting transitions have been predicted and observed to occur for various combinations of fluids and surfaces. This paper describes the origin of such transitions, for liquid films on solid surfaces, in terms of the gas-surface interaction potentials V(r), which depend on the specific adsorption system. The transitions of light inert gases and H 2 molecules on alkali metal surfaces have been explored extensively and are relatively well understood in terms of the least attractive adsorption interactions in nature. Much less thoroughly investigated are wetting transitions of Hg, H 2 O, heavy inert gases and other molecular films. The basic idea is that nonwetting occurs, for energetic reasons, if the adsorption potential's well-depth D is smaller than, or comparable to, the well-depth ε of the adsorbate-adsorbate mutual interaction. At the wetting temperature, T w , the transition to wetting occurs, for entropic reasons, when the liquid's surface tension is sufficiently small that the free energy cost in forming a thick film is sufficiently compensated by the fluidsurface interaction energy. Guidelines useful for exploring wetting transitions of other systems are analyzed, in terms of generic criteria involving the "simple model", which yields results in terms of gas-surface interaction parameters and thermodynamic properties of the bulk adsorbate.

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Section: Wetting Transitions On Other Surfacesmentioning

confidence: 99%

mentioning

confidence: 97%

To Wet or Not to Wet: That Is the Question

Gatica

Cole

2009

J Low Temp Phys

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Adsorption Within and On Regularly Patterned Substrates

Bruschi

Mistura

2009

J Low Temp Phys

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Advances in nanofabrication techniques have made possible the realization of highly-regular patterned surfaces. In this paper, we review recent experiments involving the adsorption of simple classical fluids in regular arrays of microscopic channels with different cross-section profiles and of straight, not interconnected mesopores, which show a rich interplay between geometry and physics. The attention will be devoted to the features of wetting transitions in microchannels and of capillary filling in cylindrical mesopores

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Phase behavior of films adsorbed on model crystal surfaces

Patrykiejew¹,

Sokołowski²,

Binder

2002

The Journal of Chemical Physics

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The paper discusses the structure and phase behavior of films adsorbed on the (100) plane of model face-centered cubic crystals characterized by different strength of the surface potential studied by means of Monte Carlo simulation. Melting and disordering of incommensurate and commensurate monolayer and bilayer films formed on strongly attractive surfaces as well as the behavior of small droplets deposited on weakly attractive surfaces are discussed. Besides, the nature of the commensurate–incommensurate transition in monolayer films is considered and shown to exhibit different mechanism depending on the strength of the adsorbing potential. It is also shown that the formation of higher layers, on top of the dense incommensurate solid monolayer, may lead to the restructuring of the first layer and to a partial recovery of epitaxial structure in the film. The crossover from the regime of complete to incomplete wetting is studied with the help of the Monte Carlo simulation method in both canonical and grand canonical ensembles. In particular, discussion focusses on melting and spreading of microdrops deposited on weakly attractive surfaces.

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Triple-point wetting of Ne on solid CO2

Cited by 8 publications

References 36 publications

To Wet or Not to Wet: That Is the Question

To Wet or Not to Wet: That Is the Question

Adsorption Within and On Regularly Patterned Substrates

Phase behavior of films adsorbed on model crystal surfaces

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