Recent Advances in Porphyrin-Based Systems for Electrochemical Oxygen Evolution Reaction

International Journal of Molecular Sciences, Journal Year: 2022, Volume and Issue: 23(11), P. 6036 - 6036

Published: May 27, 2022

Oxygen evolution reaction (OER) plays a pivotal role in the development of renewable energy methods, such as water-splitting devices and use Zn–air batteries. First-row transition metal complexes are promising catalyst candidates due to their excellent electrocatalytic performance, rich abundance, cheap price. Metalloporphyrins class representative high-efficiency complex catalysts owing structural functional characteristics. However, OER based on porphyrin systems previously have been paid little attention comparison well-described oxygen reduction (ORR), hydrogen reaction, CO2 reaction. Recently, porphyrin-based systems, including both small molecules porous polymers for electrochemical OER, emerging. Accordingly, this review summarizes recent advances OER. Firstly, water oxidation is discussed, which shows various methodologies achieve catalysis from homogeneous heterogeneous processes. Subsequently, catalytic bifunctional electrocatalysis ORR demonstrated. Finally, future briefly prospected.

Language: Английский

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Dyes as efficient and reusable organocatalysts for the synthesis of cyclic carbonates from epoxides and CO₂

Green Chemistry, Journal Year: 2023, Volume and Issue: 25(23), P. 9744 - 9759

Published: Jan. 1, 2023

The functionalised RhB-EtOH-I dye was identified as an efficient and reusable organocatalyst for the conversion of CO 2 epoxides into cyclic carbonates under mild conditions.

Language: Английский

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Nanoscale Metal–Organic Frameworks and Nanoscale Coordination Polymers: From Synthesis to Cancer Therapy and Biomedical Imaging

ACS Applied Bio Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Feb. 21, 2024

Recently, there has been significant interest in nanoscale metal-organic frameworks (NMOFs) characterized by ordered crystal structures and coordination polymers (NCPs) featuring amorphous structures. These arise from the interactions between inorganic metal ions or clusters organic ligands. Their advantages, such as ability to tailor composition structure, efficiently encapsulate diverse therapeutic imaging agents within porous frameworks, inherent biodegradability, surface functionalization capability, position them promising carriers biomedical fields. This review provides an overview of synthesis modification strategies employed for NMOFs NCPs, along with their applications cancer treatment biological imaging. Finally, future directions challenges associated utilization NCPs diagnosis are also discussed.

Language: Английский

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Donor–Acceptor-Conjugated Porous Polymer for Photopromoted N–H Formylation of Secondary Amines: Efficient In Situ N-Heterocyclic Carbene Catalysis in Radical Manner

ACS Catalysis, Journal Year: 2024, Volume and Issue: 14(6), P. 3889 - 3899

Published: Feb. 26, 2024

The photogenerated reactive oxygen species (ROSs) in N-heterocyclic carbene (NHC)-based heterogeneous photocatalysis hold promise for addressing the challenge of fostering Breslow-derived radicals. In this study, two conjugated porous polymers (CPPs), namely, Im-PCPP-1 and Im-PCPP-2, decorated with donor–acceptor-type porphyrin imidazole/imidazolium moieties, are synthesized via Suzuki–Miyaura coupling reaction. Importantly, ionization imidazole monomer effectively tunes push–pull effect D–A building blocks band structure Im-PCPPs. On basis, Im-PCPP-2 ionized imidazolium exhibits good catalytic activity toward oxidative N-formylation diverse secondary amines through cooperation photoredox situ NHC catalysis a radical manner, where acetaldehyde serves as carbon source formylation. Experimental calculation results suggest that multiple ROS play crucial roles: hydroxide OH– base to generate NHC; hydroxyl ·OH hydrogen atom transfer abstractors produce aza-Breslow-derived radicals partners cross-coupling; singlet 1O2 oxidant convert into cyclic peroxide. It is noteworthy photochemical process has achieved efficient conversion its derivatives high-value-added N-formamides.

Language: Английский

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Sustainable development in the removal and photocatalytic reduction of heavy metals in wastewaters using environmentally friendly and health benign Porphyrin-based Metal-Organic frameworks

Separation and Purification Technology, Journal Year: 2023, Volume and Issue: 322, P. 124214 - 124214

Published: May 30, 2023

Language: Английский

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Fe(III)-Anchored Porphyrin-Based Nanoporous Covalent Organic Frameworks for Green Synthesis of Cyclic Carbonates from Olefins and CO₂ under Atmospheric Pressure Conditions

Inorganic Chemistry, Journal Year: 2023, Volume and Issue: 62(32), P. 13058 - 13068

Published: Aug. 3, 2023

The utilization of carbon dioxide (CO2) as a C1 source coupled with olefins, readily accessible feedstocks, offers dual advantages mitigating atmospheric and green synthesis valuable chemicals. In this regard, herein we demonstrate the application Fe(III)-anchored porphyrin-based covalent organic framework (P-COF) promising recyclable catalyst for one-step generation cyclic carbonates (CCs), value-added commodity chemicals from olefins CO2, under mild pressure conditions. Moreover, one-pot was applied to transform various (aliphatic aromatic) into corresponding CCs in good yield selectivity. addition, Fe(III)@P-COF showed recyclability durability multiple reuse cycles without losing its catalytic activity. Notably, strategy presents an eco-friendly, atom-economic alternative conventional two-step process requiring epoxides. This work represents rare demonstration porphyrin COF-catalyzed CC by utilizing available at dioxide.

Language: Английский

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A functional cobalt-organic framework constructed by triphenylamine tricarboxylate: Detect nitroaromatics by fluorescence sensing and UV-shielding

Talanta, Journal Year: 2023, Volume and Issue: 256, P. 124319 - 124319

Published: Feb. 2, 2023

Language: Английский

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Mixed-metal Zr/Ti MIL-173 porphyrinic metal–organic frameworks as efficient photocatalysts towards solar-driven overall water splitting

Journal of Materials Chemistry A, Journal Year: 2022, Volume and Issue: 10(46), P. 24938 - 24950

Published: Jan. 1, 2022

A hydrolytically stable metal–organic framework containing Ti( iv ) and porphyrinic linkers allows a photoinduced charge separation process for the photocatalytic overall water splitting reaction.

Language: Английский

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Vanadium(V^IV)–Porphyrin-Based Metal–Organic Frameworks for Synergistic Bimetallic Activation of Inert C(sp³)–H Bonds

ACS Applied Materials & Interfaces, Journal Year: 2022, Volume and Issue: 14(2), P. 2794 - 2804

Published: Jan. 6, 2022

Activation and selective functionalization of inert C(sp3)–H bonds remain one the most challenging tasks in current synthetic chemistry. Herein, by decorating vanadium(VIV)–porphyrin into metal–organic frameworks (MOFs) to stabilize active tertbutyl peroxide radical, we reported a new approach accomplish bond activation synergistic bimetallic strategy via hydrogen atom transfer process under mild conditions. The stabilized radical VIV–porphyrin-based MOFs abstracted from for direct oxidization transformation utilizing environmentally friendly oxygen. Taking advantage high stability Zr6 clusters, Zr–MOF was recyclable six times without conversion efficiency decrease. From this foundation, {Mn3(μ3-O)} cluster nodes with potential unsaturated coordinated sites were introduced replace realizing pre-activation substrates through interaction between Mn substrates. effect VIV–porphyrin dramatically promoted product selectivity functionalization.

Language: Английский

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Superior photocatalytic activity of porphyrin-immobilized on graphene oxide for oxidation of alkenes under visible light

Inorganic Chemistry Communications, Journal Year: 2025, Volume and Issue: unknown, P. 114020 - 114020

Published: Feb. 1, 2025

Language: Английский

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