Electrocatalysis is crucial for sustainable energy solutions, focusing on energy harvesting, storage, and pollution control. Despite the development of various electrocatalysts, understanding the dynamic processes in electrochemical reactions is still limited, hindering effective catalyst design. In situ Raman spectra have emerged as a critical tool, providing molecular-level insights into surface processes under operational conditions and discussing their development, advantages, and configurations. This review emphasizes new findings at the catalyst–electrolyte interface, especially interface water molecule state, during the hydrogen evolution reaction and oxygen evolution reaction in recent years. Finally, the challenges and future directions for in situ Raman techniques in electrocatalysis are discussed, emphasizing their importance in advancing understanding and guiding novel catalyst design.

中文翻译：

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揭示水电解中的电催化剂反应机理：原位拉曼光谱


电催化对于可持续能源解决方案至关重要，专注于能量收集、储存和污染控制。尽管开发了各种电催化剂，但对电化学反应中动态过程的理解仍然有限，阻碍了有效的催化剂设计。原位拉曼光谱已成为一种关键工具，可提供对操作条件下表面过程的分子级见解，并讨论其发展、优势和配置。本文重点介绍了近年来析氢反应和析氧反应中催化剂-电解质界面的新发现，尤其是界面水分子态。最后，讨论了原位拉曼技术在电催化中的挑战和未来方向，强调了它们在促进理解和指导新型催化剂设计方面的重要性。