Počet záznamů: 1
Molecular Electrocatalysis for Oxygen Reduction by Cobalt Porphyrins Adsorbed at Liquid/Liquid Interfaces
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SYSNO ASEP 0341539 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Molecular Electrocatalysis for Oxygen Reduction by Cobalt Porphyrins Adsorbed at Liquid/Liquid Interfaces Tvůrce(i) Su, B. (CH)
Hatay, I. (CH)
Trojánek, Antonín (UFCH-W) RID
Samec, Zdeněk (UFCH-W) RID, ORCID
Khoury, T. (FR)
Gros, C. P. (FR)
Barbe, J.-M. (FR)
Daina, A. (CH)
Carrupt, P. A. (CH)
Girault, H. H. (CH)Zdroj.dok. Journal of the American Chemical Society. - : American Chemical Society - ISSN 0002-7863
Roč. 132, č. 8 (2010), s. 2655-2662Poč.str. 8 s. Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova electrocatalysis ; atomic physicochemical parameters ; immiscible electrolyte solution Vědní obor RIV CG - Elektrochemie CEP GA203/07/1257 GA ČR - Grantová agentura ČR OC 177 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy CEZ AV0Z40400503 - UFCH-W (2005-2011) UT WOS 000275117900048 DOI 10.1021/ja908488s Anotace Molecular 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. Pracoviště Ústav fyzikální chemie J.Heyrovského Kontakt Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Rok sběru 2011
Počet záznamů: 1