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Well Dispersed MoC Quantum Dots in Ultrathin Carbon Film as Efficient Co-catalyst for Photocatalytic H2 Evolution

Abstract

As a promising alternative to Pt, molybdenum carbides have been widespread used in many domains. Herein, we develop a co-catalyst with 2D lamellar structure, in which MoC quantum dots are embedded in carbon membrane uniformly (MoC-QDs/C). With the introduction of MoC-QDs/C, the flower-like MoC-QDs/C/ZnIn2S4 composite shows an unprecedented enhancement of photocatalytic performance, compared with pure ZnIn2S4. The optimal hydrogen generation rate of MoC-QDs/C/ZnIn2S4 is almost 48 times as much as that of pure ZnIn2S4. Besides, the enhancement mechanism is also demonstrated that MoC-QDs/C can accelerate carriers’ separation and decrease the overpotential of hydrogen evolution effectively during photocatalytic water splitting process. Moreover, this study not only provides a high-efficiency and potential co-catalyst for photocatalytic H2 production, but also is expected to come up with a new designing scheme for transition metal carbides-invoved co-catalyst.

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Publication details

The article was received on 23 Jun 2018, accepted on 06 Sep 2018 and first published on 10 Sep 2018


Article type: Paper
DOI: 10.1039/C8TA06029K
Citation: J. Mater. Chem. A, 2018, Accepted Manuscript
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    Well Dispersed MoC Quantum Dots in Ultrathin Carbon Film as Efficient Co-catalyst for Photocatalytic H2 Evolution

    F. Gao, Y. Zhao, L. Zhang, B. Wang, Y. Wang, X. Huang, K. Wang, W. Feng and P. Liu, J. Mater. Chem. A, 2018, Accepted Manuscript , DOI: 10.1039/C8TA06029K

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