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Fabrication self–assembly bulk CuO/Cu2O@Ni–B metallic catalysts for hydrogen evolution reaction

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  • Zuo, Min
  • Liu, Tongtong
  • Ju, Yan
  • Xun, Hongmei
  • Zhang, Jie
  • Yan, Chenghe
  • Li, Minghou
  • Li, Jia
  • Zhao, Degang

Abstract

As a novel promising catalyst for hydrogen evolution reaction (HER), a three-dimensional self–assembly bulk CuO/Cu2O@Ni–B metallic catalysts were controllably synthesized through dealloying of Cu–Ni–B precursor alloys, in which porous Ni–B act as the continuous framework. By meaning of XRD and TEM, multiple Ni–B phases were proved to be present in precursor, including Ni4B3, Ni2B and NiB. With prolonging the dealloying time to 12h, CuO and Cu2O nanocubes and nanosheets were found to be attached on the Ni–B skeleton. Based on this, the product with dealloying treatment for 18h was revealed to obtain the overpotential as low as 163.2 mV@10 mA cm−2. Furthermore, this sample was also found to possess the remarkably small radii of Nyquist plots with Cdl value as 21.0 mF cm−2, suggesting the faster charge transfer ability and more active sites by appropriate dealloying engineering. In addition, it was worth noting that the catalysts could maintain an excellent cyclic stability for 12h of continuous operation. This work provided a new route for the exploration of TMBs catalysts with excellent hydrogen evolution activity.

Suggested Citation

  • Zuo, Min & Liu, Tongtong & Ju, Yan & Xun, Hongmei & Zhang, Jie & Yan, Chenghe & Li, Minghou & Li, Jia & Zhao, Degang, 2024. "Fabrication self–assembly bulk CuO/Cu2O@Ni–B metallic catalysts for hydrogen evolution reaction," Renewable Energy, Elsevier, vol. 235(C).
  • Handle: RePEc:eee:renene:v:235:y:2024:i:c:s0960148124013661
    DOI: 10.1016/j.renene.2024.121298
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    References listed on IDEAS

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    1. Wu, Zexing & Chen, Zhi & Xu, Kunhan & Li, Bin & Li, Zhenjiang & Xu, Guangrui & Xiao, Weiping & Ma, Tianyi & Fu, Yunlei & Wang, Lei, 2023. "Cationic defects coupled with trace Pt under the assistance of corrosive engineering for efficient hydrogen electrocatalysis with large current density," Renewable Energy, Elsevier, vol. 210(C), pages 196-202.
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    3. Jia Zhao & Ricardo Urrego-Ortiz & Nan Liao & Federico Calle-Vallejo & Jingshan Luo, 2024. "Rationally designed Ru catalysts supported on TiN for highly efficient and stable hydrogen evolution in alkaline conditions," Nature Communications, Nature, vol. 15(1), pages 1-14, December.
    4. Wang, Jianzhi & Guo, Ziyi & Liu, Manyu & Wang, Yijuan & Liu, Haiyan & Wu, Li & Xue, Yanan & Cai, Ning & Li, Hui & Yu, Faquan, 2023. "CoMoO4 nanoparticles decorated ultrathin nanoplates constructed porous flower as an electrocatalyst toward overall water splitting and Zn-air batteries," Renewable Energy, Elsevier, vol. 212(C), pages 751-760.
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