Dual-template engineering of triple-layered nanoarray electrode of metal chalcogenides sandwiched with hydrogen-substituted graphdiyne

Sifei Zhuo, Yusuf Shi, Lingmei Liu, Renyuan Li, Le Shi, Dalaver H. Anjum, Yu Han () and Peng Wang ()
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Sifei Zhuo: King Abdullah University of Science and Technology
Yusuf Shi: King Abdullah University of Science and Technology
Lingmei Liu: King Abdullah University of Science and Technology
Renyuan Li: King Abdullah University of Science and Technology
Le Shi: King Abdullah University of Science and Technology
Dalaver H. Anjum: King Abdullah University of Science and Technology
Yu Han: King Abdullah University of Science and Technology
Peng Wang: King Abdullah University of Science and Technology

Nature Communications, 2018, vol. 9, issue 1, 1-12

Abstract: Abstract Hybrid nanostructures integrating electroactive materials with functional species, such as metal-organic frameworks, covalent organic frameworks, graphdiyne etc., are of significance for both fundamental research and energy conversion/storage applications. Here, hierarchical triple-layered nanotube arrays, which consist of hydrogen-substituted graphdiyne frameworks seamlessly sandwiched between an outer layer of nickel–cobalt co-doped molybdenum disulfide nanosheets and an inner layer of mixed cobalt sulfide and nickel sulfide (Co9S8/Ni3S2), are directly fabricated on conductive carbon paper. The elaborate triple-layered structure emerges as a useful hybrid electrode for energy conversion and storage, in which the organic hydrogen-substituted graphdiyne middle layer, with an extended π-conjugated system between the electroactive nanomaterials, provides built-in electron and ion channels that are crucial for performance enhancement. This dual-template synthetic method, which makes use of microporous organic networks to confine a self-template, is shown to be versatile and thus provides a promising platform for advanced nanostructure-engineering of hierarchical multi-layered nanostructures towards a wide range of electrochemical applications.

Date: 2018
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DOI: 10.1038/s41467-018-05474-0

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