Unveiling the structure of polytetraruthenated nickel porphyrin by raman spectroelectrochemistry
dc.creator | Ferreira, Luís Marcos Cerdeira | |
dc.creator | Grasseschi, Daniel | |
dc.creator | Santos, Mauro Sérgio Ferreira | |
dc.creator | Martins, Paulo Roberto | |
dc.creator | Ferreira, Luís Marcos Cerdeira | |
dc.creator | Gutz, Ivano Gebhardt Rolf | |
dc.creator | Ferreira, Ana Maria da Costa | |
dc.creator | Araki, Koiti | |
dc.creator | Toma, Henrique Eisi | |
dc.creator | Angnes, Lucio | |
dc.date.accessioned | 2024-07-22T19:40:45Z | |
dc.date.available | 2024-07-22T19:40:45Z | |
dc.date.issued | 2015-03-26 | |
dc.description.abstract | The structure of polytetraruthenated nickel porphyrin was unveiled for the first time by electrochemistry, Raman spectroelectrochemistry, and a hydroxyl radical trapping assay. The electrocatalytic active material, precipitated on the electrode surface after successive cycling of [NiTPyP{Ru(bipy)2Cl}4]4+ species in strong aqueous alkaline solution (pH 13), was found to be a peroxo-bridged coordination polymer. The electropolymerization process involves hydroxyl radicals (as confirmed by the characteristic set of DMPO/•OH adduct EPR peaks) as reaction intermediates, electrocatalytically generated in the 0.80–1.10 V range, that induce the formation of Ni–O–O–Ni coordination polymers, as evidenced by Raman spectroelectrochemistry and molecular modeling studies. The film growth is halted above 1.10 V due to the formation of oxygen gas bubbles. | |
dc.identifier.citation | FERREIRA, Luís M. C. et al. Unveiling the structure of polytetraruthenated nickel porphyrin by raman spectroelectrochemistry. Langmuir, Washington, v. 31, n. 14, p. 4351-4360, 2015. DOI: 10.1021/acs.langmuir.5b00250. Disponível em: https://pubs.acs.org/doi/10.1021/acs.langmuir.5b00250. Acesso em: 5 jul. 2024. | |
dc.identifier.doi | 10.1021/acs.langmuir.5b00250 | |
dc.identifier.issn | 0743-7463 | |
dc.identifier.issn | e- 1520-5827 | |
dc.identifier.uri | https://pubs.acs.org/doi/10.1021/acs.langmuir.5b00250 | |
dc.language.iso | eng | |
dc.publisher.country | Estados unidos | |
dc.publisher.department | Instituto de Química - IQ (RMG) | |
dc.rights | Acesso Restrito | |
dc.title | Unveiling the structure of polytetraruthenated nickel porphyrin by raman spectroelectrochemistry | |
dc.type | Artigo |
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