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090 _aB-7778
245 1 0 _aOxygen reduction on oxide/polypyrrole composite electrodes: effect of doping anions
490 0 _vElectrochimica Acta, 50(6), p.1369-1376, 2005
520 3 _aMultilayered 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-.
650 1 4 _aMIXED VALENCE OXIDE
650 1 4 _aPOLYPYRROLE
650 1 4 _aCOMPOSITE ELECTRODE
650 1 4 _aOXYGEN ELECTROREDUCTION
650 1 4 _aDOPING ANIONS
700 1 2 _aNguyen Conga, H.
700 1 2 _aEl Abbassia, K.
700 1 2 _aGautierb, J.L.
700 1 2 _aChartiera, P.
856 4 0 _uhttps://drive.google.com/file/d/1e9fxVoR8Xaf9OR4htDP-T2_azMj6RJfo/view?usp=drivesdk
_zPara ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx
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