A comprehensive understanding of the microscopic reaction mechanisms at the gas-solid-liquid electrochemical interfaces is urgently required for the development of advanced electrocatalysts applied in burgeoning sustainable energy conversion systems. In-situ synchrotron radiation Fourier transform infrared (SR-FTIR) spectroscopy is one of the most powerful techniques for investigating the evolving dynamics of reactive intermediates during electrocatalytic reactions. In this review, we methodically summarize the recent progress in the research of dynamic mechanisms for valuable electrocatalytic reactions based on in-situ SR-FTIR methodology. Moreover, the merits and drawbacks of SR-FTIR spectroscopy, the design principles of infrared beam?setups and in-situ cells, as well as the in-situ measurement criteria are also discussed in detail. Lastly, the potential challenges and opportunities in this field are prudently stated. This review is expected to stimulate a broad interest in the material science and electrochemistry communities for exploring the dynamic mechanisms of prominent catalysis?at the atomic/molecular level by using SR-based spectroscopy.

中文翻译：

---

多相电催化界面反应中间体的原位同步辐射红外光谱鉴定

为了开发应用于新兴的可持续能源转换系统的先进电催化剂，迫切需要全面了解气-固-液电化学界面的微观反应机制。原位同步辐射傅立叶变换红外 (SR-FTIR) 光谱是研究电催化反应过程中反应中间体演化动力学的最强大技术之一。在这篇综述中，我们系统地总结了基于原位 SR-FTIR 方法的有价值的电催化反应的动力学机制研究的最新进展。此外，还详细讨论了 SR-FTIR 光谱的优缺点、红外光束装置和原位电池的设计原则，以及原位测量标准。最后，审慎地陈述了这一领域的潜在挑战和机遇。这篇综述有望激发材料科学和电化学界的广泛兴趣，以通过使用基于 SR 的光谱学在原子/分子水平上探索显着催化的动力学机制。