2023年10月18日 · Herein, we highlight advanced X-ray spectroscopies beyond conventional XAS, with emphasis on their unprecedented capabilities of deciphering key configurations of electrocatalysts.

2023年2月17日 · In this review, we provide an overview of the fundamental concepts of X-ray absorption spectroscopy (XAS) and then comprehensively review the setup and application of in situ XAS, introducing electrochemical XAS cells, experimental methods, as well as primary functions on catalytic applications.

2020年9月28日 · The high penetration depth of hard X-rays in the XAS method provides obvious advantages for in situ and operando studies by ensuring sufficient flexibility in the choice of sample environment geometry and materials used. However, in many cases, spectroscopical investigations in the soft X-ray range (with X-ray energies below 5 keV) can provide ...

2021年6月1日 · This review will present recent in situ XAS studies on single-atom, metal, and metal oxide electrocatalysts, highlighting the approaches taken to achieve surface sensitivity by careful designing of the sample under investigation.

2019年6月3日 · In situ X-ray absorption spectroscopy (XAS) has become a powerful technique to obtain oxidization states, electronic structure, and local coordination environment under reaction conditions.

2018年7月3日 · Advanced in situ/operando synchrotron-based X-ray characterization techniques are powerful tools for providing valuable information about the complicated reaction mechanisms in LIBs.

2013年6月3日 · In situ X-ray absorption spectroscopy (XAS) is a powerful technique that can be applied to electrochemical systems, with the ability to elucidate the chemical nature of electrocatalysts under reaction conditions.

In situ X-ray absorption spectroscopy (XAS) has become a powerful technique to obtain oxidization states, electronic structure, and local coordination environment under reaction conditions.

2021年3月1日 · In situ X-ray absorption spectroscopy is a useful characterization tool for platinum nanocatalysis. Studies involving catalysts for use in the oxygen reduction reaction, chlorine evolution reaction, and CO oxidation have been summarized in detail.

In this review, the identification/quantification of reactant activation/conversion and mass transfer (steps 4 and 5) is discussed in details using the in situ/operando techniques, especially the infrared (IR), Raman, and X-ray absorption spectroscopy (XAS).