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Issue 24, 2017
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A 2D free-standing film-inspired electrocatalyst for highly efficient hydrogen production

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Abstract

The development of self-supporting binder-free catalysts is of great significance for the practical application of the electrocatalytic hydrogen evolution reaction (HER). In this work, we report a rationally assembled two dimensional (2D) free-standing film based on 1D molybdenum carbide nanoribbons between nitrogen doped graphene nanolayers (Mo2C nanoribbon/N-G). Due to multichannel and expeditious charge and mass transport, the integrated Mo2C nanoribbon/N-G film exhibits a remarkable HER performance with a low onset potential of 84 mV (vs. the RHE), a small Tafel slope of 57 mV dec−1, and an overpotential of 162 mV (vs. the RHE) to reach a current density of 10 mA cm−2, superior to most transition metal based free-standing catalysts reported previously. This work provides a great advance for designing and fabricating cost-effective, applicable catalysts for hydrogen evolution and water splitting.

Graphical abstract: A 2D free-standing film-inspired electrocatalyst for highly efficient hydrogen production

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Publication details

The article was received on 13 Apr 2017, accepted on 22 May 2017 and first published on 23 May 2017


Article type: Communication
DOI: 10.1039/C7TA03228E
Citation: J. Mater. Chem. A, 2017,5, 12027-12033
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    A 2D free-standing film-inspired electrocatalyst for highly efficient hydrogen production

    J. Gao, Z. Cheng, C. Shao, Y. Zhao, Z. Zhang and L. Qu, J. Mater. Chem. A, 2017, 5, 12027
    DOI: 10.1039/C7TA03228E

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