Catalysis Today, Год журнала: 2024, Номер 445, С. 115085 - 115085
Опубликована: Окт. 11, 2024
Язык: Английский
Catalysis Today, Год журнала: 2024, Номер 445, С. 115085 - 115085
Опубликована: Окт. 11, 2024
Язык: Английский
Journal of Molecular Structure, Год журнала: 2024, Номер 1306, С. 137849 - 137849
Опубликована: Фев. 22, 2024
Язык: Английский
Процитировано
13Separation and Purification Technology, Год журнала: 2024, Номер 348, С. 127465 - 127465
Опубликована: Апрель 16, 2024
Язык: Английский
Процитировано
10Crystal Growth & Design, Год журнала: 2024, Номер 24(8), С. 3473 - 3482
Опубликована: Апрель 8, 2024
Adjusting the Lewis acid–base sites in MOF-based catalysts to meet demand for catalytic CO2 chemical fixation is a huge challenge. Herein, highly robust rectilinear {Zn3}-based metal–organic framework of {[Zn3(TNTNB)2(4,4′-bip)(H2O)2]·5DMF·9H2O}n (NUC-80) was generalized from solvothermal condition (H3TNTNB = 1,3,5-tri(3-nitro-4-carboxyphenyl)-2,4,6-trinitrobenzene, 4,4′-bip 4,4′-bipyridine). Activated NUC-80a not only owns large void volume (58%) and two kinds solvent-accessible channels: rhombic-like (ca. 14.24 × 14.57 Å) along axis rectangular-like 11.72 14.48 b axis, but also functionalized by rich metal plentiful nitro groups on its inner surface. Performed experiments confirmed that could efficiently catalyze cycloaddition reaction with epoxides Knoevenagel condensations aldehydes malononitrile under mild conditions high turnover frequency (TOF). Hence, this work provides nitro-functionalized cluster-based nanoporous wide range potential applications such as catalysis, gas adsorption, separation.
Язык: Английский
Процитировано
9Chemical Engineering Journal Advances, Год журнала: 2025, Номер unknown, С. 100734 - 100734
Опубликована: Март 1, 2025
Язык: Английский
Процитировано
1Applied Surface Science, Год журнала: 2024, Номер 654, С. 159459 - 159459
Опубликована: Янв. 20, 2024
Язык: Английский
Процитировано
6Chemistry - A European Journal, Год журнала: 2024, Номер 30(39)
Опубликована: Май 10, 2024
Multimetallic synergistic effects have the potential to improve CO
Язык: Английский
Процитировано
6Journal of Molecular Structure, Год журнала: 2024, Номер 1318, С. 139223 - 139223
Опубликована: Июль 6, 2024
Язык: Английский
Процитировано
6ACS Sustainable Chemistry & Engineering, Год журнала: 2024, Номер 12(42), С. 15432 - 15446
Опубликована: Окт. 7, 2024
The pressing need to lower atmospheric carbon dioxide (CO2) concentration has captivated global focus on point-source capture and transformation of this greenhouse gas chemicals. Purpose-driven pore-functionality engineering in metal–organic frameworks (MOFs) can lead high-temperature humid-condition adsorption efficient cycloaddition CO2 further assist achieving unconventional methodologies for sustainable tandem catalysis. Herein, we develop a [Zn2(COO)4N4] building unit-containing chemo-robust framework with carboxamide functionality, free oxygen atoms, π-electron-rich moieties affixed one-dimensional channels. This 3-fold entangled MOF exhibits strong framework–gas interactions unveils variable-temperature recurrent capture–release cycles even under 75% relative humidity. Interestingly, the CO2/N2 selectivity shows remarkable 82% increase an temperature from 273 K (79) 313 (143), which overpowers several porous adsorbents validates potential flue separation. microporous catalyzes solvent-free recyclable various epoxides pressure. In contrast classical Lewis acid-mediated reaction, controlled experiments, including performance comparison urea functionality-truncated isostructural corroborate unique two-point hydrogen bonding-mediated pathway. suitably oriented moiety within channels acts as bond donor (HBD) site deacetalization–Knoevenagel condensation reaction >99% conversion solvent-less mild conditions 4 h. cooperative role acid–base dual sites substrate activation is comprehensively supported by studies using external additives, fluoro-titration-derived interactions, unfunctionalized framework. To best our knowledge, one-pot acetals having larger molecular dimensions exhibit poor formation α,β-unsaturated dicyanides, demonstrate pore-fitting-mediated size-exclusive
Язык: Английский
Процитировано
6Inorganic Chemistry, Год журнала: 2024, Номер 63(22), С. 10346 - 10357
Опубликована: Май 17, 2024
Metallic atoms within metal–organic framework (MOF) materials exhibit a distinctive and adaptable coordination structure. The three-dimensional (3D) pore configuration of MOFs enables the complete exposure metal active sites, rendering them prevalent in various catalytic reactions. In this study, zinc (Zn) Zn-based MOF materials, characterized by an abundance valence electrons, are utilized for transesterification dimethyl carbonate (DMC). Additionally, introduction zirconium (Zr) effectively addresses susceptibility MOFs' crystal structure to dissolution organic solvents. formulated catalyst, Zn-10%Zr-MOF(300), demonstrates remarkable performance with 91.5% DMC selectivity, 61.9% propylene (PC) conversion, 56.6% yield. Impressively, catalyst maintains its high over five cycles. Results indicate that Zr interacts Zn, forming new bonds enhancing stability. Moreover, electron transfer intensifies alkalinity Zn atoms, overall performance. This research informs development heterogeneous catalysts broadens application scope catalysts.
Язык: Английский
Процитировано
5Journal of Molecular Structure, Год журнала: 2024, Номер 1305, С. 137808 - 137808
Опубликована: Фев. 14, 2024
Язык: Английский
Процитировано
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