Early View e202510284
Research Article

Hydrophobic Poly(divinylbenzene) Polymer-Supported Ruthenium Catalysts for Efficient Hydrogenation of Pyridines in Water

Qingsong Luo

Qingsong Luo

Key Lab of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027 China

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Hai Wang

Corresponding Author

Hai Wang

Key Lab of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027 China

E-mail: [email protected]; [email protected]

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Yating Lv

Yating Lv

Key Lab of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027 China

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Jinghao Fan

Jinghao Fan

Key Lab of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027 China

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Huixin Wu

Huixin Wu

Key Lab of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027 China

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Wei Fang

Wei Fang

Key Lab of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027 China

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Lujie Liu

Lujie Liu

Key Lab of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027 China

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Pei Liu

Pei Liu

Key Lab of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027 China

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Liang Wang

Liang Wang

Key Lab of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027 China

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Feng-Shou Xiao

Corresponding Author

Feng-Shou Xiao

Key Lab of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027 China

E-mail: [email protected]; [email protected]

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First published: 25 July 2025

Graphical Abstract

This study demonstrates that the pyridine hydrogenation in water is greatly enhanced over the hydrophobic Ru/PDVB catalyst, where nanopores in the PDVB are empty for hydrogen storage, enabling the enrichment of abundant hydrogen around active Ru sites for hydrogenation.

Abstract

Gas–liquid–solid triphase reactions are limited by poor gas solubility and mass transfer, especially in water. The low solubility of hydrogen in water severely hinders the hydrogenation, therefore requiring high temperature and pressure to increase the activity, which have safety and cost concerns. Herein, we report a hydrophobic poly(divinylbenzene) polymer-supported Ru nanoparticle catalyst (Ru/PDVB) with both high activity and excellent stability for the hydrogenation of pyridines in water, even at ambient hydrogen pressure (0.1 MPa). The average turnover frequency (ATOF) of the Ru/PDVB (836.8 mol molRu−1 h−1) is about 6.0 and 768.0-fold higher than those of traditional Ru/C and commercial Raney Ni catalysts under equivalent reaction conditions. Mechanistic studies reveal that the hydrophobic polymer prevents filling of water in the nanopores of PDVB, allowing hydrogen enrichment to boost the hydrogenation. This work provides an opportunity to improve the efficiency of industrially important reactions that suffer from poor gas solubility and mass transfer.

Conflict of Interests

The authors declare no conflict of interest.

Data Availability Statement

The data that support the findings of this study are available in the Supporting Information of this article.

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