MXenes as Heterogeneous Thermal Catalysts: Regioselective Anti-Markovnikov Hydroamination of Terminal Alkynes with 10² h^–1 Turnover Frequencies

Journal of the American Chemical Society, Год журнала: 2025, Номер unknown

Опубликована: Янв. 20, 2025

Due to their conductive properties and optoelectronic tunability, MXenes have revolutionized the area of electrocatalysis active materials in supercapacitors. In comparison, there are only a few reports on as thermal catalysts for general organic reactions. Herein, unprecedented catalytic activity Ti3C2 MXene hydroamination alkynes is reported, overcoming limitations poor activity, lack selectivity, stability, which generally encountered solid known so far. case Ti3C2, exhibits almost complete selectivity anti-Markovnikov regioisomer, both aliphatic amines less-reactive aromatic amines. also efficiently catalyzes intramolecular hydroamination, leading formation indol heterocycles. The C-C multiple bonds reaction with atom efficiency that may form C-N from convenient reagents. maximum number sites nanosheets quantified by thermoprogrammed NH3 desorption. measured TOF values order 102 h-1, highest value being 350 h-1 1-hexyne n-butylamine. Therefore, among heterogeneous studied, its per site comparable best reported Density functional theory calculations models indicate cooperation neighboring Ti atoms mechanism. Considering compositional structural versatility MXenes, present findings open door further application other

Язык: Английский

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Revolutionizing hydrogen production and storage: Harnessing the power of MXenes for a greener and sustainable future

Renewable and Sustainable Energy Reviews, Год журнала: 2025, Номер 216, С. 115654 - 115654

Опубликована: Апрель 3, 2025

Язык: Английский

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Two-dimensional Mo2C: An efficient promoter for hydrogen storage and release from a liquid organic hydrogen carrier

International Journal of Hydrogen Energy, Год журнала: 2023, Номер 48(33), С. 12309 - 12320

Опубликована: Янв. 2, 2023

Язык: Английский

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AgPd nanocages sandwiched between a MXene nanosheet and PDA layer for photothermally improved catalytic activity and antibacterial properties

Dalton Transactions, Год журнала: 2023, Номер 52(8), С. 2335 - 2344

Опубликована: Янв. 1, 2023

In this work, a MXene@AgPd/polydopamine (PDA) nanosheet with excellent photothermal conversion efficiency was successfully synthesized by simple redox-oxidative polymerization method. Interestingly, AgPd bimetallic nanocrystals sandwiched between MXene and PDA layer have cage-like nanostructure, which is favorable for high catalytic antibacterial performance. Importantly, the MXene@AgPd/PDA exhibits good activity reduction of 4-nitrophenol (1.2 min-1 mg-1) dynamics can be improved about 1.2 times under NIR (near-infrared light, 808 nm, 2.5 W cm-2) irradiation. As shell well protected, retained more than 90% after 6 cycles. addition, due to presence Ag component, exhibited against both Gram-negative (E. coli) Gram-positive (S. aureus) bacteria. Under near-infrared light irradiation, its further enhanced effect.

Язык: Английский

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Metal–organic framework–derived CeO2 catalyst supported by carboxyl–functionalized MXene for oxidative coupling of benzyl alcohol with aniline

Molecular Catalysis, Год журнала: 2023, Номер 552, С. 113689 - 113689

Опубликована: Ноя. 15, 2023

Язык: Английский

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