Advanced Photonics Nexus, Volume. 2, Issue 5, 056009(2023)

High repetition rate ultrafast laser-structured nickel electrocatalyst for efficient hydrogen evolution reaction

Zaiwei Cai1、†, Zihao Li1, Yingtao Zhang1, Chiyi Wei1, Hao Tian1, Molei Hao1, Xiaoming Wei1,2,3,4、*, and Zhongmin Yang1,2,3,4,5、*
Author Affiliations
  • 1South China University of Technology, School of Physics and Optoelectronics, Guangzhou, China
  • 2South China University of Technology, State Key Laboratory of Luminescent Materials, Guangzhou, China
  • 3South China University of Technology, Guangdong Engineering Technology Research and Development Center of Special Optical Fiber Materials and Devices, Guangzhou, China
  • 4South China University of Technology, Guangdong Provincial Key Laboratory of Fiber Laser Materials and Applied Techniques, Guangzhou, China
  • 5South China Normal University, Research Institute of Future Technology, Guangzhou, China
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    Figures & Tables(7)
    SEM images of (a)–(c) low scan speed group samples S-2, S-4, and S-6; (d)–(f) high scan number group samples N-50, N-150, and N-250; and (g)–(i) high-pulse fluence group samples F-1, F-2, and F-3.
    Schematic illustration of the morphology formation processes of (a) a low scan speed group sample and (b) a high scan number group sample.
    Energy-dispersive spectroscopy mapping images of (a) S-2, (b) N-150, and (c) F-3. (d) XRD pattern of S-2.
    Linear sweep voltammograms of (a) low scan speed group, (b) high scan number group, and (c) high-pulse fluence group and bare Ni electrodes.
    Electrochemical impedance spectra and the corresponding fitted curves of (a) low scan speed group, (b) high scan number group, and (c) high-pulse fluence group and bare Ni electrodes. (d) Equivalent circuit used for fitting.
    Chronopotentiograms of (a) low scan speed group, (b) high scan number group, and (c) high-pulse fluence group and bare Ni electrodes.
    • Table 1. Key parameters used in laser structuring of different groups of samples.

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      Table 1. Key parameters used in laser structuring of different groups of samples.

      Sample denotationScan speed (mms1)Duty cycle (%)Laser power (W)Scan numberScan pitch distance (μm)
      Low scan speed groupS-20.75209220
      S-44
      S-66
      High scan number groupN-5050501220050
      N-150150
      N-250250
      High-pulse fluence groupF-155401100
      F-22
      F-33
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    Zaiwei Cai, Zihao Li, Yingtao Zhang, Chiyi Wei, Hao Tian, Molei Hao, Xiaoming Wei, Zhongmin Yang, "High repetition rate ultrafast laser-structured nickel electrocatalyst for efficient hydrogen evolution reaction," Adv. Photon. Nexus 2, 056009 (2023)

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    Paper Information

    Category: Research Articles

    Received: Jun. 7, 2023

    Accepted: Sep. 1, 2023

    Published Online: Sep. 22, 2023

    The Author Email: Wei Xiaoming (xmwei@scut.edu.cn), Yang Zhongmin (yangzm@scut.edu.cn)

    DOI:10.1117/1.APN.2.5.056009

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