Three-Dimensional Phthalocyanine Metal-Catecholates for High Electrochemical Carbon Dioxide Reduction
| Autor: | Mathieu S. Prévot, M. Angeles Monge, Roc Matheu, Omar M. Yaghi, Enrique Gutiérrez-Puebla, Christian S. Diercks, Joohoon Kang, Nikita Hanikel, Xiaokun Pei, Bing Zhang, Peidong Yang |
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| Přispěvatelé: | IRCELYON-Catalyse Hétérogène pour la Transition Energétique (CATREN), Institut de recherches sur la catalyse et l'environnement de Lyon (IRCELYON), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS) |
| Rok vydání: | 2019 |
| Předmět: |
Inorganic chemistry
chemistry.chemical_element General Chemistry Carbon black Overpotential 010402 general chemistry Electrochemistry 01 natural sciences Biochemistry Redox Catalysis 0104 chemical sciences chemistry.chemical_compound Colloid and Surface Chemistry Affordable and Clean Energy chemistry Chemical Sciences Phthalocyanine [CHIM]Chemical Sciences Cobalt ComputingMilieux_MISCELLANEOUS Faraday efficiency Electrochemical reduction of carbon dioxide |
| Zdroj: | Journal of the American Chemical Society, vol 141, iss 43 Journal of the American Chemical Society Journal of the American Chemical Society, American Chemical Society, 2019, 141 (43), pp.17081-17085. ⟨10.1021/jacs.9b09298⟩ |
| ISSN: | 1520-5126 0002-7863 |
| DOI: | 10.1021/jacs.9b09298 |
| Popis: | The synthesis of a new anionic 3D metal-catecholate framework, termed MOF-1992, is achieved by linking tetratopic cobalt phthalocyanin-2,3,9,10,16,17,23,24-octaol linkers with Fe3(-C2O2-)6(OH2)2 trimers into an extended framework of roc topology. MOF-1992 exhibits sterically accessible Co active sites together with charge transfer properties. Cathodes based on MOF-1992 and carbon black (CB) display a high coverage of electroactive sites (270 nmol cm-2) and a high current density (-16.5 mA cm-2; overpotential, -0.52 V) for the CO2 to CO reduction reaction in water (faradaic efficiency, 80%). Over the 6 h experiment, MOF-1992/CB cathodes reach turnover numbers of 5800 with turnover frequencies of 0.20 s-1 per active site. |
| Databáze: | OpenAIRE |
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