Single atoms agglomeration and redispersion dynamics in heterogeneous catalysis targeting co2 conversion and valorization

The data is part of the PhD thesis defended at The University of Campinas (Universidade Estadual de Campinas, UNICAMP) by Leonardo da Silva Sousa on May 14th 2025 This dataset includes a combination of advanced spectroscopic and chemometric techniques to investigate the formation, agglomeration, and redispersion dynamics of supported metallic phases in heterogeneous catalysis, specifically targeting CO and CO2 conversion.

Key techniques include in situ X-ray Absorption Fine Structure (XAFS), used to track changes in oxidation state and local coordination environment of active metal species under reaction conditions; Diffuse Reflectance Infrared Fourier Transform Spectroscopy (DRIFTS), applied to monitor surface intermediates and adsorbates; and Modulation Excitation with Phase-Sensitive Detection (ME-PSD-DRIFTS), which enhances sensitivity and selectivity in detecting dynamic species.