Diffusion-Cooperative Model for Charge Transport by Redox-Active Nonconjugated Polymers.
J Am Chem Soc
; 140(3): 1049-1056, 2018 01 24.
Article
em En
| MEDLINE
| ID: mdl-29276830
ABSTRACT
Charge transport processes in nonconjugated redox-active polymers with electrolytes were studied using a diffusion-cooperative model. For the first time, we quantitatively rationalized that the limited Brownian motion of the redox centers bound to the polymers resulted in the 103-4-fold decline of the bimolecular and heterogeneous charge transfer rate constants, which had been unexplained for half a century. As a next-generation design, a redox-active supramolecular system with high physical mobility was proposed to achieve the rate constant as high as in free solution system (>107 M-1 s-1) and populated site density (>1 mol/L).
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01-internacional
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MEDLINE
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En
Ano de publicação:
2018
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Article