Metal‐Corrole‐Based Porous Organic Polymers for Electrocatalytic Oxygen Reduction and Evolution Reactions

Abstract

Integrating molecular catalysts into designed frameworks often enables improved catalysis. Compared with porphyrin‐based frameworks, metal‐corrole‐based frameworks have been rarely developed, although monomeric metal corroles are usually more efficient than porphyrin counterparts for the electrocatalytic oxygen reduction reaction (ORR) and oxygen evolution reaction (OER). We herein report on metal‐corrole‐based porous organic polymers (POPs) as ORR and OER electrocatalysts. M‐POPs (M=Mn, Fe, Co, Cu) were synthesized by coupling metal 10‐phenyl‐5,15‐(4‐iodophenyl)corrole with tetrakis(4‐ethynylphenyl)methane. Compared with metal corrole monomers, M‐POPs displayed significantly enhanced catalytic activity and stability. Co‐POP outperformed other M‐POPs by achieving four‐electron ORR with a half‐wave potential of 0.87 V vs. RHE and reaching 10 mA cm−2 OER current density at 340 mV overpotential. This work is unparalleled to develop and explore metal‐corrole‐based POPs as electrocatalysts.

Engineering organic polymers as emerging sustainable materials for powerful electrocatalysts

“…60,61 Halogen-substituted poly-porphyrins, poly-phthalocyanines, and poly-corroles specifically those with F, Cl, and Br at the edge positions, have been widely studied. 62,63 The introduction of halogen substituents helps to adjust the electron density of the polymer. The interaction between the active centres and the intermediates can be appropriately optimized based on the DFT calculations.…”

Ni(II)-Incorporated Ethylene Glycol-Linked Tetraphenyl Porphyrin-Based Covalent Organic Polymer as a Catalyst for Methanol Electrooxidation

“…Yang and his group have reported Ni–Fe-incorporated porphyrin-based porous organic polymer (POP) for oxygen evolution reaction . Cao et al showed OER and ORR activities of metal-corrole-based POP . There are other examples, where researchers have put efforts into designing some noble metal-based catalysts. − In our recent efforts to explore the catalytic activity of porphyrin-based polymers, we have reported a urea oxidation reaction (UOR) and nonenzymatic glucose sensing using metal-incorporated porphyrin-based polymers.…”

Fabrication of a Novel Co/CoO@Fe2V4O13 Composite Catalyst as a Photoanode for Enhanced Photoelectrochemical Water Oxidation

“…[12][13][14][15] For prospective PEC performance, designing and developing a highly effective and stable catalyst is crucial. Various materials as electrocatalysts [16][17][18][19] and photoelectrocatalysts [20] have been explored and optimized to enhance their efficiency using different strategies. A key challenge is to find novel, low-cost, and durable photocatalysts with suitable band positions.…”