Directional coupling in spatially distributed nanoreactors

Silica based hollow nanospheres filled with a reactant solution act as nanoreactors. A close packed ensemble of the nanoshells comprise a porous medium through which a chemical front can propagate. The front velocity decreases as the chemical signal, in the shape of a reaction-diffusion front, is tr...

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Bibliographic Details
Published in:RSC advances 2019-12, Vol.9 (69), p.4745-4749
Main Authors: Das, Nirmali Prabha, Dobó, Dorina G, Berkesi, Dániel, Kukovecz, Ákos, Horváth, Dezs, Tóth, Ágota
Format: Article
Language:English
Subjects:
Chemistry
Front velocity
Nanoparticles
Nanospheres
Organic chemistry
Porous media
Silicon dioxide
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Summary:Silica based hollow nanospheres filled with a reactant solution act as nanoreactors. A close packed ensemble of the nanoshells comprise a porous medium through which a chemical front can propagate. The front velocity decreases as the chemical signal, in the shape of a reaction-diffusion front, is transmitted from one sphere to the other due to the high curvature at the contact points. Experiments reveal that front propagation occurs through the cavity of the nanoshells because surface activity of filled nanoparticles itself cannot support chemical front across the medium. Chemical front propagates through a closed-packed cluster of nanoreactors made of hollow nanoshells filled with reactant solution.
ISSN:2046-2069
2046-2069
DOI:10.1039/c9ra09758a