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<p>Metal-support interaction is vital of modulating electronic structure of metal nanoclusters as well as stabilizing these nanoclusters. In this study, a series of Ru-based catalysts supported on CNT doped with diverse nonmetallic elements, including O, N, and S (denoted as Ru/x-CNT), are delicately designed to investigate the relationship of metal-support interaction and HER activities. Compared with N-CNT and S-CNT, O-CNT-supported Ru NCs manifest the stronger metal-support interactions due to its high charge transfer between Ru and substrate, which exhibits a remarkable low overpotential of 10&#xa0;mV at 10&#xa0;mA&#xa0;cm<sup>−2</sup> and excellent stability at 100&#xa0;mA&#xa0;cm<sup>−2</sup>. This work confirms that enhanced metal-support interactions are benefited to improve both HER activity and stability.</p> Graphical Abstract <p></p>

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Ru nanoclusters supported on doped carbon nanotubes for efficient alkaline hydrogen evolution: metal-support interactions modulated by different heteroatoms

  • 期刊论文

  • 发表日期：

    2025年5月31日

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  • Wenke Liu,
  • Ziqi Meng,
  • Bo Li,
  • Jing Chen,
  • Mengran Liu,
  • Jiaxun Feng,
  • Dongjin Wan,
  • Xuzhuo Sun

摘要

Metal-support interaction is vital of modulating electronic structure of metal nanoclusters as well as stabilizing these nanoclusters. In this study, a series of Ru-based catalysts supported on CNT doped with diverse nonmetallic elements, including O, N, and S (denoted as Ru/x-CNT), are delicately designed to investigate the relationship of metal-support interaction and HER activities. Compared with N-CNT and S-CNT, O-CNT-supported Ru NCs manifest the stronger metal-support interactions due to its high charge transfer between Ru and substrate, which exhibits a remarkable low overpotential of 10 mV at 10 mA cm−2 and excellent stability at 100 mA cm−2. This work confirms that enhanced metal-support interactions are benefited to improve both HER activity and stability.

Graphical Abstract