苯甲醇
催化作用
碳纤维
色散(光学)
酒
氮气
氮原子
兴奋剂
Atom(片上系统)
材料科学
化学
碳原子
无机化学
光化学
有机化学
戒指(化学)
复合数
物理
光电子学
计算机科学
光学
复合材料
嵌入式系统
作者
Fan Xue,Shangpu Zhuang,Jingyue Bi,Mifen Cui,Zhaoyang Fei,Xu Qiao
标识
DOI:10.1021/acs.iecr.4c03656
摘要
The selective oxidation of benzyl alcohol to benzaldehyde is currently difficult to achieve with high benzyl alcohol conversion and high benzaldehyde selectivity simultaneously under mild conditions. Herein, the Fe-based catalysts anchored on nitrogen-doped carbon (x-Fe/NC) were prepared by thermal decomposition of the iron-doped zeolitic imidazolate framework precursors (x-Fe-ZIF). Among the various catalysts with different iron contents (x-Fe/NC), the 2-Fe/NC catalyst showed the best balance of conversion and selectivity, achieving 96.0% conversion of benzyl alcohol and around 98.0% selectivity for benzaldehyde. A range of characterization methods combined with kinetic analysis demonstrated that the high catalytic activity was attributed to the formed Fe–Nx active sites, which can accelerate the adsorption process of reactant molecules, facilitating the oxidation process while minimizing overoxidation to carboxylic acids. Moreover, the 2-Fe/NC catalyst showed excellent recyclability and substrate resistance, indicating its stability and potential for industrial application. This study offers fresh perspectives on the synthesis of effective transition metal-based catalysts and explores their potential applications in organic oxidation reactions.
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