Dynamic boron-doping switched chitin-based single-atom Pt catalyst for chemo-selective hydrogenation
Yan Li1, Lijun Lu1, Xueyu Jiang1,2
1College of Chemistry and Molecular Sciences, Institute for Advanced Studies (IAS), Wuhan University, Wuhan, P. R. China.
Nature Communications
|March 7, 2025
Summary
This study presents a cost-effective method for creating novel chitin-derived single-atom platinum catalysts (SS-Pt-CSNs). These advanced catalysts demonstrate superior selectivity and efficiency in hydrogenation reactions, promoting sustainable waste-to-wealth strategies.
Area of Science:
- Materials Science
- Catalysis
- Green Chemistry
Background:
- Biomass valorization aligns with the 'waste-to-wealth' concept crucial for sustainability.
- Prioritizing natural polymers for value-added materials is essential.
- Developing efficient catalysts from renewable resources is a key challenge.
Purpose of the Study:
- To develop an economical method for preparing chitin-derived supramolecular nanowires-stabilized single-atom sites Pt catalysts (SS-Pt-CSNs).
- To investigate the catalytic performance and structural characteristics of these novel catalysts.
Main Methods:
- Facile and economical synthesis of SS-Pt-CSNs using chitin.
- Comprehensive characterization of the catalyst structure and composition.
- Evaluation of catalytic performance in chemo-selective hydrogenation reactions.
Main Results:
- Successfully prepared SS-Pt-CSNs with single-atom Pt coordinated to an organic supramolecular entity.
- Achieved excellent catalytic performance for chemo-selective hydrogenation with >90:1 selectivity.
- Recorded a high turnover number (TON) of 121,350.
- Identified empty Pt coordination sites and dynamic B-doping as key factors for efficiency.
Conclusions:
- SS-Pt-CSNs exhibit hybrid characteristics of homogeneous and heterogeneous catalysts.
- The developed catalysts offer exceptional efficiency and selectivity for hydrogenation.
- This work advances biomass valorization and sustainable catalysis.
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