• Four main strategies for improving the hydrogen evolution reaction (HER) performance of Ru-based catalysts were summarized.

• The source of HER activity of Ru-based catalysts is discussed in terms of catalytic mechanism.

• The current states, challenges and prospects were specifically provided for Ru-based catalysts.

中文翻译：

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用于有效析氢反应的工程钌基电催化剂

• 
  总结了提高钌基催化剂析氢反应（HER）性能的四种主要策略。

• 
  从催化机理方面讨论了Ru基催化剂HER活性的来源。

• 
  特别介绍了钌基催化剂的现状、挑战和前景。