Unveiling the atomic-scale surface structure of electrocatalysts and nature of electrochemical interfaces under reaction conditions
Christopher Kley a b
a Helmholtz Young Investigator Group Nanoscale Operando CO2 Photo-Electrocatalysis, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, 14109 Berlin, Germany
b Department of Interface Science, Fritz Haber Institute of the Max Planck Society, 14195 Berlin, Germany
Materials for Sustainable Development Conference (MATSUS)
Proceedings of MATSUS Spring 2024 Conference (MATSUS24)
#InOpCat - In situ and operando characterization of electrocatalytic interfaces
Barcelona, Spain, 2024 March 4th - 8th
Organizers: Esther Alarcon-Llado, Jesus Barrio Hermida and Paula Sebastian Pascual
Invited Speaker, Christopher Kley, presentation 523
DOI: https://doi.org/10.29363/nanoge.matsus.2024.523
Publication date: 18th December 2023

Recent advances in electrochemical atomic force microscopy will be presented, with a focus on deciphering in situ an electrocatalyst’s morphological, structural, electrical and chemical properties at nanometer- and atomic-scale resolution. Selected results include unraveling the surface structure of state-of-the-art electrocatalysts during CO2RR, COR, and OER, as well as probing ion-induced viscosity variations in nanoconfined electrolytes alongside with a material’s local electrical conductivity. Complementary spectroscopic approaches, including in situ ATR-SEIRAS and on-line DEMS, provide direct molecular-level insights into reaction intermediates and interfacial hydration layer structures during CO2RR. A perspective will be given on multimodal approaches for nanoscale catalysis and rational innovation of energy conversion materials.


 

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