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Proton Pump for O-2 Reduction Catalyzed by 5,10,15,20-Tetraphenylporphyrinatocobalt(II)
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SYSNO ASEP 0358958 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Proton Pump for O-2 Reduction Catalyzed by 5,10,15,20-Tetraphenylporphyrinatocobalt(II) Title Protonová pumpa v redukci kyslíku katalyzované 5,10,15,20-tetrafenylpofyrinem Co(II) Author(s) Partovi-Nia, R. (CH)
Su, B. (CH)
Li, F. (CH)
Gros, C. P. (FR)
Barbe, J.-M. (FR)
Samec, Zdeněk (UFCH-W) RID, ORCID
Girault, H. H. (CH)Source Title Chemistry - A European Journal. - : Wiley - ISSN 0947-6539
Roč. 15, č. 10 (2009), s. 2335-2340Number of pages 6 s. Language eng - English Country DE - Germany Keywords cobalt ; ferrocenes ; hydrogen peroxide ; oxygen reduction ; proton pump Subject RIV CF - Physical ; Theoretical Chemistry R&D Projects OC 177 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) UT WOS 000264029500015 DOI 10.1002/chem.200801807 Annotation The role of 5,10,15,20-tetra-phenylporphyrinatocobalt(II) ([Co-(tpp)]) as a catalyst on molecular oxygen (O-2) reduction by ferrocene (Fc) and its two derivatives, methylferrocene (DFc) and decamethylferroccric (DMFc) at a polarized waterl 1,2-dichloroethane (DCE) interface has been studied. The water vertical bar DCE interface essentially acts as a proton pump controlled by the Galvani poten tial difference across the interface. driving the proton transfer from water to DCE. [Co(tpp)] catalyzed O-2 reduction by Fc, DFc and DMFc is then followed to produce hydrogen peroxide (H2O2). The catalytic mechanism is similar to that proposed by Fukuzumi et al. for bulk reactions. This interfacial system provides it platform for a very efficient collection of 11,0, by extraction immediately after its formation in DCE to the adjacent water phase, thus decreasing the possibility of degradation and further reaction with ferrocene derivatives. Workplace J. Heyrovsky Institute of Physical Chemistry Contact Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Year of Publishing 2011
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