Work

Evaluating Palladium 4d-to-2p X-ray Emission Spectroscopy for Characterizing Catalytically Relevant Species

Year: 2026

Type: article

Abstract: High Resolution Image Download MS PowerPoint Slide X-ray absorption spectroscopy (XAS) has diverse applications in materials characterization and catalysis. While K-edge XAS can provide detailed information about electronic and geometric structures for 3d transition metals, its application to second- and third-row transition metals is often limited by substantial core–hole lifetime broadenings. For the later transition metals, higher d-electron counts further reduce the electronic structural information content due to weak and absent 1s-to-nd pre-edge features. L-shell X-ray emission spectroscopy (XES), specifically 4d-to-2p XES, can overcome these limitations by accessing transitions that are dipole allowed and have intrinsically narrower core–hole lifetime broadenings. Herein, the utility of Pd 4d-to-2p XES for in situ catalysis research in both homogeneous and heterogeneous systems is explored through the study of well-defined PdO x H y complexes and Pd nanoparticles that are relevant to Pd-based catalysts.

Source: Inorganic Chemistry

DOI: 10.1021/acs.inorgchem.5c04266

Authors: Anna G. Scott, Sergey Peredkov, Angeles Lopez-Martin, Richard J. Lewis, Graham J. Hutchings, Serena DeBeer

Institutions: Max Planck Institute for Chemical Energy Conversion, Cardiff University

Language: English

Topic: X-ray Spectroscopy and Fluorescence Analysis

Subfield: Radiation

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $4,500

Funders: Alexander von Humboldt-Stiftung, Cardiff University, Max-Planck-Gesellschaft, European Regional Development Fund