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Electrochemical hydrogen evolution efficiently boosted by interfacial charge redistribution in Ru/MoSe 2 embedded mesoporous hollow carbon spheres

Journal of Energy Chemistry, ISSN: 2095-4956, Vol: 85, Page: 447-454
2023
  • 50
    Citations
  • 0
    Usage
  • 5
    Captures
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    Mentions
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Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    50
    • Citation Indexes
      50
  • Captures
    5

Article Description

The strong metal-support interaction inducing combined effect plays a crucial role in the catalysis reaction. Herein, we revealed that the combined advantages of MoSe 2, Ru, and hollow carbon spheres in the form of Ru nanoparticles (NPs) anchored on a two-dimensionally ordered MoSe 2 nanosheet-embedded mesoporous hollow carbon spheres surface (Ru/MoSe 2 @MHCS) for the largely boosted hydrogen evolution reaction (HER) performance. The combined advantages from the conductive support, oxyphilic MoSe 2, and Ru active sites imparted a strong synergistic effect and charge redistribution in the Ru periphery which induced high catalytic activity, stability, and kinetics for HER. Specifically, the obtained Ru/MoSe 2 @MHCS required a small overpotential of 25.5 and 38.4 mV to drive the kinetic current density of 10 mA cm −2 both in acid and alkaline media, respectively, which was comparable to that of the Pt/C catalyst. Experimental and theoretical results demonstrated that the charge transfer from MoSe 2 to Ru NPs enriched the electronic density of Ru sites and thus facilitated hydrogen adsorption and water dissociation. The current work showed the significant interfacial engineering in Ru-based catalysts development and catalysis promotion effect understanding via the metal-support interaction.

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