Academic literature on the topic 'Frenkel–Halsey–Hill'

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Journal articles on the topic "Frenkel–Halsey–Hill"

1

Pomonis, Philippos J., and Eleni T. Tsaousi. "Frenkel−Halsey−Hill Equation, Dimensionality of Adsorption, and Pore Anisotropy." Langmuir 25, no. 17 (2009): 9986–94. http://dx.doi.org/10.1021/la901121c.

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2

Njewa, Joel Brian, Timothy Tiwonge Biswick, Ephraim Vunain, Cheruiyot Silas Lagat, and Solomon Omwoma Lugasi. "Synthesis and Characterization of Activated Carbon from Agrowastes for the Removal of Acetic Acid from an Aqueous Solution." Adsorption Science & Technology 2022 (June 6, 2022): 1–13. http://dx.doi.org/10.1155/2022/7701128.

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In this study, activated carbons prepared from agrowastes by chemical activation were used to remove acetic acid from an aqueous solution through a batch process. The prepared adsorbents were characterized by SEM, XRD, FT-IR, and point of zero charge (pHpzc). The effects of adsorbent dosage, initial concentration, and contact time were considered. Equilibrium data was tested using Langmuir, Freundlich, Temkin, and Frenkel–Halsey–Hill models. The degree of adsorption of acetic acid increased for both adsorbents as contact time, and adsorbent dosage and initial concentration were increased. The
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3

Hatch, Courtney D., Ann L. Greenaway, Matthew J. Christie, and Jonas Baltrusaitis. "Water adsorption constrained Frenkel–Halsey–Hill adsorption activation theory: Montmorillonite and illite." Atmospheric Environment 87 (April 2014): 26–33. http://dx.doi.org/10.1016/j.atmosenv.2013.12.040.

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4

Kats, B. M., and V. V. Kutarov. "Adsorption of the Vapour of Low-Molecular Substances by Swelling Polymers." Adsorption Science & Technology 9, no. 1 (1992): 30–35. http://dx.doi.org/10.1177/026361749200900103.

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The swelling and adsorption arising in the case of the polymolecular sorption of the vapour of low-molecular substances by swelling polymers can be satisfactorily described in terms of Frenkel-Halsey-Hill (FHH) theory. The FHH equation has been used to analyze the sorption and swelling isotherms obtained from the sorption of water vapour by styrene/divinylbenzene copolymers possessing surface amino groups. The notion of the ‘monolayer swelling volume’ has been introduced by the authors to obtain an equation which describes the characteristic swelling curve for the group of substances investiga
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5

He, Juan, and Chang Hui Yang. "Research on the Pore Structure of Alkali-Slag Cement Stone Activated with Water Glass." Advanced Materials Research 194-196 (February 2011): 899–903. http://dx.doi.org/10.4028/www.scientific.net/amr.194-196.899.

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In view of the phenomena that alkali-slag cement has high mechanical strength and good impermeability and they are closely related with the pore structure of cement stone,water glass was selected as the alkali activater, nitrogen adsorption method was adopted to study the pore structure of alkali-slag cement stone, while the pore surface fractal dimension was determined by fractal theory. The results show that the pore structure of alkali-slag cement stone posesses obvious fractal characters and that fits the Frenkel-Halsey-Hill(FHH) model quite well.So the pore surface fractal dimension can b
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6

Mihalka, Peter, and Peter Matiasovsky. "Water Vapour Sorption and Hysteresis Models Applicable for Silicate Building Materials." Advanced Materials Research 1126 (October 2015): 111–16. http://dx.doi.org/10.4028/www.scientific.net/amr.1126.111.

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Various models of the water vapour sorption isotherms were analysed from the aspect of their applicability for silicate-based building materials like calcium-silicates, burnt clay bricks, plasters and mortars. The analysis included the assessment of the various sorption hysteresis models. They were compared and calibrated with experimental data, consisting of the main adsorption and the scanning curves. For the silicate-based building materials as a fundamental the Brunauer–Emmett–Teller (BET) and Frenkel–Halsey–Hill (FHH) models of adsorption in a combination together with Kelvin-Cohan (KC) m
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7

Bahah, Salah, Saci Nacef, Derradji Chebli, Brahim Djellouli, and Abdallah Bouguettoucha. "Study and Elucidation of Fractal Dimension in Anionic and Cationic Clays: Relationship between Fractal Dimensions to the Amount Adsorbed and Pore Size." Advanced Engineering Forum 30 (November 2018): 25–42. http://dx.doi.org/10.4028/www.scientific.net/aef.30.25.

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In order to search the correlation between textural properties and geometrical heterogeneity in clays, as characterized by the surface fractal dimension, we used, three different cationic clays; namely Kaolin of Hamam Dbagh, Montmorillonite (Mt) of Maghnia and a sample prepared from Sodium Montmorillonte (Na-Mt)) and three different synthetic anionic clays, ZnAlCO3, MgAlCO3at a molar ratio equal to three (R=3), and NiAlCO3with different molar ratios (R=2, R=3 and R= 4). This DSparameter was evaluated from nitrogen (N2) analysis gas. the fractal Frenkel-Halsey-Hill (FHH) (DS) models was used to
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8

Ahmad, A. L., and N. N. N. Mustafa. "Pore surface fractal analysis of palladium-alumina ceramic membrane using Frenkel–Halsey–Hill (FHH) model." Journal of Colloid and Interface Science 301, no. 2 (2006): 575–84. http://dx.doi.org/10.1016/j.jcis.2006.05.041.

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9

Shandurkov, Dimitar, Petar Ignatov, Ivanka Spassova, and Stoyan Gutzov. "Spectral and Texture Properties of Hydrophobic Aerogel Powders Obtained from Room Temperature Drying." Molecules 26, no. 6 (2021): 1796. http://dx.doi.org/10.3390/molecules26061796.

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Attenuated Total Reflectance Infrared (ATR-IR) spectroscopy and texture measurements based on nitrogen adsorption-desorption isotherms are combined to characterize silica aerogel granules with different degrees of hydrophobicity. The aerogels were prepared from tetraethoxysilane via a room temperature hydrolysis-gelation process, solvent exchange, hydrophobization, and drying at subcritical conditions. The dependencies between the texture properties, pore architectures, surface fractal dimensions, and degree of hydrophobicity of the samples are extracted from the ATR-IR spectra and the adsorpt
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10

Liu, Jian Peng, Xiao Jun Zhang, Hong Xi Zhu, and Cheng Ji Deng. "Study on the Pore Structure of Forsterite Insulating Material." Key Engineering Materials 697 (July 2016): 119–23. http://dx.doi.org/10.4028/www.scientific.net/kem.697.119.

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Forsterite insulating materials were prepared by molten salt method using forsterite powder, pulp waste, NaCl and Na2CO3 as raw material. The pore size distribution and pore structural parameters of the sample were studied by nitrogen adsorption-desorption method. The fractal dimension of pore was obtained based on FHH (Frenkel-Halsey-Hill) equation. The results showed that adsorption-desorption isotherm of the sample was identified as type II due to the long-narrow pore with narrow openings. The pore size and fractal dimension decreased with the temperature increased. The maximum pore size wa
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