Zeolite-encaged gold catalysts for the oxidative condensation of furfural

IF 4.3 3区工程技术 Q2 ENGINEERING, CHEMICAL

Frontiers of Chemical Science and Engineering Pub Date : 2024-06-25 DOI:10.1007/s11705-024-2443-z

Weijie Li, Mingyang Gao, Bin Qin, Xin Deng, Landong Li

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Abstract

The oxidative condensation between renewable furfural and fatty alcohols is a crucial avenue for producing high-quality liquid fuels and valuable furan derivatives. The selectivity control in this reaction process remains a significant challenge. Herein, we report the strategy of confining well dispersed gold species within ZSM-5 structure to construct highly active Au@ZSM-5 zeolite catalysts for the oxidative condensation of furfural. Characterization results and spectroscopy analyses demonstrate the efficient encapsulation of isolated and cationic Au clusters in zeolite structure. Au@ZSM-5(K) catalyst shows remarkable performance with 69.7% furfural conversion and 90.2% furan-2-acrolein selectivity as well as good recycle stability. It is revealed that the microstructure of ZSM-5 zeolite can significantly promote oxidative condensation activity through confinement effects. This work presents an explicit example of constructing zeolite encaged noble metal catalysts toward targeted chemical transformations.

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用于糠醛氧化缩合的沸石包金催化剂

可再生糠醛与脂肪醇之间的氧化缩合反应是生产高质量液体燃料和有价值的呋喃衍生物的重要途径。该反应过程中的选择性控制仍是一项重大挑战。在此，我们报告了将分散良好的金物种封闭在 ZSM-5 结构中以构建高活性 Au@ZSM-5 沸石催化剂用于糠醛氧化缩合反应的策略。表征结果和光谱分析证明了孤立的阳离子金簇在沸石结构中的有效封装。Au@ZSM-5(K) 催化剂性能优异，糠醛转化率达 69.7%，呋喃-2-丙烯醛选择性达 90.2%，并且具有良好的回收稳定性。研究结果表明，ZSM-5 沸石的微结构可通过限制效应显著提高氧化缩合活性。这项研究为构建沸石包裹贵金属催化剂以实现有针对性的化学转化提供了一个明确的实例。

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来源期刊

Frontiers of Chemical Science and Engineering ENGINEERING, CHEMICAL-

CiteScore

7.60

自引率

6.70%

发文量

868

审稿时长

1 months

期刊介绍： Frontiers of Chemical Science and Engineering presents the latest developments in chemical science and engineering, emphasizing emerging and multidisciplinary fields and international trends in research and development. The journal promotes communication and exchange between scientists all over the world. The contents include original reviews, research papers and short communications. Coverage includes catalysis and reaction engineering, clean energy, functional material, nanotechnology and nanoscience, biomaterials and biotechnology, particle technology and multiphase processing, separation science and technology, sustainable technologies and green processing.