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

作者：Yan Li, Lijun Lu, Xueyu Jiang, Dali Yang, Jeng‐Lung Chen, Abhishek Dutta Chowdhury, Wu Li, Xianglin Pei, Aiwen Lei · 发表于：Nature Communications · 年份：2025 · DOI：10.1038/s41467-025-57434-0 · 被引用次数：11 · 研究领域：Nanomaterials for catalytic reactions、Catalysis for Biomass Conversion、Asymmetric Hydrogenation and Catalysis

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. Biomass valorization is a way to promote the ‘waste-to-wealth’ concept, which is a prerequisite condition for a future sustainable lifestyle. Here, the authors demonstrate a methodology to prepare chitin-derived supramolecular nanowires-stabilized single-atom site platinum catalysts.