Generalized Multidentate Ligand Chelating‐Grafting Strategy for Construction of Amorphous Metal Oxides Based Triple‐Layered Nanotubes

Intricate hollow transition‐metal oxides (TMOs)‐based hetero‐nanostructures demonstrate intriguing applications in electronics, energy storage, and catalysis owing to their exotic electronic features and geometric complexity; however, manipulating their topological features and interfacial interacti...

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Bibliographic Details
Published in:Physica status solidi. A, Applications and materials science Applications and materials science, 2022-06, Vol.219 (11), p.n/a
Main Authors: Yang, Kang-Xin, Zhou, Bing-Xin, Wang, Xiao-Rui, Li, Bo, Shi, Jing-Hui, Lian, Ji-Chun, Huang, Gui-Fang, Pan, Anlian, Huang, Wei-Qing
Format: Article
Language:English
Subjects:
amorphous TMOs
Catalysis
Catalytic activity
Chelating agents
chelating–grafting strategy
Chelation
Complexity
Covalent bonds
Cyanuric acid
Energy storage
Ethylenediamine
Ethylenediaminetetraacetic acids
Grafting
Hydrogen bonds
Hydrogen evolution
Ligands
Melamine
Metal oxides
Nanostructure
Nanotubes
photocatalytic hydrogen evolution
triple-layered hetero-nanotubes
ultrathin nanotubes
Zinc oxide
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Summary:Intricate hollow transition‐metal oxides (TMOs)‐based hetero‐nanostructures demonstrate intriguing applications in electronics, energy storage, and catalysis owing to their exotic electronic features and geometric complexity; however, manipulating their topological features and interfacial interactions of different subunits, is a grand challenge because most TMOs are intrinsic non‐layered crystals. Herein, a generalized multidentate ligand chelating‐grafting strategy for creating various amorphous TMOs‐based triple‐layered hetero‐nanotubes with face‐to‐face contact is demonstrated, by taking ethylenediamine tetraacetic acid (EDTA) chelating agent and melamine‐cyanuric acid (M‐CA) supramolecular complex‐polymer as a proof‐of‐concept. This strategy primarily depends on controlling the chelation of coordinated covalent bonds and grafting of hydrogen bonds, in which EDTA is utilized to chelate metal ions, and subsequently grafted to M‐CA supramolecular surface, followed by annealing treatment. Merited by the optimized structure in three natures of nanotubes‐interface‐heterolayers, the obtained hollow nanostructure possesses superior photocatalytic performance: the optimized a‐ZnO/C/CN hetero‐nanotube exhibits high hydrogen evolution rate of 400.01 μmol h−1 g−1, outperforming the bulk CN by about 14.29‐fold. The synthesis of various a‐TMOs‐based complex hollow nanostructures and the demonstration of high catalytic activity are expected to enable fundamental studies of cavity, hereto‐interface, and dimensionality effects on their properties and facilitate their use in catalysis and other applications. A chelating‐grafting strategy based on ethylenediamine tetraacetic acid (EDTA) chelating transition metal ions and subsequently grafting onto melamine‐cyanuric acid (M‐CA) supramolecular complex is proposed. A number of multilayered a‐TMOs/C/CN hetero‐nanotubes such as a‐ZnO/C/CN are successfully synthesized, which achieve large intimate interface connection and ultrathin multilayered configuration by subtly controlling and manipulating their topological features and interfacial interactions of different subunits.
ISSN:1862-6300
1862-6319
DOI:10.1002/pssa.202200178