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DTSTART;TZID=Europe/Paris:20250918T140000
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UID:11666-1758204000-1758209400@fermi.univ-tlse3.fr
SUMMARY:From Heat to Electrons: Nickel–Ceria Interfaces in Thermo- and Electro-Catalysis for CO₂ Conversion. - (Spiros Zafeiratos /  LPCNO / Seminar). – 18/09/2025\, 14H
DESCRIPTION:Séminaire LPCNO \nSpiros Zafeiratos  ICPEES\, Strasbourg \n GP seminar room\, INSA\, Build. 27\, Room 2.20 (2nd floor left)\n \n  \nSummary\nNickel–ceria compounds are widely studied for their role in CO₂ conversion technologies\, spanning both thermocatalytic and electrochemical applications. This presentation provides an overview of Ni–CeO₂ catalysts and cermets\, focusing on their surface chemistry\, redox behavior\, and catalytic performance under relevant operating conditions. Based on our recent studies [1–7]\, the talk will cover the synthesis of Ni-doped ceria nanoparticles\, the influence of doping on surface reducibility\, and the structural evolution of Ni–Ce interfaces under thermal treatment and CO₂ methanation conditions. In the context of electrochemical applications\, the presentation will address Ni–CeO₂-based electrodes (cermets) for CO₂ and steam electrolysis\, with emphasis on operando investigations of surface oxidation\, electrochemical response\, and interface stability. Particular attention is given to the role of surface states\, oxygen vacancies\, and metal–support interactions in governing activity and long-term performance. By combining insights from both thermal and electrochemical perspectives\, this work aims to contribute to a deeper understanding of Ni–CeO₂ interface behavior to support the design of more robust and efficient materials for CO₂ conversion and energy-related applications.
URL:https://fermi.univ-tlse3.fr/event/from-heat-to-electrons-nickel-ceria-interfaces-in-thermo-and-electro-catalysis-for-co%e2%82%82-conversion-spiros-zafeiratos-lpcno-seminar-18-09-2025-10h/
LOCATION:Salle 220\, LPCNO\, INSA – LPCNO : 135 avenue de Rangueil\, toulouse\, 31077\, France
CATEGORIES:Events,LPCNO,Seminars
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