Facile Fabrication of LaFeO3 Supported Pd Nanoparticles as Highly Effective Heterogeneous Catalyst for Suzuki–Miyaura Coupling Reaction

IF 2.6 4区材料科学 Q2 CHEMISTRY, MULTIDISCIPLINARY

ChemNanoMat Pub Date : 2024-10-27 DOI:10.1002/cnma.202400450

Ying Sun, Juanjuan Yin, Ying Wang, Ping Zhang, Lingjuan Ma, Jisen Li

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Abstract

Supported Pd catalysts have been widely studied due to their enormous potential as candidates for heterogeneous Suzuki–Miyaura coupling reactions. However, the sintering and low activity of active sites still remain challenges. A vesicle-shaped LaFeO₃-supported Pd catalyst (I−Pd/LaFeO₃) was successfully fabricated using the impregnation method and tested for the Suzuki–Miyaura coupling reaction. Compared to P−Pd/LaFeO₃ prepared with photo-deposition and Pd/Al₂O₃ prepared with impregnation, the I−Pd/LaFeO₃ catalyst exhibits significantly higher catalytic activity, stability, and reusability. The chemical composition and electron states of different Pd-based catalysts were well studied based on various characterizations and the results indicated that the excellent performance of I−Pd/LaFeO₃ can be attributed to its unique nanostructure and the strong interactions between LaFeO₃ and palladium nanoparticles. The impregnation method and the choice of the LaFeO₃ support show a great influence on the electronic properties of Pd species, their reducibility, and, consequently, their reaction behavior. This unique LaFeO₃ supported Pd catalyst provided an environmentally friendly heterogeneous method for the Suzuki–Miyaura coupling reaction.

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简便制备 LaFeO3 Supported Pd 纳米粒子，作为铃木-宫浦偶联反应的高效异构催化剂

负载型钯催化剂作为非均相Suzuki-Miyaura偶联反应的候选物具有巨大的潜力，因此得到了广泛的研究。然而，烧结和活性位点的低活性仍然是一个挑战。采用浸渍法制备了一种囊状的LaFeO3负载型钯催化剂（I−Pd/LaFeO3），并对其进行了Suzuki-Miyaura偶联反应测试。与光沉积法制备的P−Pd/LaFeO3和浸渍法制备的Pd/Al2O3相比，I−Pd/LaFeO3催化剂具有更高的催化活性、稳定性和可重复使用性。研究了不同钯基催化剂的化学组成和电子态，结果表明，I−Pd/LaFeO3的优异性能归因于其独特的纳米结构和LaFeO3与钯纳米粒子之间的强相互作用。浸渍方法和LaFeO3载体的选择对钯的电子性质、还原性以及反应行为有很大影响。这种独特的LaFeO3负载Pd催化剂为Suzuki-Miyaura偶联反应提供了一种环境友好的多相方法。

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来源期刊

ChemNanoMat Energy-Energy Engineering and Power Technology

CiteScore

6.10

自引率

2.60%

发文量

236

期刊介绍： ChemNanoMat is a new journal published in close cooperation with the teams of Angewandte Chemie and Advanced Materials, and is the new sister journal to Chemistry—An Asian Journal.