Two-dimensional single-crystalline mesoporous high-entropy oxide nanoplates for efficient electrochemical biomass upgrading

Mesoporous single crystals have received more attention than ever in catalysis-related applications due to their unique structural functions. Despite great efforts, their progress in engineering crystallinity and composition has been remarkably slower than expected. In this manuscript, a template-fr...

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Bibliographic Details
Published in:Nature communications 2024-08, Vol.15 (1), p.6761-12, Article 6761
Main Authors: Wang, Yanzhi, He, Hangjuan, Lv, Hao, Jia, Fengrui, Liu, Ben
Format: Article
Language:English
Subjects:
639/301/1023/1026
639/638/77/887
Ammonia
Biomass
Catalysis
Composition
Crystallinity
Crystals
Electrochemistry
Electrodes
Entropy
Humanities and Social Sciences
Hydroxymethylfurfural
multidisciplinary
Nitrate reduction
Oxidation
Science
Science (multidisciplinary)
Single crystals
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Summary:Mesoporous single crystals have received more attention than ever in catalysis-related applications due to their unique structural functions. Despite great efforts, their progress in engineering crystallinity and composition has been remarkably slower than expected. In this manuscript, a template-free strategy is developed to prepare two-dimensional high-entropy oxide (HEO) nanoplates with single-crystallinity and penetrated mesoporosity, which further ensures precise control over high-entropy compositions and crystalline phases. Single-crystalline mesoporous HEOs (SC-MHEOs) disclose high electrocatalytic performance in 5-hydroxymethylfurfural oxidation reaction (HMFOR) for efficient biomass upgrading, with remarkable HMF conversion of 99.3% and superior 2,5-furandicarboxylic acid (FDCA) selectivity of 97.7%. Moreover, with nitrate reduction as coupling cathode reaction, SC-MHEO realizes concurrent electrosynthesis of value-added FDCA and ammonia in the two-electrode cell. Our study provides a powerful paradigm for producing a library of novel mesoporous single crystals for important catalysis-related applications, especially in the two-electrode cell. The authors developed a facile template-free strategy to prepare 2D high-entropy oxide with single-crystallinity and penetrated mesoporosity. It achieves the simultaneous electrosynthesis of value-added FDCA and ammonia in a two-electrode cell.
ISSN:2041-1723
2041-1723
DOI:10.1038/s41467-024-50721-2