Conţinutul numărului revistei |
Articolul precedent |
Articolul urmator |
864 0 |
SM ISO690:2012 STRĂISTARI, Tatiana, HARDRE, Renaud Y., FIZE, Jennifer, SHOVA, Sergiu, GIORGI, Michel, REGLIER, Marius, ARTERO, Vincent, ORIO, Maylis. Hydrogen Evolution Reactions Catalyzed by a Bis(thiosemicarbazone) Cobalt Complex: An Experimental and Theoretical Study. In: Chemistry - A European Journal, 2018, vol. 24, pp. 8779-8786. ISSN 0947-6539. DOI: https://doi.org/10.1002/chem.201801155 |
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Chemistry - A European Journal | |
Volumul 24 / 2018 / ISSN 0947-6539 | |
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DOI: https://doi.org/10.1002/chem.201801155 | |
Pag. 8779-8786 | |
Rezumat | |
The synthesis and characterization of a dinuclear bis(thiosemicarbazone) cobalt complex [Co2L2(NCS)2] is reported. This complex exhibits significant catalytic activity for hydrogen production in DMF by using triethylammonium (Et3NHBF4) as the proton source. Cyclic voltammetry data allowed a maximum turnover frequency of 130 s−1 for 1 m proton concentration to be determined. The catalytic nature of the process and the production of dihydrogen were confirmed by gas analysis during controlled potential electrolysis experiments. Quantum chemical calculations show that the complex displays a ligand-assisted metal-centered reactivity and supports a catalytic mechanism involving ligand-based reduction and protonation steps followed by metal-centered processes. |
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Cuvinte-cheie cobalt, Hydrogen evolution reaction, Quantum chemistry |
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