Accéder directement au contenu

Tristan Asset

13
Documents

Présentation

Chargé de recherche ------------------- **Research Institute**: Institut de Chimie et Procédés pour l'Énergie, l'Environnement et la Santé (ICPEES), UMR CNRS 7515 **Research group**: Electrochimie et Conversion d’Energie. <t.asset@unistra.fr> Office: Bâtiment R3, N2 Laboratory: Bâtiment R3, N1; R5, N1. **Keywords**: Electrocatalysis; CO2 Reduction Reaction, Oxygen Reduction Reaction, Nitrogen Reduction Reaction; Nanomaterials --- Research topics --------------- - Ammonia synthesis by electrochemical reduction of dinitrogen, including (i) modifying the electrocatalyst // electrolyte design and reactant nature to tune the N2 reduction selectivity; (ii) designing next-generation electrocatalysts for the N2 reduction (Ni-based structures, bifunctional electrocatalysts). - The assessment of the electrocatalyst // electrolyte interface properties by the coupling (i) microscopy or physico-chemical methods and (ii) electrochemistry. --- Past experience --------------- - October 2020 – September 2021: Postdoctoral scholar at the university of Montpellier, in Frédéric Jaouen’s group on the CO2 reduction reaction in ‘zero-gap’ electrolyzers and the design of noble metal-free and ultra-low noble metal containing electrocatalysts for the oxygen reduction reaction and the hydrogen oxidation reaction. - January 2018 – September 2020: Postdoctoral scholar and lab manager at the university of New Mexico and the university of California Irvine, in Plamen Atanassov’s group on the CO2 reduction reaction on metal-free electrocatalysts, the oxygen reduction reaction on Pt-based electrocatalysts and the nitrogen reduction reaction. - October 2017 – December 2017: Research engineer in the laboratory of electrochemistry and physicochemistry of materials and interfaces (LEPMI), in Marian Chatenet’s group, on the functionalization of carbonaceous materials for PEMFCs applications. - October 2014 – September 2017: PhD student at university of Grenoble and university of Liège, under the supervision of Laëtitia Dubau, Nathalie Job and Frédéric Maillard, on the design and characterization of advanced Pt-based electrocatalysts for the oxygen reduction reaction. --- Selected publications --------------------- - K. Kumar, **T. Asset**, X. Li, Y. Liu, X. Yan, Y. Chen, M. Mermoux, X. Pan, P. Atanassov, F. Maillard, L. Dubau, “Fe-N-C Electrocatalysts’ Durability: Effects of Single Atoms’ Mobility and Clustering”, ACS Catal. (2021) 11, 484−494, DOI: 10.1021/acscatal.0c04625 - **T. Asset**, P. Atanassov, “Surface Chemistry, Morphology and Reactivity of Iron-Nitrogen-Carbon Catalysts for Proton Exchange Membrane Fuel Cells”, Joule, 4 (2020), 33-44, DOI: 10.1016/j.joule.2019.12.002 - **T. Asset**, S. T. Garcia, S. Herrera, N. Andersen, Y. Chen, E. J. Petersen, I. Matanovic, K. Artyushkova, J. Lee, S. D. Minteer, S. Dai, X. Pan, K. Chavan, S. C. Barton, P. Atanassov, “Investigating the Nature of the Active Sites for the CO2 Reduction Reaction on Carbon-Based Electrocatalysts”, ACS Catal. 9 (2019) 7668 – 7678, DOI: 10.1021/acscatal.9b01513 - **T. Asset**, R. Chattot, F. Maillard, L. Dubau, Y. Ahmad, N. Batisse, M. Dubois, K. Guérin, F. Labbé, R. Metkemeijer, S. Berthon-Fabry, M. Chatenet, “Activity and Durability of Platinum-Based Electrocatalysts Supported on Bare or Fluorinated Nanostructured Carbon Substrates”, J. Electrochem. Soc., 165 (6) (2018) F3346-F3358. DOI: 10.1149/2.031806jes - **T. Asset**, N. Job, Y. Busby, A. Crisci, V. Martin, V. Stergiopoulos, C. Bonnaud, A. Serov, V. Martin, R. Chattot, N. Job, L. Dubau, F. Maillard, “Porous Hollow PtNi/C Electrocatalysts: Carbon Support Considerations to Meet Performance and Stability Requirements”, ACS Catal., 8 (2018) 893-903. DOI: 10.1021/acscatal.7b03539

Publications

laetitiadubau
Image document

Imaging Heterogeneous Electrocatalyst Stability and Decoupling Degradation Mechanisms in Operating Hydrogen Fuel Cells

Isaac Martens , Antonis Vamvakeros , Nicolas Martinez , Raphaël Chattot , Janne Pusa
ACS Energy Letters, 2021, pp.2742-2749. ⟨10.1021/acsenergylett.1c00718⟩
Article dans une revue hal-03290343v1
Image document

Fe-N-C Electrocatalysts' Durability: Effects of Single Atoms' Mobility and Clustering

Kavita Kumar , Tristan Asset , Xiaoyan Li , Yuanchao Liu , Xingxu Yan
ACS Catalysis, 2020, pp.484-494. ⟨10.1021/acscatal.0c04625⟩
Article dans une revue hal-03092479v1

Disentangling the Degradation Pathways of Highly Defective PtNi/C Nanostructures – An Operando Wide and Small Angle X-Ray Scattering Study

Tristan Asset , Cedric Gommes , Jakub Drnec , Pierre Bordet , Raphaël Chattot
ACS Catalysis, 2019, 9 (1), pp.160-167. ⟨10.1021/acscatal.8b02665⟩
Article dans une revue hal-01906397v1

A Review on Recent Developments and Prospects for the Oxygen Reduction Reaction on Hollow Pt-alloy Nanoparticles

Tristan Asset , Raphaël Chattot , Marie Fontana , Benjamin Mercier-Guyon , Nathalie Job
ChemPhysChem, 2018, 19 (13), pp.1552-1567. ⟨10.1002/cphc.201800153⟩
Article dans une revue hal-02334300v1
Image document

Activity and Durability of Platinum-Based Electrocatalysts Supported on Bare or Fluorinated Nanostructured Carbon Substrates

Tristan Asset , Raphaël Chattot , Frédéric Maillard , Laetitia Dubau , Yasser Ahmad
Journal of The Electrochemical Society, 2018, 165 (6), pp.F3346-F3358. ⟨10.1149/2.031806jes]⟩
Article dans une revue hal-01785111v1

Porous Hollow PtNi/C Electrocatalysts: Carbon Support Considerations To Meet Performance and Stability Requirements

Tristan Asset , Nathalie Job , Yan Busby , Alexandre Crisci , Vincent Martin
ACS Catalysis, 2018, 8 (2), pp.893-903. ⟨10.1021/acscatal.7b03539⟩
Article dans une revue hal-02067840v1

Utilization of graphitized and fluorinated carbon as platinum nanoparticles supports for application in proton exchange membrane fuel cell cathodes

José Bott-Neto , Tristan Asset , Frédéric Maillard , Laetitia Dubau , Yasser Ahmad
Journal of Power Sources, 2018, 404, pp.28 - 38. ⟨10.1016/j.jpowsour.2018.10.004⟩
Article dans une revue hal-01895938v1

Surface distortion as a unifying concept and descriptor in oxygen reduction reaction electrocatalysis

Raphaël Chattot , Olivier Le Bacq , Vera Beermann , Stefanie Kühl , Juan Herranz
Nature Materials, 2018, 17 (9), pp.827-833. ⟨10.1038/s41563-018-0133-2⟩
Article dans une revue hal-01856128v1

Effect of Atomic Vacancies on the Structure and the Electrocatalytic Activity of Pt-rich/C Nanoparticles: A Combined Experimental and Density Functional Theory Study

Olivier Le Bacq , Alain Pasturel , Bruno Chattot , Jaysen Nelayah , Tristan Asset
ChemCatChem, 2017, 9 (12, SI), pp.2324-2338. ⟨10.1002/cctc.201601672⟩
Article dans une revue hal-01914007v1

Elucidating the Mechanisms Driving the Aging of Porous Hollow PtNi/C Nanoparticles by Means of CO ads Stripping

Tristan Asset , Raphaël Chattot , Jakub Drnec , Pierre Bordet , Nathalie Job
ACS Applied Materials & Interfaces, 2017, 9 (30), pp.25298 - 25307. ⟨10.1021/acsami.7b05782⟩
Article dans une revue hal-01636061v1

Atomic-Scale Snapshots of the Formation and Growth of Hollow PtNi/C Nanocatalysts

Raphaël Chattot , Tristan Asset , Jakub Drnec , Pierre Bordet , Jaysen Nelayah
Nano Letters, 2017, 17 (4), pp.2447 - 2453. ⟨10.1021/acs.nanolett.7b00119⟩
Article dans une revue hal-01636065v1

Beyond Strain and Ligand Effects: Microstrain-Induced Enhancement of the Oxygen Reduction Reaction Kinetics on Various PtNi/C Nanostructures

Raphaël Chattot , Tristan Asset , Pierre Bordet , Jakub Drnec , Laetitia Dubau
ACS Catalysis, 2016, 7 (1), pp.398 - 408. ⟨10.1021/acscatal.6b02356⟩
Article dans une revue hal-01636067v1

Defects do Catalysis: CO Monolayer Oxidation and Oxygen Reduction Reaction on Hollow PtNi/C Nanoparticles

Laetitia Dubau , Jaysen Nelayah , Simona Moldovan , Ovidiu Ersen , Pierre Bordet
ACS Catalysis, 2016, 6 (7), pp.4673-4684. ⟨10.1021/acscatal.6b01106⟩
Article dans une revue hal-01355740v1