01 | Overview
The in situ plasma synchrotron XAFS cell combines a non-thermal plasma reaction environment with synchrotron-based XAS characterisation, enabling XANES and EXAFS measurements under true discharge conditions. It allows real-time monitoring of oxidation-state changes, local coordination evolution, and structural dynamics of catalytic active sites during reaction.

02 | Key Benefits
Conventional ex situ methods often fail to capture the true working state of catalysts under plasma conditions. This platform enables direct observation of active-site evolution under near-operando conditions, helping researchers uncover plasma–catalyst interactions, structural changes, and reaction pathways. It provides valuable support for catalyst design, mechanistic analysis, and structure–performance correlation studies.

03 | Applications
The system is suitable for a wide range of gas–solid plasma catalytic reactions, including CO₂ hydrogenation, ammonia synthesis, methane activation, and VOC abatement. It is compatible with supported metal catalysts, metal oxides, bimetallic systems, and single-atom catalysts, and is widely used for active-site identification, oxidation-state analysis, and catalyst structure evolution studies.