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Journal of Materials Science: Materials in Electronics

, Volume 30, Issue 17, pp 16446–16451 | Cite as

Preparation and high-efficient hydrogen evolution reaction of hydrangea-like MoS2 hollow microspheres modified by needle-like g-C3N4

  • Qingdan Shi
  • Qingyuan qin
  • Yan Zhou
  • Junmin WanEmail author
  • Zhiwen Hu
Article
  • 43 Downloads

Abstract

To exploit non-precious metallic and earth-abundant elements for effective electrocatalytic hydrogenation catalysts, a unique structure electrocatalytic hydrogenation catalyst is fabricated using hydrangea-like molybdenum disulfide (MoS2) hollow microsphere with an average external diameter of 2.5 μm and the needle-like graphitic carbon nitride (g-C3N4) with an average length of 1 μm. The special morphology of the g-C3N4/MoS2 composite heterostructure with advantages of more exposed edge, better conductivity and defect-structures remarkably improves electrochemical active sites, which leads to an outstanding electrocatalytic performance for hydrogen evolution reaction (HER) with a small Tafel slop of 55.7 mV decade−1 and low overpotential (98.8 mV at 10 mA cm−2) more than most MoS2-based catalysts reported. The unique g-C3N4/MoS2 composite heterostructure can be applied in the field of energy conversion and storage.

Notes

Acknowledgements

We gratefully acknowledge financial support from Zhejiang Top Priority Discipline of Textile Science and Engineering, Natural Science Foundation of Zhejiang Province (No. LY13B030009).

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© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  1. 1.National Engineering Lab of Textile Fiber Materials & Processing TechnologyZhejiang Sci-Tech UniversityHangzhouPeople’s Republic of China

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