Pulse Brain · Growing Health Evidence Index
Tier 3 — Observational / field trialConference paper

Probing the Persistence of Ce3+ Species on Ceria during Redox Cycling by Modulation-Excitation and Resonant Photoelectron Spectroscopy (MES–RPES)

Luis Cardenas, Cyril Hachemi, Hadi Dib, M. Debbichi, Michaël Badawi, Calley Eads, Maya Ibrahim, S. Loridant, Jan Knudsen, Helena Kaper

2025

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Summary

This laboratory investigation applies advanced spectroscopic techniques—modulation-excitation spectroscopy combined with resonant photoelectron spectroscopy—to probe the persistence and behaviour of Ce³⁺ species on cerium oxide surfaces during repeated redox cycling. The work contributes to fundamental understanding of ceria's redox chemistry at the molecular level. Whilst the research is materials science-focused rather than agronomic, improved characterisation of ceria redox properties may inform development of more efficient ceria-based catalysts for industrial applications.

UK applicability

This fundamental materials science research has limited direct applicability to UK farming systems or soil health practice. However, advances in understanding cerium oxide chemistry may eventually contribute to catalyst development for industrial processes relevant to food production chains or environmental remediation.

Key measures

Ce³⁺ and Ce⁴⁺ species abundance and distribution on ceria surfaces; photoelectron spectroscopy data; surface redox cycling behaviour

Outcomes reported

The study characterised the persistence of Ce³⁺ species on cerium oxide surfaces during repeated redox cycling using modulation-excitation spectroscopy combined with resonant photoelectron spectroscopy. The research measured oxidation state distributions and surface chemistry changes under cyclic redox conditions.

Theme
Measurement & metrics
Subject
Other / interdisciplinary
Study type
Research
Study design
Laboratory study
Source type
Conference paper
Status
Published
System type
Laboratory / in vitro
DOI
10.29363/nanoge.matsusspring.2026.719
Catalogue ID
BFmobghr9o-xmhzyy

Topic tags

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