期刊
CELLULOSE
卷 19, 期 2, 页码 517-522出版社
SPRINGER
DOI: 10.1007/s10570-011-9649-1
关键词
Nanopores; Reaction kinetics; Salt-induced enhancement; Cellulose; Periodate-oxidation
资金
- NSERC
- FPInnovations
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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