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- W2015372408 abstract "A re-examination of polyaniline (PANI) under illumination with visible light reveals the occurrence of two kinds of photo-induced currents: (i) the slowly-rising and decaying currents show the same dependence on electrode potential and concentration of the redox species, eg O2, Fe(CN)3−4−6, or S2Ȯ-8, as the dark currents; (ii) faster-rising transient photocurrents are observed only in the potential range where polyaniline is electrically conducting. In contrast to previous investigations, we attribute the slowly-rising photo-induced currents to photothermally increased convection at the PANI electrode and the electrocatalytic behavior of PANI, as opposed to photoelectrochemical energy conversion with PANI. The transient photocurrents are discussed in terms of a qualitative molecular orbital model. In the second part of the paper, the electrocatalytic characteristics of PANI are investigated with rotating disk electrodes and related to the behavior under illumination. It is shown that PANI is, in comparison to Pt, a superior electrocatalyst for peroxodisulfate reduction or for the reduction and oxidation of Fe(CN)ṫ6 in acidic media." @default.
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- W2015372408 date "1991-01-01" @default.
- W2015372408 modified "2023-09-26" @default.
- W2015372408 title "Electrocatalytic behavior of polyaniline in the dark and under illumination" @default.
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- W2015372408 doi "https://doi.org/10.1016/0013-4686(91)85263-7" @default.
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