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A facile method was developed to fabricate nitrogen-doped graphene microtubes (N-GMT) with ultra-thin walls of 1–4 nm and large inner voids of 1–2 μm. The successful introduction of nitrogen dopants afforded N-GMT more active sites for significantly enhanced hydrogen evolution reaction (HER) activity, achieving a current density of 10 mA·cm–2 at overpotentials of 0.464 and 0.426 V vs. RHE in 0.1 and 6 M KOH solution, respectively. This HER performance surpassed that of the best metal-free catalyst reported in basic solution, further illustrating the great potential of N-GMT as an efficient HER catalyst for real applications in water splitting and chlor-alkali processes.

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Publication history

Received: 28 March 2016
Revised: 09 May 2016
Accepted: 12 May 2016
Published: 17 June 2016
Issue date: September 2016

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© Tsinghua University Press and Springer‐Verlag Berlin Heidelberg 2016

Acknowledgements

Acknowledgements

This work was financially supported by National Basic Research Program of China (No. 2013CB934102), the National Natural Science Foundation of China (Nos. 21331004 and 21301116), SJTU-UM joint grant and Shanghai Eastern Scholar Program.

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Reprints and Permission requests may be sought directly from editorial office.
Email: nanores@tup.tsinghua.edu.cn

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