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Cited by 569

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Superior visible light hydrogen evolution of Janus bilayer junctions via atomic-level charge flow steering

Open access
Li, Jie, Zhan, Guangming, Yu, Ying, Zhang, Lizhi·2016·Nature Communications

Abstract

Although photocatalytic hydrogen evolution (PHE) is ideal for solar-to-fuel conversion, it remains challenging to construct a highly efficient PHE system by steering the charge flow in a precise manner. Here we tackle this challenge by assembling 1T MoS 2 monolayers selectively and chemically onto (Bi 12 O 17) end-faces of Bi 12 O 17 Cl 2 monolayers to craft two-dimensional (2D) Janus (Cl 2)-(Bi 12 O 17)-(MoS 2) bilayer junctions, a new 2D motif different from van der Waals heterostructure. Electrons and holes from visible light-irradiated Bi 12 O 17 Cl 2 are directionally separated by the internal electric field to (Bi 12 O 17) and (Cl 2) end-faces, respectively. The separated electrons can further migrate to MoS 2 via Bi–S bonds formed between (Bi 12 O 17) and MoS 2 monolayers. This atomic-level directional charge separation endows the Janus bilayers with ultralong carrier lifetime of 3,446 ns and hence a superior visible-light PHE rate of 33 mmol h−1 g−1. Our delineated Janus bilayer junctions on the basis of the oriented assembly of monolayers presents a new design concept to effectively steer the charge flow for PHE.

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Metadata

Authors
Li, J., Zhan, G., Yu, Y., & Zhang, L.
Venue
Nature Communications
Published
2016-05-09
Volume
7
Issue
1
Pages
11480-11480
ISSN
2041-1723 (ISSN-L)
OpenAlex
W2346956654
Cited by
569
References
1
FWCI
16.36
Type
journal article
Language
en
Open access
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CoChat. (2026). Citation check: Superior visible light hydrogen evolution of Janus bilayer junctions via atomic-level charge flow steering. https://app.cochat.ai/papers/10.1038/ncomms11480
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Li, J., Zhan, G., Yu, Y., & Zhang, L. (2016). Superior visible light hydrogen evolution of Janus bilayer junctions via atomic-level charge flow steering. Nature Communications. https://doi.org/10.1038/ncomms11480

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