Su, BinHatay, İmrenTrojanek, AntoninSamec, ZdenekKhoury, TonyGros, Claude P.Barbe, Jean-MichelDaina, AntoineCarrupt, Pierre-AlainGirault, Hubert H.2020-03-262020-03-262010Su, B., Hatay, İ., Trojanek, A., Samec, Z., Khoury, T., Gros, C. P., Barbe, J. M., Daina, A., Carrupt, P. A., Girault, H. H., (2010). Molecular Electrocatalysis for Oxygen Reduction by Cobalt Porphyrins Adsorbed at Liquid/Liquid Interfaces. Journal of the American Chemical Society, 132(8), 2655-2662. doi: org/10.1021/ja908488s.0002-7863https://dx.doi.org/10.1021/ja908488shttps://hdl.handle.net/20.500.12395/25080Molecular electrocatalysis for oxygen reduction at a polarized water/1,2-dichloroethane (DCE) interface was studied, involving aqueous protons, ferrocene (Fc) in DCE and amphiphilic cobalt porphyrin catalysts adsorbed at the interface. The catalyst, (2,8,13,17-tetraethyl-3,7,12,18-tetramethyl-5-p-aminophenylporphyrin) cobalt(II) (CoAP), functions like conventional cobalt porphyrins, activating 02 via coordination by the formation of a superoxide structure. Furthermore, due to the hydrophilic nature of the aminophenyl group, CoAP has a strong affinity for the water/DCE interface as evidenced by lipophilicity mapping calculations and surface tension measurements, facilitating the protonation of the CoAP-O(2) complex and its reduction by ferrocene. The reaction is electrocatalytic as its rate depends on the applied Galvani potential difference between the two phases.en10.1021/ja908488sinfo:eu-repo/semantics/openAccessArticle13282655266220131825Q1WOS:000275117900048Q1