Issue 35, 2024

Latest advances in in situ and operando X-ray-based techniques for the characterisation of photoelectrocatalytic systems

Abstract

In situ and operando X-ray techniques have emerged as powerful tools for unravelling the complex mechanisms underlying photoelectrochemical transformations. These techniques offer real-time insights into the dynamic processes occurring at the electrode–electrolyte interface during solar-driven water splitting and other PEC reactions. The present work aims to summarise the latest advances in in situ and operando X-ray absorption spectroscopy (XAS), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS) for the characterisation of photoelectrocatalytic systems and materials for the generation of solar fuels and value-added chemicals. This review highlights the recent advancements achieved using these techniques for elucidating the structural, chemical, and electronic properties of photoelectrocatalytic materials and interfaces during operation. Besides, this review provides technical guidance for performing these measurements, considering the experimental requirements for each of these spectroscopies. Further, we provide an overview of different state-of-the-art synchrotron-based techniques employed for the characterisation of photoelectrocatalytic materials, focusing on the possibilities of the studied techniques, cell designs and more relevant results.

Graphical abstract: Latest advances in in situ and operando X-ray-based techniques for the characterisation of photoelectrocatalytic systems

Article information

Article type
Review Article
Submitted
03 Maijs 2024
Accepted
19 Jūl. 2024
First published
25 Jūl. 2024
This article is Open Access
Creative Commons BY-NC license

J. Mater. Chem. A, 2024,12, 23125-23146

Latest advances in in situ and operando X-ray-based techniques for the characterisation of photoelectrocatalytic systems

M. Barawi, C. A. Mesa, L. Collado, I. J. Villar-García, F. Oropeza, V. A. de la Peña O'Shea and M. García-Tecedor, J. Mater. Chem. A, 2024, 12, 23125 DOI: 10.1039/D4TA03068K

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