| Autor: |
Hadi Ghahramanzadehasl, Deepak Bansal, Drialys Cardenas Morcoso, Nicolas D. Boscher |
| Jazyk: |
angličtina |
| Rok vydání: |
2024 |
| Předmět: |
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| Zdroj: |
ChemElectroChem, Vol 11, Iss 19, Pp n/a-n/a (2024) |
| Druh dokumentu: |
article |
| ISSN: |
2196-0216 |
| DOI: |
10.1002/celc.202400258 |
| Popis: |
Abstract The development of highly conjugated metalloporphyrin assemblies is a crucial step to improve their catalytic activity for optimal energy conversion processes. Herein, di‐thienyl substituted nickel(II) porphyrin is used to form a highly conjugated porphyrin structure. The resulting porphyrin‐based conjugated polymer catalyst exhibited exceptional oxygen evolution reaction “OER” performances, featuring a low onset overpotential of 266 mV and high reaction kinetics (Tafel slope of 69.9 mV/dec) under alkaline pH conditions, achieving a current density of 4.5 mA/cm2. The remarkable OER catalytic activity of porphyrin‐based conjugated polymer catalyst is attributed to the enhancement of the conjugation, which occurs through a unique process involving direct fusion of the porphyrins followed by thienyl bridging of the fused porphyrin tapes, ultimately leading to the establishment of a highly cross‐linked porphyrinic network. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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