Electrocatalytic Properties of Metal Phthalocyanine Tetrasulfonate Intercalated in Metal Layered Simple Hydroxides (Metal: Co, Cu, and Zn)
| Autor: | Séraphin Eyele-Mezui, Philippe Turek, Christine Mousty, Cédric Leuvrey, Nathalie Parizel, Pierre Rabu, Guillaume Rogez, Riadh Bourzami, Christophe Higy, Pierre Vialat |
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| Přispěvatelé: | Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), Institut de Chimie de Clermont-Ferrand (ICCF), Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-SIGMA Clermont (SIGMA Clermont)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Institut de Chimie de Strasbourg, Université de Strasbourg (UNISTRA)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), International Center for Frontier Research in Chemistry (icFRC), Centre National de la Recherche Scientifique (CNRS)-Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Sigma CLERMONT (Sigma CLERMONT), Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS) |
| Rok vydání: | 2015 |
| Předmět: |
Argon
Inorganic chemistry chemistry.chemical_element 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Electrochemistry 01 natural sciences Oxygen Redox 0104 chemical sciences Surfaces Coatings and Films Electronic Optical and Magnetic Materials Metal chemistry.chemical_compound General Energy chemistry visual_art Phthalocyanine visual_art.visual_art_medium [CHIM]Chemical Sciences Physical and Theoretical Chemistry Cyclic voltammetry Neutral ph 0210 nano-technology |
| Zdroj: | Journal of Physical Chemistry C Journal of Physical Chemistry C, 2015, 119, pp.13335-13342. ⟨10.1021/acs.jpcc.5b02985⟩ Journal of Physical Chemistry C, American Chemical Society, 2015, 119, pp.13335-13342. ⟨10.1021/acs.jpcc.5b02985⟩ |
| ISSN: | 1932-7455 1932-7447 |
| Popis: | International audience; A series of hybrid metal (Zn, Cu, and Co) layered simple hydroxides (LSH) functionalized by surfactants, namely, dodecylsulfonate (DS0) or dodecylsulfate (DS–) and by tetrasulfonato metal (Cu, Co)-phthalocyanines, was synthesized by anionic exchange reactions and characterized by ancillary techniques. The electrochemical properties of these compounds were investigated by cyclic voltammetry in phosphate buffer solutions over a wide potential range including that suitable for oxygen reduction. The electroactivity of intralayer metal cations (Cu and Co) was evidenced as a function of the phosphate buffer pH. The redox properties of Co- and Cu-PcTS0 grafted in LSH (Zn, Co, and Cu) were also investigated in neutral pH solution, under argon, air, or O2 atmospheres. Interestingly, these hybrid compounds display an electrocatalytic behavior toward the reduction of oxygen. In particular with CoPcTS0-LSH, a sharp electrocatalytic reduction wave is observed at −0.40 V/Ag-AgCl with an intensity that depends on the oxygen concentration. The formation of a CoPc-O2 grafted species in the presence of oxygen was confirmed by electron paramagnetic resonance spectroscopy. |
| Databáze: | OpenAIRE |
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