Sodium-Ion Selectivity Study of a Crown-Ether-Functionalized PEDOT Analog
Por:
Salinas, Gerardo, Marquez, Ariana Villarroel, Idir, Mael, Shinde, Shekhar, Frontana-Uribe, Bernardo A., Raoux, Matthieu, Lang, Jochen, Cloutet, Eric, Kuhn, Alexander
Publicada:
1 jul 2020
Resumen:
An electropolymerized ion-selective poly-3,4-ethylenedioxythiophene
(PEDOT) analog is presented in this Communication.
Poly-(2-phenyl-15crown-5-(3,4-ethylene-dioxythiophene)-amine)
(PEDOT-Crown15) showed excellent electrochemical stability with a fast
electron transfer (Delta E-p=50 mV). In comparison with unmodified
PEDOT, a faster change from isolating to conducting state was observed.
This is attributed to the formation of a well-ordered internal polymer
matrix, caused by the aniline-Crown15 moiety. In situ electrochemical
conductance measurements in the presence of different monovalent cations
showed high affinity for Na(+)ions, as evidenced by the decrease in the
conductance of the polymer in comparison with K(+)and Li+. This
selectivity is attributed to a limitation of the charge hopping
conductance.
Filiaciones:
Salinas, Gerardo:
Univ Bordeaux, ISM, CNRS, UMR 5255,Bordeaux INP, F-33607 Pessac, France
Marquez, Ariana Villarroel:
Univ Bordeaux, CNRS, LCPO, UMR 5629,Bordeaux INP, F-33615 Pessac, France
Univ Bordeaux, CBMN, CNRS, UMR 5248,Bordeaux INP, F-33600 Pessac, France
Idir, Mael:
Univ Bordeaux, CNRS, LCPO, UMR 5629,Bordeaux INP, F-33615 Pessac, France
Shinde, Shekhar:
Univ Bordeaux, CNRS, LCPO, UMR 5629,Bordeaux INP, F-33615 Pessac, France
Frontana-Uribe, Bernardo A.:
Ctr Conjunto Invest Quim Sustentable UAEM UNAM, Km 14-5 Carretera Toluca Atlacomulco, Toluca 50200, Mexico
UNAM, Inst Quim, Circuito Exterior Ciudad Univ, Cdmx 04510, Mexico
Raoux, Matthieu:
Univ Bordeaux, CBMN, CNRS, UMR 5248,Bordeaux INP, F-33600 Pessac, France
Lang, Jochen:
Univ Bordeaux, CBMN, CNRS, UMR 5248,Bordeaux INP, F-33600 Pessac, France
Cloutet, Eric:
Univ Bordeaux, CNRS, LCPO, UMR 5629,Bordeaux INP, F-33615 Pessac, France
Kuhn, Alexander:
Univ Bordeaux, ISM, CNRS, UMR 5255,Bordeaux INP, F-33607 Pessac, France
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