Image from Google Jackets

Oxygen reduction on oxide/polypyrrole composite electrodes: effect of doping anions

Tipo de material: TextoTextoSeries ; Electrochimica Acta, 50(6), p.1369-1376, 2005Trabajos contenidos:
  • Nguyen Conga, H
  • El Abbassia, K
  • Gautierb, J.L
  • Chartiera, P
Tema(s): Recursos en línea: Resumen: Multilayered composite electrodes on glassy carbon, GC, having the structure GC/PPy/PPy(Ox)/PPy, with PPy the polypyrrole and Ox a mixed valence oxide of transition metals, exhibit high reactivity and stability towards the oxygen reduction reaction (orr), when the orr proceeds electrocatalytically on the oxide particles dispersed throughout the inner layer, PPy(Ox). However the nature and concentration of the doping anions, A, of PPy have a profound effect on the resulting orr currents, due to their effects on the conductivity and morphology of the PPy layers. The paper shows and discusses these effects in the case of the composite electrode with Ox = Cu1.4Mn1.6O4 and A = Cl-, ClO4-, NO3-, PF6- and SO4 2-, in acid solution (pH 2.2). Optimal conditions were encountered with Cl-.
Tags from this library: No tags from this library for this title. Log in to add tags.
Star ratings
    Average rating: 0.0 (0 votes)
Holdings
Item type Current library Collection Call number Status Date due Barcode
Documentos solicitados Documentos solicitados CICY Documento préstamo interbibliotecario Ref1 B-7778 (Browse shelf(Opens below)) Available

Multilayered composite electrodes on glassy carbon, GC, having the structure GC/PPy/PPy(Ox)/PPy, with PPy the polypyrrole and Ox a mixed valence oxide of transition metals, exhibit high reactivity and stability towards the oxygen reduction reaction (orr), when the orr proceeds electrocatalytically on the oxide particles dispersed throughout the inner layer, PPy(Ox). However the nature and concentration of the doping anions, A, of PPy have a profound effect on the resulting orr currents, due to their effects on the conductivity and morphology of the PPy layers. The paper shows and discusses these effects in the case of the composite electrode with Ox = Cu1.4Mn1.6O4 and A = Cl-, ClO4-, NO3-, PF6- and SO4 2-, in acid solution (pH 2.2). Optimal conditions were encountered with Cl-.

There are no comments on this title.

to post a comment.