SCIENCE CHINA Materials, Volume 62 , Issue 8 : 1096-1104(2019) https://doi.org/10.1007/s40843-019-9413-5

Pt embedded Ni3Se2@NiOOH core-shell dendrite-like nanoarrays on nickel foam as bifunctional electrocatalysts for overall water splitting

More info
  • ReceivedJan 25, 2019
  • AcceptedMar 11, 2019
  • PublishedApr 4, 2019


Funded by

the National Natural Science Foundation of China(51804216,51472178,U1601216)

Tianjin Natural Science Foundation(16JCYBJC17600)

Shen-zhen Science and Technology Foundation(JCYJ20170307145703486)



This work was supported by the National Natural Science Foundation of China (51804216, 51472178 and U1601216), Tianjin Natural Science Foundation (16JCYBJC17600) and Shen-zhen Science and Technology Foundation (JCYJ20170307145703486). The authors would also like to express gratitude to Ms. Jinfeng Zhang and Ms. Jing Mao for their assistance in TEM and EDS analysis, respectively.

Interest statement

The authors declare no competing financial interest.

Contributions statement

Zheng X and Hu W designed and engineered the samples; Cao Y and Han X performed the experiments; Liu H, Wang J and Zhong C performed the data analysis; Zhang Z and Wu X helped analyze the results; Zheng X and Deng Y wrote the manuscript. All authors contributed to the general discussion.

Author information

Xuerong Zheng is a PhD student in the School of Materials Science and Engineering at Tianjin University. His recent research interest focuses on the development of electrochemical metallurgy methods for preparing micro/nano- structured materials for electrochemical and electrocatalysis applications.

Yida Deng is a Professor in the School of Materials Science and Engineering, Tianjin University. He received his PhD degree from Shanghai Jiao Tong University in 2006. His research interest includes metal and metal oxide nanostructures for electrochemical and energy applications.


Supplementary information

EDS, SEM and TEM images of PNOF, NOF and Ni3Se2/NF catalysts, calculation of double-layer capacitance, characterization and activity of the catalysts, etc., are available in the online version of this paper.


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  • Figure 1

    Schematic illustration for the synthesis of three dimensional PNOF nanohybrids. (a) NF cleaned by sonication in acetone and ethanol for at least 30 min. (b) In-situ fabrication of Ni3Se2 dendrite-like arrays by directly selenization assisted with polyols. (c) In-situ electrochemical oxidation to prepare NOF core-shell structure. (d) In-situ growth of Pt nanoparticles anchoring on the surface of NOF. (e) The amplified Pt/NiOOH structure.

  • Figure 2

    (a) XRD patterns of Ni3Se2/NF and NOF catalysts, SEM and low-magnification SEM (inset) images (b) and HRTEM and TEM (inset) images (c) of Ni3Se2/NF. (d) TEM and enlarged TEM (inset) images of core-shell NOF. (e) HRTEM image of Ni3Se2@NiOOH with an obvious interface. (f) The room-temperature ESR spectra of NOF and Ni3Se2/NF. TEM image (g) and high magnification TEM image (h) of PNOF. (i) HRTEM image of Pt nanoparticles embedded on the surface of NiOOH nanosheets, and the corresponding FFT patterns (inset) of Pt nanoparticles. (j) TEM image and EDX elemental mapping of Ni, Se, Pt and O in PNOF hybrid catalysts.

  • Figure 3

    XPS spectra of (a) Ni 2p for Ni3Se2/NF and PNOF catalysts, (b) Se 3d for Ni3Se2/NF and NOF catalysts, (c) O 1s for Ni3Se2/NF and NOF catalysts, (d) Pt 4f for PNOF and 20 wt% Pt/C catalysts.

  • Figure 4

    (a) HER polarization curves of PNOF, NOF, Ni3Se2/NF, NF and Pt/C catalysts at a scan rate of 5 mV s−1 in 1.0 mol L−1 KOH. (b) Corresponding HER Tafel plots. (c) Mass activity (Jk, mass) of PNOF hybrid catalysts in comparison with 20 wt% Pt/C at different current densities. (d) OER polarization curves of PNOF, NOF, Ni3Se2/NF, NF and Pt/C catalysts at a scan rate of 5 mV s−1 in 1.0 mol L−1 KOH. (e) Corresponding OER Tafel plots. (f) Dependence of current densities as a function of scan rates. (g) Polarization curves of PNOF, NOF and Ni3Se2/NF for overall alkaline water splitting in a two-electrode configuration. (h) ΔE calculated from the polarization curves of PNOF, NOF, Ni3Se2/NF and NF for HER and OER from Fig. 4a and d. (i) Cycling stability of PNOF for water electrolysis in 1.0 mol L−1 KOH with different current densities.


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