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封装的异质单原子催化剂,用于线性选择性1-奥克的化

Muhammad Kamran¹, Salman Qadir¹, Cuizhen Bai¹

¹Center for Carbon-Neutrality Catalysis and Engineering, Institute of Carbon-Neutral Technology and Shenzhen Public Service Platform for Carbon Capture, Utilization and Storage Technology, Shenzhen Polytechnic University, Shenzhen, 518055, P. R. China.

Small (Weinheim an der Bergstrasse, Germany)

|October 16, 2025

概括

高度稳定,封装的单原子催化剂 (SACs) 在高级烯的基形成过程中表现出极好的线性选择性. 这些先进的催化剂可以实现高转换率和高转换率,以实现1 octene水合甲基化.

科学领域:

催化剂是一种催化剂.
材料科学材料科学材料科学
有机化学有机化学

背景情况:

单原子催化剂 (SAC) 在催化中提供了独特的优势,因为它们的最大原子利用率.
高级olefins的水合成型,特别是对于线性产品,仍然是工业化学中的一个重大挑战.
不同质的SAC在选择性甲基化反应方面还没有得到充分的研究.

研究的目的:

开发和研究封装异质单原子催化剂 (SACs) 用于高级烯酸的线性选择性基形成.
评估这些新型SAC的活性,稳定性和选择性.
为了比较SACs与子纳米粒子催化剂的性能.

主要方法:

在MFI的岩道内合成封装的SACs.
在现场激活和用1-octene作为模型基质的水合甲基化反应.
频谱学表征 (例如,EXAFS,XANES) 来确认原子分散和封装.
绩效评估包括转换,线性到分支比 (l/b),营业额 (TON) 和营业额频率 (TOF).

主要成果:

实用合成,高度稳定和高度活跃的封装SACs (0.07重%Rh₁@MFI-K) 已成功准备.
催化剂实现了高于99%的1 octene转化,具有异常的线性选择性 (l/b>99).
优化的SAC (0.07 wt%Rh₁@MFI-K-0.8) 显示了>1073 TON和TOF>89 h^{-1,超过了四倍的TON和28.5倍的线性选择性.}
谱光学数据证实了MFI热带岩通道内的原子封装.

结论:

封装的异质SAC对于高级olefins的线性选择性基形成是非常有效的.
热带石通道内的原子分散和封装对于实现高活性和选择性至关重要.
这项工作为开发用于选择性氨酸功能化的先进催化剂提供了一个有希望的途径.

关键词:

一个八度的基甲基化.货币金融机构-地质石线性阿尔德化物一个的合成合成.一个原子催化剂.

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