Issue 2, 2024

Mesoporous CeO2-supported ultrafine PdCu nanoparticle catalyst for selective hydrogenation of alkynols

Abstract

Selective hydrogenation of alkynol compounds to produce high value-added enols is an important reaction in the fine chemical industry. The construction of selective hydrogenation catalysts for alkynols is challenging because the alkynyl group is prone to over hydrogenation and the selectivity in the hydrogenation is always low. Herein, a simple sacrificial template strategy was designed to prepare mesoporous CeO2, on which ultrafine and highly-dispersed bimetallic PdCu nanoparticles were anchored, obtaining the PdCu@CeO2 catalyst. Introducing non-precious metallic Cu can improve the selectivity of precious metal Pd catalysts for the selective hydrogenation of alkynols through electronic and geometric modulation. The obtained PdCu@CeO2 catalyst showed high selectivity (99%) and good recyclability for the selective hydrogenation of the probe compound propynol ethoxylate under mild conditions. The PdCu@CeO2 catalyst also exhibited excellent performance in the catalytic selective hydrogenation of various substituted alkynols. Therefore, this research work provides a feasible strategy for the effective regulation of catalytic performance, which has potential application for the efficient catalytic selective hydrogenation of alkynols in the fine chemical industry.

Graphical abstract: Mesoporous CeO2-supported ultrafine PdCu nanoparticle catalyst for selective hydrogenation of alkynols

Article information

Article type
Paper
Submitted
12 Sep 2023
Accepted
12 Oct 2023
First published
12 Oct 2023

React. Chem. Eng., 2024,9, 339-348

Mesoporous CeO2-supported ultrafine PdCu nanoparticle catalyst for selective hydrogenation of alkynols

C. Zhang, Y. Zheng, J. Li, H. Cao, Y. Xu, W. Liu and Z. Dong, React. Chem. Eng., 2024, 9, 339 DOI: 10.1039/D3RE00480E

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements