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Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/18983

Title: Electro-reduction of Oxygen to Water Mediated by Stable Glassy Carbon Electrodes Modified by Co(II)-porphyrins with Voluminous Meso-Substituent
Authors: Marin, A.V.
Aguirre, Maria J.
Muena, J. P.
Dehaen, W.
MAES, Wouter
Ngo, Thien H.
Ramirez, G.
Arevalo, Maria C.
Issue Date: 2015
Publisher: ESG
Abstract: Glassy carbon electrodes were modified by physisorption of two different Co(II)-porphyrins, specifically designed and synthesized to study the effect of the substitution pattern (and the resulting steric hindrance) on the electrocatalytic behavior for a characteristic inner-sphere reaction such as the reduction of oxygen. In spite of the change in morphology caused by a change in the relative positions of the meso substituents, they showed practically the same behavior toward the electro-reduction of O-2. In both cases, water was obtained as the main product. The modified electrodes were also active toward the electro-reduction of hydrogen peroxide. Both electrodes were found stable for more than a month upon exposure to air and the current for the electro-reduction remained practically the same.
Notes: [Marin, A., V] Univ Tarapaca, Fac Ingn Ind Inform & Sistemas, Arica, Chile. [Aguirre, M. J.; Muena, J. P.] Univ Santiago Chile, Fac Quim & Biol, Dept Quim Mat, Estn Cent, Santiago, Chile. [Dehaen, W.; Maes, W.; Ngo, Thien H.] Katholieke Univ Leuven, Dept Chem, Mol Design & Synth, B-3001 Leuven, Belgium. [Maes, W.] Hasselt Univ, Inst Mat Res IMO IMOMEC, DSOS, B-3590 Diepenbeek, Belgium. [Ngo, Thien H.] Natl Inst Mat Sci, Int Ctr Mat Nanoarchitecton MANA, ICYS, Tsukuba, Ibaraki 3050044, Japan. [Ramirez, G.] Pontificia Univ Catolica Chile, Fac Quim, Dept Quim Inorgan, Santiago, Chile. [Arevalo, M. C.] Univ La Laguna, Fac Quim, Dept Quim Fis, Tenerife 38071, Spain.
URI: http://hdl.handle.net/1942/18983
ISI #: 000354782200022
ISSN: 1452-3981
Category: A1
Type: Journal Contribution
Validation: ecoom, 2016
Appears in Collections: Research publications

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