M
Michel Lefèvre
Researcher at Institut national de la recherche scientifique
Publications - 41
Citations - 11534
Michel Lefèvre is an academic researcher from Institut national de la recherche scientifique. The author has contributed to research in topics: Catalysis & Proton exchange membrane fuel cell. The author has an hindex of 31, co-authored 41 publications receiving 10234 citations. Previous affiliations of Michel Lefèvre include General Motors.
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Journal ArticleDOI
Iron-based catalysts with improved oxygen reduction activity in polymer electrolyte fuel cells.
TL;DR: In this paper, a microporous carbon-supported iron-based catalysts with active sites believed to contain iron cations coordinated by pyridinic nitrogen functionalities in the interstices of graphitic sheets within the micropores was produced.
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Recent advances in non-precious metal catalysis for oxygen-reduction reaction in polymer electrolyte fuel cells
Frédéric Jaouen,Eric Proietti,Michel Lefèvre,Régis Chenitz,Jean-Pol Dodelet,Gang Wu,Hoon T Chung,Christina Johnston,Piotr Zelenay +8 more
TL;DR: In this paper, the authors focus on the new synthesis methods that have led to these breakthroughs and analyze the improvements required from NPMC-based catalysts to match the performance of Pt-based cathodes, even at high current density.
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Iron-based cathode catalyst with enhanced power density in polymer electrolyte membrane fuel cells
Eric Proietti,Frédéric Jaouen,Michel Lefèvre,Nicholas Larouche,Juan Tian,Juan Herranz,Jean-Pol Dodelet +6 more
TL;DR: This work reports an iron-acetate/phenanthroline/zeolitic-imidazolate-framework-derived electrocatalyst with increased volumetric activity and enhanced mass-transport properties in polymer-electrolyte-membrane fuel cells.
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Cross-laboratory experimental study of non-noble-metal electrocatalysts for the oxygen reduction reaction
Frédéric Jaouen,Juan Herranz,Michel Lefèvre,Jean-Pol Dodelet,Ulrike I. Kramm,Iris Herrmann,Peter Bogdanoff,Jun Maruyama,Toru Nagaoka,Arnd Garsuch,Jeff Dahn,Tim S. Olson,Svitlana Pylypenko,Plamen Atanassov,Eugene A. Ustinov +14 more
TL;DR: Nine non-noble-metal catalysts from five different laboratories were investigated for the catalysis of O(2) electroreduction in an acidic medium, and the nitrogen and metal seem to be present in sufficient amounts in the NNMCs and do not limit activity.
Journal ArticleDOI
Structure of the catalytic sites in Fe/N/C-catalysts for O2-reduction in PEM fuel cells
Ulrike I. Kramm,Ulrike I. Kramm,Juan Herranz,Nicholas Larouche,Thomas M. Arruda,Michel Lefèvre,Frédéric Jaouen,Peter Bogdanoff,Sebastian Fiechter,Irmgard Abs-Wurmbach,Sanjeev Mukerjee,Jean-Pol Dodelet +11 more
TL;DR: Among the five Fe-species identified in these catalysts, only D1 and D3 display catalytic activity for the oxygen reduction reaction (ORR) in the acid medium, with D3 featuring a composite structure with a protonated neighbour basic nitrogen and being by far the most active species.