Dynamic boron-doping switched chitin-based single-atom Pt catalyst for chemo-selective hydrogenation

Yan Li, Lijun Lu, Xueyu Jiang, Dali Yang, Jeng-Lung Chen, Abhishek Dutta Chowdhury, Wu Li (), Xianglin Pei () and Aiwen Lei ()
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Yan Li: Wuhan University
Lijun Lu: Wuhan University
Xueyu Jiang: Wuhan University
Dali Yang: Wuhan University
Jeng-Lung Chen: National Synchrotron Radiation Research Center
Abhishek Dutta Chowdhury: Wuhan University
Wu Li: Wuhan University
Xianglin Pei: Guizhou Normal University
Aiwen Lei: Wuhan University

Nature Communications, 2025, vol. 16, issue 1, 1-9

Abstract: Abstract Biomass valorization is a way to promote the ‘waste-to-wealth’ concept, which is a pre-requisite condition for a future sustainable lifestyle. The direct utilization of natural polymer for value-added materials should be prioritized. With this object, we demonstrate a facile and economical method to prepare chitin-derived supramolecular nanowires-stabilized single-atom sites Pt catalysts (SS-Pt-CSNs). A comprehensive characterization shows the structure of single-atom Pt coordinated with the organic supramolecular (ligand-type) entity, which is both flexible (like in homogenous catalyst) and robust (like in heterogenous catalyst). Such hybrid characteristics of these SS-Pt-CSNs materials exhibit excellent catalytic performance for chemo-selective hydrogenation of various unsaturated bonds with a selectivity of more than 90:1 and a high turnover number (TON) of 121,350. Mechanistic studies demonstrate that both empty coordination sites of Pt and dynamic B-doping are the key factors for exceptional efficiency and high selectivity.

Date: 2025
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DOI: 10.1038/s41467-025-57434-0

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