Enhancing Vinyl Acetate Hydroformylation with La-Decorated Rh/TiO2 Nanotubes Catalysts.

IF 2.3 3区化学 Q3 CHEMISTRY, PHYSICAL

Chemphyschem Pub Date : 2025-04-07 DOI:10.1002/cphc.202401016

Hongyuan Chuai, Baolin Zhu, Shoumin Zhang, Weping Huang

引用次数: 0

Abstract

The influence of La promoter on the catalytic performance of Rh nanoparticles supported on TiO2 nanotubes (TNTs) in the hydroformylation of vinyl acetate was investigated. The catalysts were characterized using ICP-MS, BET, XRD, SEM, TEM, XPS, FT-IR, and H2/CO TPD. The results indicated that an effect attributed to the formation of LaOx-Rh active sites during the catalytic reaction. The optimized Rh0.25-La/TNTs catalyst (0.14 wt.% Rh, 0.29 wt.% La) achieved a high vinyl acetate conversion of 89%, an aldehyde selectivity of 66%, and a remarkable TOF of 5796 h-1.

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研究了 La 促进剂对以 TiO2 纳米管（TNTs）为载体的 Rh 纳米粒子在乙酸乙烯酯加氢甲酰化反应中催化性能的影响。使用 ICP-MS、BET、XRD、SEM、TEM、XPS、FT-IR 和 H2/CO TPD 对催化剂进行了表征。结果表明，催化反应过程中 LaOx-Rh 活性位点的形成产生了影响。经过优化的 Rh0.25-La/TNTs 催化剂（0.14 wt.% Rh，0.29 wt.% La）的醋酸乙烯酯转化率高达 89%，醛选择性为 66%，TOF 为 5796 h-1。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Chemphyschem 化学-物理：原子、分子和化学物理

CiteScore

4.60

自引率

3.40%

发文量

425

审稿时长

1.1 months

期刊介绍： ChemPhysChem is one of the leading chemistry/physics interdisciplinary journals (ISI Impact Factor 2018: 3.077) for physical chemistry and chemical physics. It is published on behalf of Chemistry Europe, an association of 16 European chemical societies. ChemPhysChem is an international source for important primary and critical secondary information across the whole field of physical chemistry and chemical physics. It integrates this wide and flourishing field ranging from Solid State and Soft-Matter Research, Electro- and Photochemistry, Femtochemistry and Nanotechnology, Complex Systems, Single-Molecule Research, Clusters and Colloids, Catalysis and Surface Science, Biophysics and Physical Biochemistry, Atmospheric and Environmental Chemistry, and many more topics. ChemPhysChem is peer-reviewed.