Fe–N–C Electrocatalyst and Its Electrode: Are We Talking about the Same Material?
Source abstract
Abstract
Evaluation of the electrocatalyst performance data includes an electrode preparation step. Herein, we compare the structural composition of Fe–N–C materials, used to electrocatalyze the oxygen reduction reaction in proton-exchange membrane fuel cells, before and after catalyst layer preparation. The effects of this step on the electronic structure and local coordination of Fe were investigated by X-ray absorption (XAS) and emission spectroscopies (XES), for Fe–N–C materials prepared via different synthetic routes. This work underlines the importance of determining the Fe–N–C catalyst structure in the prepared electrode for further studies of the structure–activity–stability correlations.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Electrocatalysts for Energy Conversion · Fuel Cells and Related Materials · Semiconductor materials and devices
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
ESRF, The European Synchrotron, 71 Avenue des Martyrs, CS40220, 38043 Grenoble Cedex 9, France
Univ. Grenoble Alpes, Univ. Savoie Mont Blanc, CNRS, Grenoble INP, LEPMI, 38000 Grenoble, France
TU Darmstadt, Department of Chemistry, Catalysts and Electrocatalysts Group, Technical University of Darmstadt, Otto-Berndt-Str. 3, 64287 Darmstadt, Germany
ICGM, Univ. Montpellier, CNRS, ENSCM, 34293 Montpellier, France
Funding
Agence Nationale de la Recherche · Bundesministerium f?r Bildung und Forschung
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