Highly Scalable Conversion of Blood Protoporphyrin to Efficient Electrocatalyst for CO2-to-CO Conversion
| Autor: | Matteo Miola, Edmund Welter, Troels Skrydstrup, Kim Daasbjerg, Marcel Ceccato, Xin-Ming Hu, Annette-E. Surkus, Henrik Junge, Steen Uttrup Pedersen, Matthias Beller, Simin Li |
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| Přispěvatelé: | Product Technology |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
(2) reduction
Materials science NANOTUBES CATALYSTS structure‐ CO2 REDUCTION Electrocatalyst CARBON-DIOXIDE chemistry.chemical_compound ELECTROCHEMICAL REDUCTION molecular catalyst activity relationship heat treatment Mechanical Engineering structure-activity relationship HEMIN CO reduction Combinatorial chemistry CO IMMOBILIZATION chemistry Mechanics of Materials SYNTHETIC STRATEGIES PORPHYRIN METAL heterogeneous electrocatalysis Protoporphyrin |
| Zdroj: | Advanced Materials Interfaces, 8(12):2100067. Wiley Miola, M, Li, S, Hu, X-M, Ceccato, M, Surkus, A-E, Welter, E, Pedersen, S U, Junge, H, Skrydstrup, T, Beller, M & Daasbjerg, K 2021, ' Highly Scalable Conversion of Blood Protoporphyrin to Efficient Electrocatalyst for CO 2-to-CO Conversion ', Advanced Materials Interfaces, vol. 8, no. 12, 2100067 . https://doi.org/10.1002/admi.202100067 |
| ISSN: | 2196-7350 |
| Popis: | Electrochemical CO2 reduction to valuable chemicals represents a greenand sustainable approach to close the anthropogenic carbon cycle, but hasbeen impeded by low efficiency and high cost of electrocatalysts. Here, acost-effective hybrid catalyst consisting of hemin (chloroprotoporphyrin IXiron(III)), a product recovered from bovine blood, adsorbed onto commercialVulcan carbon is reported. Upon heat treatment, this material shows significantlyimproved activity and selectivity for CO2 reduction in water whileexhibiting good stability for more than 10 h. The heat treatment leads toconsecutive removal of the axial chlorine atom and decomposition of the ironporphyrin ring, restructuring to form atomic Fe sites. The optimized hybridcatalyst obtained at 900 °C shows near-unity selectivity for reduction of CO2to CO at a small overpotential of 310 mV. The insight into transformation ofadsorbed Fe complexes into single Fe atoms upon heat treatment providesguidance for development of single atom catalysts. |
| Databáze: | OpenAIRE |
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