Journal of Materials Science

, Volume 55, Issue 6, pp 2492–2502 | Cite as

Molybdenum-doped CuO nanosheets on Ni foams with extraordinary specific capacitance for advanced hybrid supercapacitors

  • Wenbo Lv
  • Lu Li
  • Qinghe Meng
  • Xitian ZhangEmail author
Energy materials


Copper oxide (CuO) electrodes have outstanding potentials for supercapacitors in virtue of their low cost, environment friendly, especially, and the high theoretical specific capacitance (1800 F g−1). However, their poor electronic conductivity restricts the practical application. Doping appropriate transitional metal ions into host materials is an effective method to modulate the electronic structure and improve the conductivity, furthermore, enhancing the energy storage capacity. Herein, Mo-doped CuO nanosheets on Ni foams were obtained by combining a simple hydrothermal process and calcination treatment. Different doping concentrations of Mo were discussed, and the as-prepared 3 at.% Mo-doped CuO (Mo-CuO-2) exhibited the best electrical conductivity and the highest specific capacitance of 1392 F g−1 at 2 A g−1. In addition, an asymmetric supercapacitor device was assembled using Mo-CuO-2 and activated carbon as a positive electrode and a negative electrode, which exhibited a remarkable energy density of 36 Wh kg−1 at 810 W kg−1 and an excellent cycle life with 81% capacitance retention for over 5000 cycles. More significantly, Mo-CuO-2 is a promising material candidate for practical energy storage applications.



This work was partly supported by National Natural Science Foundation of China (51772069 and 51572064).

Compliance with ethical standards

Conflict of interest

There are no conflicts to declare.

Supplementary material

10853_2019_4129_MOESM1_ESM.docx (1.8 mb)
Supplementary material 1 (DOCX 1835 kb)


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

Authors and Affiliations

  1. 1.Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, School of Physics and Electronic EngineeringHarbin Normal UniversityHarbinPeople’s Republic of China

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