Wang Jiali, Hsu Chia-Shuo, Wu Tai-Sing, Chan Ting-Shan, Suen Nian-Tzu, Lee Jyh-Fu, Chen Hao Ming
Department of Chemistry and Center for Emerging Materials and Advanced Devices, National Taiwan University, Taipei, 10617, Taiwan.
National Synchrotron Radiation Research Center, Hsinchu, 30076, Taiwan.
Nat Commun. 2023 Oct 18;14(1):6576. doi: 10.1038/s41467-023-42370-8.
Realizing viable electrocatalytic processes for energy conversion/storage strongly relies on an atomic-level understanding of dynamic configurations on catalyst-electrolyte interface. X-ray absorption spectroscopy (XAS) has become an indispensable tool to in situ investigate dynamic natures of electrocatalysts but still suffers from limited energy resolution, leading to significant electronic transitions poorly resolved. Herein, we highlight advanced X-ray spectroscopies beyond conventional XAS, with emphasis on their unprecedented capabilities of deciphering key configurations of electrocatalysts. The profound complementarities of X-ray spectroscopies from various aspects are established in a probing energy-dependent "in situ spectroscopy map" for comprehensively understanding the solid-liquid interface. This perspective establishes an indispensable in situ research model for future studies and offers exciting research prospects for scientists and spectroscopists.
实现用于能量转换/存储的可行电催化过程在很大程度上依赖于对催化剂-电解质界面动态构型的原子级理解。X射线吸收光谱（XAS）已成为原位研究电催化剂动态性质的不可或缺的工具，但仍存在能量分辨率有限的问题，导致重要的电子跃迁难以分辨。在此，我们重点介绍超越传统XAS的先进X射线光谱，强调它们在破译电催化剂关键构型方面前所未有的能力。通过一个探测能量相关的“原位光谱图”，从各个方面建立了X射线光谱的深刻互补性，以全面理解固液界面。这一观点为未来的研究建立了一个不可或缺的原位研究模型，并为科学家和光谱学家提供了令人兴奋的研究前景。
