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  • 1
    Electronic Resource
    Electronic Resource
    Investigations of water film on the surface of activated carbons by thermal analysis (1992)
    s.l. : American Chemical Society
    Langmuir 8 (1992), S. 229-232 
    Details
    ISSN: 1520-5827
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/la00037a042
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  • 2
    Electronic Resource
    Electronic Resource
    An isotherm equation for adsorption on fractal surfaces of heterogeneous porous materials (1989)
    s.l. : American Chemical Society
    Langmuir 5 (1989), S. 1431-1433 
    Details
    ISSN: 1520-5827
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/la00090a032
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  • 3
    Electronic Resource
    Electronic Resource
    Studies of the surface composition of phenyl and cyanopropyl bonded phases under reversed-phase liquid chromatographic conditions using alkanoate and perfluoroalkanoate esters (1991)
    s.l. : American Chemical Society
    Analytical chemistry 63 (1991), S. 2849-2852 
    Details
    ISSN: 1520-6882
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ac00024a008
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  • 4
    Electronic Resource
    Electronic Resource
    Thermodynamics of gas adsorption on fractal surfaces of heterogeneous microporous solids (1990)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 92 (1990), S. 7589-7595 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: Thermodynamic equations are derived for physical adsorption of gases and vapors on fractal surfaces of heterogeneous microporous solids. The influence of surface geometry on gas adsorption on a microporous solid is studied by analyzing the dependence of the differential molar enthalpy ΔH, the immersion enthalpy ΔHim, and the differential molar entropy ΔS on the fractal dimension D, which is used to characterize the surface irregularity. It is shown that −ΔH, −ΔHim, −ΔS, and the average adsorption potential A¯ increase as the fractal dimension of the surface accessible for adsorption increases. The dependence of these thermodynamic quantities on the fractal dimension D is attributed to the fact that the fraction of small micropores in microporous solids increases as the fractal dimension D increases.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.458196
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  • 5
    Electronic Resource
    Electronic Resource
    Multilayer adsorption from multicomponent liquid mixtures on solid surfaces (1981)
    Springer
    Monatshefte für Chemie 112 (1981), S. 175-185 
    Details
    ISSN: 1434-4475
    Keywords: Adsorption on heterogeneous surfaces ; Multicomponent liquid mixtures ; Multilayer liquid adsorption
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Es wird die Mehrschichtadsorption auf homogenen und heterogenen Oberflächen diskutiert. Bei der Berechnung der Molbrüche der Komponenten der ersten adsorbierten Schicht wurden Heterogenitäts-Effekte berücksichtigt. Die Modellrechnungen wurden an ternären flüssigen Mischungen vorgenommen.
    Notes: Abstract Multilayer adsorption of multicomponent liquid mixtures on homogeneous and heterogeneous solid surfaces is discussed. Heterogeneity effects of the adsorbent surface have been taken into account in calculation of mole fractions of the components in the first adsorbed layer. The model calculations, illustrating multilayer and heterogeneity effects, have been performed for adsorption of ternary liquid mixtures.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00911084
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  • 6
    Electronic Resource
    Electronic Resource
    A new isotherm equation for single-solute adsorption from dilute solutions on energetically heterogeneous solids (1983)
    Springer
    Monatshefte für Chemie 114 (1983), S. 711-715 
    Details
    ISSN: 1434-4475
    Keywords: Single-solute adsorption ; Adsorption from dilute solution ; Gene-ralized Langmuir isotherm ; Phenol adsorption from dilute aqueous solutions ; Adsorption on activated carbon
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Es wurde eine neue Isothermengleichung für die Adsorption aus verdünnten Einzelkomponentenlösungen auf energetisch heterogenen Festkörpern vorgeschlagen. Diese Gleichung schließt alle bisherigen Isothermengleichungen in sich ein, die Verallgemeinerungen der einfachenLangmuir-Isotherme für Adsorption auf heterogenen Festkörpern sind. Es wurden Daten der Adsorption von Phenol aus verdünnten Wasserlösungen auf aktivierte Kohle unter Verwendung der neuen Gleichung untersucht.
    Notes: Abstract A new isotherm equation is proposed for describing single-solute adsorption from dilute solution on energetically heterogeneous solids. This equation comprises all isotherm equations being an extension of simpleLangmuir isotherm to single-solute adsorption on heterogeneous solids. The phenol adsorption data from dilute aqueous solutions on activated carbon are studied by using this new equation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01134184
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  • 7
    Electronic Resource
    Electronic Resource
    Application of a partially mobile model of monolayer adsorption to multilayer phenomena (1979)
    Springer
    Monatshefte für Chemie 110 (1979), S. 601-606 
    Details
    ISSN: 1434-4475
    Keywords: BET adsorption model ; Multilayer adsorption ; Partially mobile adsorption
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Zwei Mehrschicht-Modelle, bei der Annahme einer partiell mobilen Adsorption der Erst-Schicht, und desBET, bzw.Kim-Oh (KO) Mechanismus für die Ausbildung höherer Schichten, werden diskutiert. Die theoretischen Mehrschicht-Adsorptionsisothermen, die diesen Modellen entsprechen, werden für verschiedene Grade von Mobilität der ersten Schicht berechnet.
    Notes: Abstract Two multilayer adsorption models are discussed, assuming partially mobile adsorption in the first layer, and theBET orKim-Oh (KO) mechanisms for formation of higher layers. The theoretical multilayer adsorption isotherms corresponding to these models have been calculated for differing degrees of mobility of the first layer.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00938364
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  • 8
    Electronic Resource
    Electronic Resource
    A model of adsorption at liquid-solid interface involving association in the bulk phase (1982)
    Springer
    Monatshefte für Chemie 113 (1982), S. 669-680 
    Details
    ISSN: 1434-4475
    Keywords: Adsorption on heterogeneous surfaces ; Association ; Adsorption from solutions
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Es wird ein Adsorptionsmodell binärer, flüssiger Mischungen an homogenen und heterogenen Oberflächen von Feststoffen unter Beachtung der Assoziation eines der Bestandteile in der Flüssigkeitsphase diskutiert. Mit der aus dem Oberflächenüberschuß abgeleiteten Gleichung wurden entsprechende Modellberechnungen durchgeführt, die die mit Assoziation und Heterogenität verbundenen Effekte illustrieren. Die Gleichung wurde für die experimentellen Daten der Alkoholadsorption aus Benzol undn-Heptan an Kieselgel überprüft.
    Notes: Abstract A model of monolayer adsorption of binary liquid mixtures on homogeneous and heterogeneous solid surfaces involving association of one component in the bulk phase is discussed. Suitable model calculations, illustrating association and heterogeneity effects, have been performed according to an equation derived for adsorption excess. This equation has been examined by using the experimental data of adsorption of alcohols from benzene andn-heptane on silica gel.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00809005
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  • 9
    Electronic Resource
    Electronic Resource
    Physical adsorption of gases on energetically heterogeneous solids I. GeneralizedLangmuir equation and its energy distribution (1984)
    Springer
    Monatshefte für Chemie 115 (1984), S. 997-1012 
    Details
    ISSN: 1434-4475
    Keywords: Gas adsorption ; Heterogeneous solids
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Es wird eine generalisierteLangmuir-Gleichung zur Beschreibung der einlagigen Adsorption eines einzelnen Gases auf heterogenen Feststoffen beschrieben. Die speziellen Fälle dieser Gleichung sind:Langmuir-Freundlich-, Tóth- undFreundlich-Typ der Adsorptionsisotherme. Die Energieverteilung, die dieser Gleichung entspricht, gibt alle Typen einer einfachen Verteilung wieder, z. B. eine symmetrische Verteilung, eine abfallende exponentielle Verteilung und asymmetrische Verteilungen mit Erweiterung in die Richtung von niedriger oder hoher Adsorptionsenergie.
    Notes: Abstract A generalizedLangmuir equation is proposed for describing the monolayer adsorption of single gases on heterogeneous solids. The special cases of this equation are:Langmuir-Freundlich, Tóth andFreundlich type adsorption isotherms. The energy distribution function corresponding to this equation produces all types of simple energy distributions, i.e., symmetrical distribution, decreasing exponential distributions and asymmetrical distributions showing widening in the directions of low and high adsorption energies.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00798768
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  • 10
    Electronic Resource
    Electronic Resource
    Physical adsorption of gases on energetically heterogeneous solids II. Theoretical extension of a generalizedLangmuir equation and its application for analysing adsorption data (1984)
    Springer
    Monatshefte für Chemie 115 (1984), S. 1013-1038 
    Details
    ISSN: 1434-4475
    Keywords: Gas adsorption ; Multilayer adsorption ; Adsorption data analysis ; Heterogeneous solids
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Die generalisierteLangmuir-Gleichung, die in der 1. Mitt. beschrieben wurde, wird für die einlagige Adsorption mit lateralen Wechselwirkungen und für die viellagige Adsorption auf heterogenen Oberflächen mit einer Zufallsverteilung von Adsorptionsplätzen erweitert. Es werden neue Differentialfunktionen zur Untersuchung der mathematischen und physikalischen Eigenschaften dieser Gleichung eingeführt, die sich als fruchtbringend zur Interpretation von Adsorptionsdaten erweisen. Diese Funktionen werden zur Untersuchung von drei Gasadsorptionssystemen aus der Literatur herangezogen.
    Notes: Abstract The generalizedLangmuir equation proposed in part I is extended to monolayer adsorption with lateral interactions and to multilayer adsorption on heterogeneous surfaces with random distribution of adsorption sites. New differential functions, useful for interpreting the adsorption data, are introduced to study the mathematical and physical properties of this equation. These functions are applied to study three gas adsorption systems available from the literature.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00798769
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