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Issue 19, 2018
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Interaction between amino-functionalized inorganic nanoshells and acid-autocatalytic reactions

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Abstract

Amino-functionalized inorganic silica nanoshells with a diameter of 511 ± 57 nm are efficiently used as hydrogen ion binders with a base dissociation constant of (1.2 ± 0.1) × 10−4. The hydrogen removal has been shown to produce reaction–diffusion fronts of constant propagation velocity in the autocatalytic chlorite–tetrathionate reaction when it is run in thin planar slices of nanoshell-containing agarose gel to exclude all convection related effects. By controlling the exact amount of amino-functionalized hollow nanospheres in the gel matrix it is possible to finely tune the propagation velocity of the chemical front in the 0.1–10 cm h−1 range. Remarkably, this can be achieved with very low amino-functionalized hollow inorganic nanosphere loadings between 0.1–0.01 (m V−1)%. The front width has also been determined experimentally, which increases by a factor of two with one magnitude decrease in the front velocity.

Graphical abstract: Interaction between amino-functionalized inorganic nanoshells and acid-autocatalytic reactions

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Publication details

The article was received on 14 Feb 2018, accepted on 23 Apr 2018 and first published on 24 Apr 2018


Article type: Paper
DOI: 10.1039/C8CP01053F
Citation: Phys. Chem. Chem. Phys., 2018,20, 13365-13369
  • Open access: Creative Commons BY license
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    Interaction between amino-functionalized inorganic nanoshells and acid-autocatalytic reactions

    E. Lantos, N. P. Das, D. S. Berkesi, D. Dobó, Á. Kukovecz, D. Horváth and Á. Tóth, Phys. Chem. Chem. Phys., 2018, 20, 13365
    DOI: 10.1039/C8CP01053F

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