Iron and Cobalt Corroles in Solution and on Carbon Nanotubes as Molecular Photocatalysts for Hydrogen Production by Water Reduction
Herein, we report the use of cobalt and iron corrole complexes as catalysts of H2O reduction to generate H2. Electro- and photocatalysis has been used in the case of dissolved corroles for water reduction with inspiring results. Carbon nanotubes doped with corroles were used as photo-electrochemical...
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| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_18673880_v9_n16_p3259_MoralesVasquez |
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todo:paper_18673880_v9_n16_p3259_MoralesVasquez2023-10-03T16:33:49Z Iron and Cobalt Corroles in Solution and on Carbon Nanotubes as Molecular Photocatalysts for Hydrogen Production by Water Reduction Morales Vásquez, M.A. Hamer, M. Neuman, N.I. Tesio, A.Y. Hunt, A. Bogo, H. Calvo, E.J. Doctorovich, F. electrocatalysis hydrogen metallocorroles photocatalysis water splitting Carbon Carbon nanotubes Catalysis Catalysts Cobalt Cobalt compounds Electrocatalysis Hydrogen Iron compounds Nanotubes Photocatalysis Polypyrroles Reduction Yarn Catalytic efficiencies Electrochemical catalyst Iron corrole complexes Metallocorroles Molecular catalysts Orders of magnitude Turnover frequency Water splitting Hydrogen production Herein, we report the use of cobalt and iron corrole complexes as catalysts of H2O reduction to generate H2. Electro- and photocatalysis has been used in the case of dissolved corroles for water reduction with inspiring results. Carbon nanotubes doped with corroles were used as photo-electrochemical catalysts, with very low overpotential values and increased hydrogen production; incredibly high turnover numbers and turnover frequencies of approximately 107 and 105, respectively, were achieved. Through this last process, we were able to obtain 1 mmol of H2 by using minuscule amounts of catalyst, in the order of picograms. The reactions can be performed in water, without the need for organic solvents. Remarkably, the photo-electrochemical catalytic efficiency was increased by five orders of magnitude if the molecular catalysts were adsorbed onto carbon nanotubes. © 2017 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_18673880_v9_n16_p3259_MoralesVasquez |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
electrocatalysis hydrogen metallocorroles photocatalysis water splitting Carbon Carbon nanotubes Catalysis Catalysts Cobalt Cobalt compounds Electrocatalysis Hydrogen Iron compounds Nanotubes Photocatalysis Polypyrroles Reduction Yarn Catalytic efficiencies Electrochemical catalyst Iron corrole complexes Metallocorroles Molecular catalysts Orders of magnitude Turnover frequency Water splitting Hydrogen production |
| spellingShingle |
electrocatalysis hydrogen metallocorroles photocatalysis water splitting Carbon Carbon nanotubes Catalysis Catalysts Cobalt Cobalt compounds Electrocatalysis Hydrogen Iron compounds Nanotubes Photocatalysis Polypyrroles Reduction Yarn Catalytic efficiencies Electrochemical catalyst Iron corrole complexes Metallocorroles Molecular catalysts Orders of magnitude Turnover frequency Water splitting Hydrogen production Morales Vásquez, M.A. Hamer, M. Neuman, N.I. Tesio, A.Y. Hunt, A. Bogo, H. Calvo, E.J. Doctorovich, F. Iron and Cobalt Corroles in Solution and on Carbon Nanotubes as Molecular Photocatalysts for Hydrogen Production by Water Reduction |
| topic_facet |
electrocatalysis hydrogen metallocorroles photocatalysis water splitting Carbon Carbon nanotubes Catalysis Catalysts Cobalt Cobalt compounds Electrocatalysis Hydrogen Iron compounds Nanotubes Photocatalysis Polypyrroles Reduction Yarn Catalytic efficiencies Electrochemical catalyst Iron corrole complexes Metallocorroles Molecular catalysts Orders of magnitude Turnover frequency Water splitting Hydrogen production |
| description |
Herein, we report the use of cobalt and iron corrole complexes as catalysts of H2O reduction to generate H2. Electro- and photocatalysis has been used in the case of dissolved corroles for water reduction with inspiring results. Carbon nanotubes doped with corroles were used as photo-electrochemical catalysts, with very low overpotential values and increased hydrogen production; incredibly high turnover numbers and turnover frequencies of approximately 107 and 105, respectively, were achieved. Through this last process, we were able to obtain 1 mmol of H2 by using minuscule amounts of catalyst, in the order of picograms. The reactions can be performed in water, without the need for organic solvents. Remarkably, the photo-electrochemical catalytic efficiency was increased by five orders of magnitude if the molecular catalysts were adsorbed onto carbon nanotubes. © 2017 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim |
| format |
JOUR |
| author |
Morales Vásquez, M.A. Hamer, M. Neuman, N.I. Tesio, A.Y. Hunt, A. Bogo, H. Calvo, E.J. Doctorovich, F. |
| author_facet |
Morales Vásquez, M.A. Hamer, M. Neuman, N.I. Tesio, A.Y. Hunt, A. Bogo, H. Calvo, E.J. Doctorovich, F. |
| author_sort |
Morales Vásquez, M.A. |
| title |
Iron and Cobalt Corroles in Solution and on Carbon Nanotubes as Molecular Photocatalysts for Hydrogen Production by Water Reduction |
| title_short |
Iron and Cobalt Corroles in Solution and on Carbon Nanotubes as Molecular Photocatalysts for Hydrogen Production by Water Reduction |
| title_full |
Iron and Cobalt Corroles in Solution and on Carbon Nanotubes as Molecular Photocatalysts for Hydrogen Production by Water Reduction |
| title_fullStr |
Iron and Cobalt Corroles in Solution and on Carbon Nanotubes as Molecular Photocatalysts for Hydrogen Production by Water Reduction |
| title_full_unstemmed |
Iron and Cobalt Corroles in Solution and on Carbon Nanotubes as Molecular Photocatalysts for Hydrogen Production by Water Reduction |
| title_sort |
iron and cobalt corroles in solution and on carbon nanotubes as molecular photocatalysts for hydrogen production by water reduction |
| url |
http://hdl.handle.net/20.500.12110/paper_18673880_v9_n16_p3259_MoralesVasquez |
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