金属/沸石双功能催化剂在苯的选择性加氢烷基化过程中的金属尺寸效应

IF 4.3 3区 工程技术 Q2 ENGINEERING, CHEMICAL Frontiers of Chemical Science and Engineering Pub Date : 2024-03-20 DOI:10.1007/s11705-024-2406-4
Junjie Li, Chuang Liu, Zhenlong Jia, Yingchun Ye, Dawei Lan, Wei Meng, Jianqiang Wang, Zhendong Wang, Yongfeng Hu, Weimin Yang
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引用次数: 0

摘要

双功能金属/沸石材料是苯直接加氢烷基化为环己基苯的最合适催化剂。该反应的整体催化性能深受氢化作用的影响,而氢化作用又与金属尺寸有关。因此,系统研究苯加氢烷基化过程中的金属尺寸效应至关重要。在这项研究中,我们在中国石化合成材料 1 号沸石上成功合成了不同金属尺寸的 Ru 和 Pd 纳米粒子。我们证明了沸石支撑的 Ru 和 Pd 催化剂在苯加氢烷基化过程中的催化活性与尺寸有关,这可能是由于尺寸引起的氢溢出能力差异造成的。我们的工作为氢烷基化反应提供了新的见解,并为智能设计先进的金属/沸石双功能催化剂开辟了新的途径。
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Metal size effects over metal/zeolite bifunctional catalysts in the selective hydroalkylation of benzene

Bifunctional metal/zeolite materials are some of the most suitable catalysts for the direct hydroalkylation of benzene to cyclohexylbenzene. The overall catalytic performance of this reaction is strongly influenced by the hydrogenation, which is dependent on the metal sizes. Thus, systematically investigating the metal size effects in the hydroalkylation of benzene is essential. In this work, we successfully synthesized Ru and Pd nanoparticles on Sinopec Composition Materials No.1 zeolite with various metal sizes. We demonstrated the size-dependent catalytic activity of zeolite-supported Ru and Pd catalysts in the hydroalkylation of benzene, which can be attributed to the size-induced hydrogen spillover capability differences. Our work presents new insights into the hydroalkylation reaction and may open up a new avenue for the smart design of advanced metal/zeolite bi-functional catalysts.

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来源期刊
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.
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