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

Jian Gao; Zhihua Cheng; Changxiang Shao; Yang Zhao; Zhipan Zhang; Liangti Qu

doi:10.1039/c7ta03228e

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

Jian Gao, Zhihua Cheng, Changxiang Shao, Yang Zhao^*, Zhipan Zhang, Liangti Qu

^*Corresponding author for this work

School of Chemistry and Chemical Engineering

Beijing Institute of Technology

Research output: Contribution to journal › Article › peer-review

30 Citations (Scopus)

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.

Original language	English
Pages (from-to)	12027-12033
Number of pages	7
Journal	Journal of Materials Chemistry A
Volume	5
Issue number	24
DOIs	https://doi.org/10.1039/c7ta03228e
Publication status	Published - 2017

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Gao, J., Cheng, Z., Shao, C., Zhao, Y., Zhang, Z., & Qu, L. (2017). A 2D free-standing film-inspired electrocatalyst for highly efficient hydrogen production. Journal of Materials Chemistry A, 5(24), 12027-12033. https://doi.org/10.1039/c7ta03228e

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AU - Shao, Changxiang

AU - Zhao, Yang

AU - Zhang, Zhipan

AU - Qu, Liangti

PY - 2017

Y1 - 2017

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AB - 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.

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

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