Enhanced Catalytic Performance of Palladium-Based Catalysts Modified With the Dibenzofuran Ligand for Acetylene Hydrochlorination

IF 3.7 2区化学 Q2 CHEMISTRY, APPLIED

Applied Organometallic Chemistry Pub Date : 2024-08-12 DOI:10.1002/aoc.7681

Shahid Ali, Lu Wang, Haijun Yan, Chao Yang, Jide Wang, Hui Sun, Xiaofei Li, Ronglan Wu, Changhai Liang

引用次数: 0

Abstract

A new palladium-based catalyst system modified with dibenzofuran (DBF) was developed for acetylene hydrochlorination. The optimal Pd-DBF/SAC catalyst with the 0.5 wt% Pd loading and the 15 wt% DBF loading exhibits an elevated performance of 99.9% acetylene conversion and 99.9% vinyl chloride selectivity for more than 400 h. Characterization analysis and density functional theory (DFT) simulations revealed that the presence of oxygen-containing DBF species of the Pd-DBF/SAC catalyst prevents the reduction and loss of Pd species, inhibits the carbon deposition and enhances the HCl adsorbability, resulting in superior catalytic activity and stability for acetylene hydrochlorination.

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用二苯并呋喃配体修饰的钯基催化剂在乙炔加氢氯化中的催化性能增强

为乙炔加氢氯化开发了一种用二苯并呋喃（DBF）改性的新型钯基催化剂体系。最佳 Pd-DBF/SAC 催化剂的钯载量为 0.5 wt%，DBF 的载量为 15 wt%，在超过 400 小时的时间内，乙炔转化率达到 99.9%，氯乙烯选择性达到 99.9%。表征分析和密度泛函理论（DFT）模拟显示，Pd-DBF/SAC 催化剂中含氧 DBF 物种的存在可防止 Pd 物种的还原和损失，抑制碳沉积，并提高盐酸的吸附性，从而使乙炔加氢氯化反应具有更高的催化活性和稳定性。

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来源期刊

Applied Organometallic Chemistry 化学-无机化学与核化学

CiteScore

7.80

自引率

10.30%

发文量

408

审稿时长

2.2 months

期刊介绍： All new compounds should be satisfactorily identified and proof of their structure given according to generally accepted standards. Structural reports, such as papers exclusively dealing with synthesis and characterization, analytical techniques, or X-ray diffraction studies of metal-organic or organometallic compounds will not be considered. The editors reserve the right to refuse without peer review any manuscript that does not comply with the aims and scope of the journal. Applied Organometallic Chemistry publishes Full Papers, Reviews, Mini Reviews and Communications of scientific research in all areas of organometallic and metal-organic chemistry involving main group metals, transition metals, lanthanides and actinides. All contributions should contain an explicit application of novel compounds, for instance in materials science, nano science, catalysis, chemical vapour deposition, metal-mediated organic synthesis, polymers, bio-organometallics, metallo-therapy, metallo-diagnostics and medicine. Reviews of books covering aspects of the fields of focus are also published.