Wetting and drying scenarios of ionic solutions

Oleksy, Anna; Hansen, Jean‐Pierre

doi:10.1080/00268976.2011.554903

Cited by 14 publications

(18 citation statements)

References 45 publications

(122 reference statements)

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“…The curve-fitting computations with drying time were done using thinlayer drying models, that is, Newton, Henderson and Pabis, logarithmic, two-term, two-term exponential and Wang and Singh models (Kadam & Balasubramanian, 2011). Boltzmann model (Trzcinski et al, 2012) produces a sigmoidal curve and it has been used in a series of transport phenomena modelling (Skrdla & Robertson, 2005;Navajas et al, 2007;Navarro-Verdugo et al, 2011;Oleksy & Hansen, 2011) although literature describing its use in food engineering and food science studies could not be found.…”

Section: Drying Characteristicsmentioning

confidence: 99%

Physicochemical and sensory properties of purple Brazilian cherry (Eugenia uniflora, L.) foams

Chaves

Barreto

Reis

et al. 2013

Int J of Food Sci Tech

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Summary The objective of this work was to characterise the foams of purple Brazilian cherry (Eugenia uniflora L.) pulp made with different additives, aiming at foam‐mat drying. Characterisation was made through analyses of moisture, pH, acidity, soluble solids, density, water activity, colour, total and reducing sugars, protein and ashes. Drying was done at 55 °C for 2 h. Dried Brazilian cherry juice powder was rehydrated for acceptance test. It is concluded that the physicochemical characterisation of fresh Brazilian cherry pulp was satisfactory and was in accordance with the Brazilian standards for agro‐industrial products. Albumin was the best foaming agent that produced a good‐quality powder in a short period. The foam‐mat drying of Brazilian cherry pulp using albumin and Superliga® (Duas Rodas Industrial ltda, Santa Catarina, Brazil) as foaming agents produced a powder with good physicochemical properties and sensory quality and most preferred juice.

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Section: Drying Characteristicsmentioning

confidence: 99%

Physicochemical and sensory properties of purple Brazilian cherry (Eugenia uniflora, L.) foams

Chaves

Barreto

Reis

et al. 2013

Int J of Food Sci Tech

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“…However, in the present study we just consider weakly adsorbing walls, kT /ε gs = 1 and λ gs = 3. This interaction has been introduced having in mind a possible extension of the SPM model in order to take into account the attractive interaction between solute particles in the spirit of works by Oleksy and Hansen [4,[31][32][33]. On the other hand, our interest is in a dense fluid with high fraction of solvent species and low ion content.…”

Section: Resultsmentioning

confidence: 99%

Solvent primitive model of an electric double layer in slit-like pores: microscopic structure, adsorption and capacitance from a density functional approach

Pizio¹,

Sokołowski²

2014

Condens. Matter Phys.

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We investigate the electric double layer formed between charged walls of a slit-like pore and a solvent primitive model (SPM) for electrolyte solution. The recently developed version of the weighted density functional approach for electrostatic interparticle interaction is applied to the study of the density profiles, adsorption and selectivity of adsorption of ions and solvent species. Our principal focus, however, is in the dependence of differential capacitance on the applied voltage, on the electrode and on the pore width. We discuss the properties of the model with respect to the behavior of a primitive model, i.e., in the absence of a hard-sphere solvent. We observed that the differential capacitance of the SPM on the applied electrostatic potential has the camel-like shape unless the ion fraction is high. Moreover, it is documented that the dependence of differential capacitance of the SPM on the pore width is oscillatory, which is in close similarity to the primitive model.

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“…Along this vein is the beautiful and appealing recent theoretical work of Dung Di Caprio and Jean-Pierre Badiali who were able to formulate the description of classical fluids at equilibrium as a formally exact field theory [4][5][6][7][8]; this formalism was applied to model atomic and molecular fluids at solid interfaces [9][10][11][12]. Other more traditional approaches include molecular integral equation theories in the reference interaction site (RISM) [13][14][15][16], molecular [17][18][19][20][21][22][23][24], or mixed [25,26] picture and the density functional theory (DFT) in its atomic [27][28][29] or molecular version [30][31][32][33][34][35][36][37][38].…”

Section: Introductionmentioning

confidence: 99%

“…Much less applications exist for molecular fluids for which solvent orientations should be considered. The description has been generally limited to generic dipolar solvents or dipolar solvent/ions mixtures [32][33][34][35]; such an approach may be already considered as "civilized" compared to primitive continuum models [34]. We have proposed an extension of molecular DFT to arbitrary fluid/solvents (the so-called MDFT method) with the goal of describing the solvation of three-dimensional molecular object in those solvents [36][37][38][48][49][50][51][52][53][54][55][56].…”

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confidence: 99%

Solvation in atomic liquids: connection between Gaussian field theory and density functional theory

Sergiievskyi¹,

Levesque²,

Rotenberg³

et al. 2017

Condens. Matter Phys.

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For the problem of molecular solvation, formulated as a liquid submitted to the external potential field created by a molecular solute of arbitrary shape dissolved in that solvent, we draw a connection between the Gaussian field theory derived by David Chandler [Phys. Rev. E, 1993Rev. E, , 48, 2898 and classical density functional theory. We show that Chandler's results concerning the solvation of a hard core of arbitrary shape can be recovered by either minimising a linearised HNC functional using an auxiliary Lagrange multiplier field to impose a vanishing density inside the core, or by minimising this functional directly outside the core -indeed a simpler procedure. Those equivalent approaches are compared to two other variants of DFT, either in the HNC, or partially linearised HNC approximation, for the solvation of a Lennard-Jones solute of increasing size in a Lennard-Jones solvent. Compared to Monte-Carlo simulations, all those theories give acceptable results for the inhomogeneous solvent structure, but are completely out-of-range for the solvation free-energies. This can be fixed in DFT by adding a hard-sphere bridge correction to the HNC functional.

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Wetting and drying scenarios of ionic solutions

Cited by 14 publications

References 45 publications

Physicochemical and sensory properties of purple Brazilian cherry (Eugenia uniflora, L.) foams

Physicochemical and sensory properties of purple Brazilian cherry (Eugenia uniflora, L.) foams

Solvent primitive model of an electric double layer in slit-like pores: microscopic structure, adsorption and capacitance from a density functional approach

Solvation in atomic liquids: connection between Gaussian field theory and density functional theory

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