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Erschienen in: Cellulose 2/2012

01.04.2012

Salt-induced acceleration of chemical reactions in cellulose nanopores

verfasst von: Md. Nur Alam, Miro Antal, Alvaro Tejado, Theo G. M. van de Ven

Erschienen in: Cellulose | Ausgabe 2/2012

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Abstract

Chemical reactions in charged nanopores, such as present in cellulose fibers, can be accelerated by adding an inert salt, that does not participate in the reaction. Due to a Donnan-like equilibrium between ions inside and outside the pores, the concentration of co-ions in the nanopores (having a charge of the same sign as that of the pore wall), is lower than the concentration in the bulk. The co-ion concentration in pores can be increased by adding an inert salt, which shifts the Donnan equilibrium. The increased concentration of reactants in pores results in faster reaction kinetics. Reactions of cellulose with periodate confirm these predictions.

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Metadaten
Titel
Salt-induced acceleration of chemical reactions in cellulose nanopores
verfasst von
Md. Nur Alam
Miro Antal
Alvaro Tejado
Theo G. M. van de Ven
Publikationsdatum
01.04.2012
Verlag
Springer Netherlands
Erschienen in
Cellulose / Ausgabe 2/2012
Print ISSN: 0969-0239
Elektronische ISSN: 1572-882X
DOI
https://doi.org/10.1007/s10570-011-9649-1

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