| Autor: |
Ghahramanzadehasl, Hadi, Bansal, Deepak, Cardenas Morcoso, Drialys, Boscher, Nicolas D. |
| Předmět: |
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| Zdroj: |
ChemElectroChem; Oct2024, Vol. 11 Issue 19, p1-9, 9p |
| Abstrakt: |
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. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
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