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Статья
2017

Impacts reveal and quantify monolayer adsorption on single alumina particles


Qianqi LinQianqi Lin, Richard G. ComptonRichard G. Compton
Российский электрохимический журнал
https://doi.org/10.1134/S1023193517090087
Abstract / Full Text

A particle impact method is used to quantify adsorption of redox active species on single insulating particles by simulation of individual spike transient, circumventing the complexity of measurements with ensembles of particles. For catechol, anthraquinone and chloranil molecules and the ferrocene moiety of poly(vinylferrocene) adsorbed on alumina, the surface coverages are found to be (3.0 ± 0.9), (1.5 ± 1.4), (2.7 ± 1.7) and (2.1 ± 0.7) × 10–10 mol cm–2, and the charge diffusion coefficients are found as (2.5 ± 0.5), (7.9 ± 4.0), (0.4 ± 0.2) and (2.4 ± 0.8) × 10–6 cm2 s–1, respectively.

Author information
  • Department of Chemistry, Physical and Theoretical Chemistry Laboratory, Oxford University, South Parks Road, Oxford, OX1 3QZ, UKQianqi Lin & Richard G. Compton
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