Graphitic Aza‐Fused π‐Conjugated Networks: Construction, Engineering, and Task‐Specific Applications

Advanced Materials, Год журнала: 2021, Номер 34(14)

Опубликована: Ноя. 5, 2021

2D π-conjugated networks linked by aza-fused units represent a pivotal category of graphitic materials with stacked nanosheet architectures. Extensive efforts have been directed at their fabrication and application since the discovery covalent triazine frameworks (CTFs). Besides cores, tricycloquinazoline hexaazatriphenylene linkages are further introduced to tailor structures properties. Diverse related developed rapidly, thorough outlook is necessitated unveil structure-property-application relationships across multiple subcategories, which guide design toward enhanced task-specific performance. Herein, structure types development including CTFs, quinazoline networks, introduced. Advanced synthetic strategies coupled characterization techniques provide powerful tools engineer properties tune associated behaviors in corresponding applications. Case studies areas gas adsorption, membrane-based separation, thermo-/electro-/photocatalysis, energy storage then addressed, focusing on correlation between structure/property engineering optimization performance, particularly preferred features each specific field. In last section, underlying challenges opportunities construction this emerging promising material discussed.

Язык: Английский

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Direct couplings of secondary alcohols with primary alkenyl alcohols to α-alkylated ketones via a tandem transfer hydrogenation/hydrogen autotransfer process catalyzed by a metal-ligand bifunctional iridium catalyst

Journal of Catalysis, Год журнала: 2022, Номер 413, С. 365 - 373

Опубликована: Июнь 25, 2022

Язык: Английский

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A recyclable covalent triazine framework-supported iridium(iii) terpyridine complex for the acceptorless dehydrogenative coupling of o-aminobenzyl alcohols with ketones to form quinolines

Materials Chemistry Frontiers, Год журнала: 2022, Номер 6(9), С. 1228 - 1235

Опубликована: Янв. 1, 2022

A complex Ir(tpy)@CTF, which is synthesized by the coordinative immobilization of [Ir(tpy)Cl 3 ] on a covalent triazine framework, was proven to be recycle catalyst for acceptorless dehydrogenative coupling o -aminobenzyl alcohols with ketones.

Язык: Английский

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Metallic active-site engineering: a bridge between covalent triazine frameworks and high-performance catalysts

Journal of Materials Chemistry A, Год журнала: 2022, Номер 11(5), С. 2070 - 2091

Опубликована: Дек. 13, 2022

Engineering metallic active sites (nano-scale/low-coordination/isolated metal and oxide/sulfide) into CTFs is an effective strategy for high-performance large-scale industrial catalysis.

Язык: Английский

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Iron-nickel alloy particles with N-doped carbon “armor” as a highly selective and long-lasting catalyst for the synthesis of N-benzylaniline molecules

Nano Research, Год журнала: 2023, Номер 17(4), С. 2308 - 2319

Опубликована: Сен. 8, 2023

Язык: Английский

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Efficient integration of covalent triazine frameworks (CTFs) for augmented photocatalytic efficacy: A review of synthesis, strategies, and applications

Heliyon, Год журнала: 2024, Номер 10(11), С. e32202 - e32202

Опубликована: Июнь 1, 2024

Heterogeneous photocatalysis emerges as an exceptionally appealing technological avenue for the direct capture, conversion, and storage of renewable solar energy, facilitating generation sustainable ecologically benign fuels a spectrum other pertinent applications. nanocomposites, incorporating Covalent Triazine Frameworks (CTFs), exhibit wide-ranging light absorption, well-suited electronic band structures, rapid charge carrier mobility, ample resource availability, commendable chemical robustness, straightforward synthetic routes. These attributes collectively position them highly promising photocatalysts with applicability in diverse fields, including but not limited to production photocatalytic decomposition environmental contaminants. As field through hybridization CTFs undergoes expansion, there is pressing substantive need systematic retrospective analysis forward-looking evaluation elucidate pathways enhancing performance. This comprehensive review commences by directing attention methodologies creation composite materials. And then it delves into thorough exploration strategies geared towards augmenting performance, encompassing introduction electron donor–acceptor (D-A) units, heteroatom doping, defect Engineering, architecture Heterojunction optimization morphology. Following this, systematically elucidates applications primarily centered around efficient hydrogen, reduction carbon dioxide photocatalysis, degradation organic pollutants. Ultimately, discourse turns unresolved challenges prospects further advancement, offering valuable guidance potent harnessing high-efficiency processes.

Язык: Английский

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Regioselective N-alkylation of 2-amino-azoles with alcohols for the synthesis of 2-N-(alkylamino)azoles catalyzed by a ruthenium complex bearing a functional ligand

Journal of Catalysis, Год журнала: 2023, Номер 426, С. 21 - 29

Опубликована: Июнь 24, 2023

Язык: Английский

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Manganese‐Catalyzed Mono‐N‐Methylation of Aliphatic Primary Amines without the Requirement of External High‐Hydrogen Pressure

Angewandte Chemie, Год журнала: 2024, Номер 136(13)

Опубликована: Фев. 1, 2024

Abstract The synthesis of mono‐ N ‐methylated aliphatic primary amines has traditionally been challenging, requiring noble metal catalysts and high‐pressure H 2 for achieving satisfactory yields selectivity. Herein, we developed an approach the selective coupling methanol amines, without hydrogen, using a manganese‐based catalyst. Remarkably, up to 98 % with broad substrate scope were achieved at low catalyst loadings. Notably, due weak base‐catalyzed alcoholysis formamide intermediates, our novel protocol not only obviates addition but also prevents side secondary ‐methylation, supported by control experiments density functional theory calculations.

Язык: Английский

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Iridium complex immobilized on covalent triazine framework derived from biomass as a recyclable catalyst for the dehydrogenation of formic acid

Journal of Catalysis, Год журнала: 2024, Номер 437, С. 115634 - 115634

Опубликована: Сен. 1, 2024

Язык: Английский

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N‐Monomethylation of Amines with Methanol by Syndiotactic Poly(aminostyrene)‐supported Palladium Nanoparticle Catalyst

Asian Journal of Organic Chemistry, Год журнала: 2021, Номер 10(8), С. 2165 - 2169

Опубликована: Июнь 23, 2021

Abstract Palladium nanocatalyst supported on dimethylamino‐functionalized syndiotactic polystyrene (Pd@ s PS‐NMe 2 ) showed high activity and selectivity for the N ‐monomethylation of various primary amines using methanol as methylation reagent under air. The excellent catalytic performance could be associated with ultrafine palladium nanoparticles amine‐adsorbing capacity catalyst. Pd@ catalyst was highly robust, easily recovered by filtration reused more than ten times without decrease in selectivity.

Язык: Английский

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