Synthesis and evaluation of Cu(0)/UiO-66 metal-organic frameworks as heterogeneous nanocatalysts for esterification of aryl aldehydes

IF 4.7 2区化学 Q2 CHEMISTRY, PHYSICAL Journal of Molecular Structure Pub Date : 2025-09-05 Epub Date: 2025-04-19 DOI:10.1016/j.molstruc.2025.142441

Chou-Yi Hsu , Anjan Kumar , Ahmed M. Naglah , Yashwantsinh Jadeja , Suhas Ballal , Shaker Al-Hasnaawei , Abhayveer Singh , T. Krithiga , Subhashree Ray , Bhavik Jain

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Abstract

The research centered on the development of Cu(0)/UiO-66, a zirconium-based metal-organic framework known for its nanoporous structure and significant surface area. This material was synthesized via a solvothermal method, incorporating preformed copper nanoparticles directly into the framework. Detailed characterization was performed using a range of analytical techniques, such as inductively coupled plasma (ICP), powder X-ray diffraction (PXRD), scanning electron microscopy (SEM), thermogravimetric analysis (TGA), energy-dispersive X-ray spectroscopy (EDS), and Brauer-Emmett-Teller (BET). Notably, Cu(0)/UiO-66 demonstrated outstanding catalytic efficiency in the esterification of aryl aldehydes under gentle conditions. Furthermore, the catalyst showed excellent reusability, maintaining high levels of activity and yield across at least three consecutive cycles.

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Cu(0)/UiO-66金属有机骨架在芳醛酯化反应中的合成及评价

该研究集中于Cu(0)/UiO-66的开发，这是一种锆基金属有机骨架，以其纳米孔结构和显着的表面积而闻名。这种材料是通过溶剂热法合成的，将预制的铜纳米颗粒直接结合到框架中。使用一系列分析技术进行详细表征，如电感耦合等离子体（ICP），粉末x射线衍射（PXRD），扫描电子显微镜（SEM），热重分析（TGA），能量色散x射线光谱（EDS）和Brauer-Emmett-Teller （BET）。值得注意的是，Cu(0)/UiO-66在温和条件下对芳醛的酯化反应表现出优异的催化效率。此外，该催化剂表现出优异的可重复使用性，在至少三个连续循环中保持高水平的活性和产量。

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来源期刊

Journal of Molecular Structure 化学-物理化学

CiteScore

7.10

自引率

15.80%

发文量

2384

审稿时长

45 days

期刊介绍： The Journal of Molecular Structure is dedicated to the publication of full-length articles and review papers, providing important new structural information on all types of chemical species including: • Stable and unstable molecules in all types of environments (vapour, molecular beam, liquid, solution, liquid crystal, solid state, matrix-isolated, surface-absorbed etc.) • Chemical intermediates • Molecules in excited states • Biological molecules • Polymers. The methods used may include any combination of spectroscopic and non-spectroscopic techniques, for example: • Infrared spectroscopy (mid, far, near) • Raman spectroscopy and non-linear Raman methods (CARS, etc.) • Electronic absorption spectroscopy • Optical rotatory dispersion and circular dichroism • Fluorescence and phosphorescence techniques • Electron spectroscopies (PES, XPS), EXAFS, etc. • Microwave spectroscopy • Electron diffraction • NMR and ESR spectroscopies • Mössbauer spectroscopy • X-ray crystallography • Charge Density Analyses • Computational Studies (supplementing experimental methods) We encourage publications combining theoretical and experimental approaches. The structural insights gained by the studies should be correlated with the properties, activity and/ or reactivity of the molecule under investigation and the relevance of this molecule and its implications should be discussed.