Search Results - (Author, Cooperation:A. V. Neimark)

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  1. 1
    H. Sung Cho ; H. Deng ; K. Miyasaka ; Z. Dong ; M. Cho ; A. V. Neimark ; J. Ku Kang ; O. M. Yaghi ; O. Terasaki
    Nature Publishing Group (NPG)
    Published 2015
    Staff View
    Publication Date:
    2015-11-10
    Publisher:
    Nature Publishing Group (NPG)
    Print ISSN:
    0028-0836
    Electronic ISSN:
    1476-4687
    Topics:
    Biology
    Chemistry and Pharmacology
    Medicine
    Natural Sciences in General
    Physics
    Published by:
    http://www.nature.com/

    Latest Papers from Table of Contents or Articles in Press
  2. 2
    Dubinin, M. M. ; Neimark, A. V. ; Serpinskii, V. V.
    Springer
    Published 1992
    Staff View
    ISSN:
    1573-9171
    Keywords:
    adsorption ; adsorption volume ; compressibility ; activated carbon ; benzene
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Chemistry and Pharmacology
    Notes:
    Abstract Compressibility of the adsorbate has been taken into account in calculating the maximum adsorption in micropores. On this basis, an equation has been derived for improvement of the theory of three-dimensional filling of micropores in application to the calculation of micropore volume by the Dubinin-Radushkevich equation. Evaluations for the case of benzene adsorption on activated carbons at ∼20°C have shown that the accounting for adsorbate compressibility leads to corrections of the Dubinin-Radushkevich theory amounting to approximately 10%.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1007/BF00863901

    Articles: DFG German National Licenses
  3. 3
    Staff View
    ISSN:
    1612-1112
    Keywords:
    Column liquid chromatography ; Reversed phase packings ; Polybutadiene coating ; Polymer coatings
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Chemistry and Pharmacology
    Notes:
    Summary Non-wetting viscous liquids such as oligobutadiene prefer “active” sites such as pores during the process of physisorption. Thus, polybutadiene (PBD) coatings on porous silica do not result in a homogeneous polymer film but in an inhomogeneous loading where the bulk polymer is mainly sited in the pores of the silica. An increasing polymer loading leads to increasingly filled pores instead of a thicker polymer film. We cannot exclude the possibility that most of the surface is covered at least with a thin polymer film since the chromatographic behaviour is relatively good for polypeptides, which are highly susceptible to the silanol groups of silica.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1007/BF02278594

    Articles: DFG German National Licenses
  4. 4
    Potapov, V. S. ; Neimark, A. V. ; Anashkin, M. G.
    Springer
    Published 1974
    Staff View
    ISSN:
    1573-8779
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Chemistry and Pharmacology
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1007/BF00747033

    Articles: DFG German National Licenses
  5. 5
    Neimark, A. V. ; Fenelonov, V. B. ; Heifets, L. I.
    Springer
    Published 1976
    Staff View
    ISSN:
    1588-2837
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Chemistry and Pharmacology
    Description / Table of Contents:
    Abstract На основе представлений о механизме переноса влаги в испаряющейся капиллярно-пористой частице проведен анализ распределения осажденного активного компонента. Предложены формулы для доли грубодисперсной фазы в зависимости от параметра осаждения. Расчеты, проведенные с использованием статической модели пористой среды, находятся в удовлетворительном согласии с экспериментальными данными.
    Notes:
    Abstract The distribution of the precipitated active component has been analyzed using the concepts of moisture transfer mechanism for the evaporation of porous materials. Formulas are proposed for the low-dispersity phase, depending on the precipitation parameter. The calculations performed using a statistical porous environment model are in reasonable agreement with the experimental data.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1007/BF02067435

    Articles: DFG German National Licenses
  6. 6
    Staff View
    ISSN:
    1573-9171
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Chemistry and Pharmacology
    Notes:
    Conclusions 1. Pore volume distributions were obtained as a function of radius using the Kelvin method, the Dubinin method, and percolation theory, for MSK silica gel. 2. The t-curve for n-pentane adsorbed on silica gel was obtained. 3. The position of the maximum in the distribution curve calculated using a model based upon percolation theory is virtually identical with the result obtained using the Dubinin method. Percolation theory produces a substantially larger contribution from pores having the largest radii to the total pore volume.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1007/BF00954581

    Articles: DFG German National Licenses