Nano Research

, Volume 11, Issue 3, pp 1331–1344 | Cite as

Hierarchical CoNiSe2 nano-architecture as a high-performance electrocatalyst for water splitting

  • Tao Chen
  • Yiwei TanEmail author
Research Article


Hierarchical nano-architectures comprised of ultrathin ternary selenide (CoNiSe2) nanorods were directly grown on nickel foam (NF). The integrated CoNiSe2/NF functions as a robust electrocatalyst with an extremely high activity and stability for emerging renewable energy technologies, and electrochemical oxygen and hydrogen evolution reactions (OER and HER, respectively). The overpotentials required to deliver a current density of 100 mA·cm−2 are as low as 307 and 170 mV for the OER and HER, respectively; therefore, the obtained CoNiSe2 is among the most promising earth-abundant catalysts for water splitting. Furthermore, our synthetic sample validates a two-electrode electrolyzer for reducing the cell voltage in the full water splitting reaction to 1.591 V to achieve a current density of 10 mA·cm−2, which offers a novel, inexpensive, integrated selenide/NF electrode for electrocatalytic applications.


bifunctional catalysts electrocatalysis nanostructures ternary selenide water splitting 


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This work was financially supported by the National Natural Science Foundation of China (NSFC) (No. 21371097) and the Key University Science Research Project of Jiangsu Province (No. 16KJA150004).

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Hierarchical CoNiSe2 nano-architecture as a high-performance electrocatalyst for water splitting

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Copyright information

© Tsinghua University Press and Springer-Verlag GmbH Germany 2018

Authors and Affiliations

  1. 1.State Key Laboratory of Materials-Oriented Chemical Engineering, School of Chemistry and Chemical EngineeringNanjing Tech UniversityNanjingChina

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