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Molten Salt-Directed Catalytic Synthesis of 2D Layered Transition-Metal Nitrides for Efficient Hydrogen Evolution

Open access
Jin, Huanyu, Gu, Qinfen, Chen, Bo, Tang, Cheng, Zheng, Yao, Zhang, Hua, Jaroniec, Mietek, Qiao, Shi-Zhang·2020·Chem

Abstract

Summary Facile synthesis of single-crystal 2D layered transition-metal nitrides (TMNs) is of crucial importance for the development of forthcoming technologies, such as superconducting, electromagnetic interference shielding, and energy-related applications. However, the fabrication of TMNs with natural 2D layered structure is thermodynamically difficult, in which stringent synthesis constraints have limited the exploration of this important class of functional materials. Here, we employed alkali molten salts as catalysts to achieve facile and large-scale (over decagram) synthesis of a family of 2D layered TMNs, such as MoN1.2, WN1.5, and Mo0.7W0.3N1.2, under atmospheric pressure. Ex-situ experiments reveal that the molten salt can lower the formation energy of 2D layered TMNs by assuring a liquid-gas synthesis and forming a TMN-salt-TMN superstructure as an intermediate. The resultant 2D layered TMNs show superior performance in hydrogen evolution reaction, demonstrating the immense potential of 2D layered TMNs for energy-related applications and beyond.

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Metadata

Authors
Jin, H., Gu, Q., Chen, B., Tang, C., Zheng, Y., Zhang, H., Jaroniec, M., & Qiao, S.-Z.
Venue
Chem
Publisher
Elsevier BV
Published
2020-09
Volume
6
Issue
9
Pages
2382-2394
ISSN
2451-9294 (ISSN-L)
OpenAlex
W3046077916
Cited by
242
References
8
FWCI
7.03
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: Molten Salt-Directed Catalytic Synthesis of 2D Layered Transition-Metal Nitrides for Efficient Hydrogen Evolution. https://app.cochat.ai/papers/10.1016/j.chempr.2020.06.037
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Jin, H., Gu, Q., Chen, B., Tang, C., Zheng, Y., Zhang, H., Jaroniec, M., & Qiao, S.-Z. (2020). Molten Salt-Directed Catalytic Synthesis of 2D Layered Transition-Metal Nitrides for Efficient Hydrogen Evolution. Chem. https://doi.org/10.1016/j.chempr.2020.06.037

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