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https://hdl.handle.net/2440/118420
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Type: | Journal article |
Title: | Engineering 2D metal-organic framework/MoS₂ interface for enhanced alkaline hydrogen evolution |
Other Titles: | Engineering 2D metal-organic framework/MoS(2) interface for enhanced alkaline hydrogen evolution |
Author: | Zhu, D. Liu, J. Zhao, Y. Zheng, Y. Qiao, S.Z. |
Citation: | Small, 2019; 15(14):e1805511-e1805511 |
Publisher: | Wiley |
Issue Date: | 2019 |
ISSN: | 1613-6810 1613-6829 |
Statement of Responsibility: | Dongdong Zhu, Jinlong Liu, Yongqiang Zhao, Yao Zheng, Shi‐Zhang Qiao |
Abstract: | 2D metal-organic frameworks (MOFs) have been widely investigated for electrocatalysis because of their unique characteristics such as large specific surface area, tunable structures, and enhanced conductivity. However, most of the works are focused on oxygen evolution reaction. There are very limited numbers of reports on MOFs for hydrogen evolution reaction (HER), and generally these reported MOFs suffer from unsatisfactory HER activities. In this contribution, novel 2D Co-BDC/MoS2 (BDC stands for 1,4-benzenedicarboxylate, C8 H4 O4 ) hybrid nanosheets are synthesized via a facile sonication-assisted solution strategy. The introduction of Co-BDC induces a partial phase transfer from semiconducting 2H-MoS2 to metallic 1T-MoS2 . Compared with 2H-MoS2 , 1T-MoS2 can activate the inert basal plane to provide more catalytic active sites, which contributes significantly to improving HER activity. The well-designed Co-BDC/MoS2 interface is vital for alkaline HER, as Co-BDC makes it possible to speed up the sluggish water dissociation (rate-limiting step for alkaline HER), and modified MoS2 is favorable for the subsequent hydrogen generation step. As expected, the resultant 2D Co-BDC/MoS2 hybrid nanosheets demonstrate remarkable catalytic activity and good stability toward alkaline HER, outperforming those of bare Co-BDC, MoS2 , and almost all the previously reported MOF-based electrocatalysts. |
Keywords: | 2D material MoS2 electrocatalysis hydrogen evolution reaction metal-organic framework |
Rights: | © 2019 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim |
DOI: | 10.1002/smll.201805511 |
Grant ID: | http://purl.org/au-research/grants/arc/DP160104866 http://purl.org/au-research/grants/arc/DP170104464 http://purl.org/au-research/grants/arc/LP160100927 http://purl.org/au-research/grants/arc/FL170100154 |
Published version: | http://dx.doi.org/10.1002/smll.201805511 |
Appears in Collections: | Aurora harvest 4 Chemical Engineering publications |
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