Amir Gasmi

Author response for "Identification and understanding of activation procedures critical for nickel-based anodes in anion-exchange membrane fuel cell"

Simon Amigues, Nicolas Bibent, Eliot Petitdemange, Estelle Guyennot et autres

Operando monitoring of iridium based electrocatalysts supported on doped tin oxide

Lucie Badouric, Sara Cavalière, Amir Gasmi, Arpita Ghosh

We are developing oxygen evolution reaction (OER) catalysts based on IrO2 nanoparticles deposited into doped tin oxide nanofibers showing promising activity and stability. Operando XAS will provide fundamental insights into both the active electrocatalysts and their support materials, enabling further optimization. Specifically, …

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Unraveling the Blessing and Curse of the IrCu Aerogel Catalyst for the Oxygen Evolution Reaction

Amir Gasmi, Meryem Ennaji, Carlos A. Campos-Roldán, Morgane Stodel et autres

Improving the intrinsic activity and utilization of iridium (Ir)-based catalysts for the oxygen evolution reaction (OER) is essential to the market penetration of proton exchange membrane water electrolyzers (PEMWEs). However, conventional electronic structure modulation strategies relying on the introduction of transition metals …

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Operando investigation of electrocatalysis in Fuel Cell and Electrocatalysis Cell

Jakub Drnec, Meryem Ennaji, Amir Gasmi, Estelle Guyennot et autres

In this proposal, operando wide-angle X-ray scattering (WAXS) will be employed to investigate the oxidation–reduction behavior of Pt electrocatalysts during cyclic voltammetry in fuel cell environments. Combined operando WAXS and small-angle X-ray scattering (SAXS) measurements will be used to monitor changes in …

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Identification and understanding of activation procedures critical for nickel-based anodes in anion-exchange membrane fuel cells

Simon Amigues, Nicolas Bibent, Eliot Petitdemange, Estelle Guyennot et autres

Without activation, no power. The start-up of anion-exchange-membrane fuel cells with nickel-based anodes requires specific activation protocols due to the initial surface oxidation of metallic nickel.

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Correction: Identification and understanding of activation procedures critical for nickel-based anodes in anion-exchange membrane fuel cells

Simon Amigues, Nicolas Bibent, Eliot Petitdemange, Estelle Guyennot et autres

Correction for ‘Identification and understanding of activation procedures critical for nickel-based anodes in anion-exchange membrane fuel cells’ by Simon Amigues et al. , Energy Environ. Sci. , 2026, 19 , 5488–5504, https://doi.org/10.1039/D6EE03112A.

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Operando X-ray Total Scattering for PEM Water Electrolyzer Catalysts.

Meryem Ennaji, Amir Gasmi, Morgane Stodel, Frédéric Jaouen et autres

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Operando X-ray Scattering for Electrocatalysis and Beyond

Raphaël Chattot, Meryem Ennaji, Amir Gasmi, Jakub Drnec

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Promoting Surface Distortion for Oxygen Electrocatalysis

Amir Gasmi, Meryem Ennaji, Carlos A. Campos‐Roldàn, Jakub Drnec et autres

Green hydrogen offers a sustainable alternative to fossil fuels, with proton exchange membrane fuel cells (PEMFCs) and water electrolysers (PEMWEs) playing key roles in its production and use1,2. However, the oxygen reduction reaction (ORR) at the cathode of PEMFCs and the oxygen …

Metal-oxide phase transition of platinum nanocatalyst below fuel cell open-circuit voltage

Carlos A. Campos‐Roldàn, Amir Gasmi, Meryem Ennaji, Morgane Stodel et autres

The long-term stability of Pt-based catalysts is critical to the reliability of proton exchange membrane fuel cells (PEMFCs), and receives constant attention. However, the current knowledge of Pt oxidation is restricted to unrealistic PEMFC cathode environment or operation, which questions its practical …

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Primacy of lattice distortion over strain in platinum fuel cell nanoalloy catalysts

Amir Gasmi, Meryem Ennaji, Rémi Bacabe, Morgane Stodel et autres

Comprehensive wide-angle X-ray scattering analyses demonstrate that local lattice strain plays a key role in governing the activity and long-term stability of bimetallic Pt-based catalysts.

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Operando X-Ray Scattering for Electrocatalysis and Beyond

Meryem Ennaji, Amir Gasmi, Simon Amigues, Deborah J. Jones et autres

The energy transition stands as one of the greatest challenges of today’s society. In this context, electrocatalyst materials at the heart of electrochemical energy conversion devices such as fuel cells and water electrolyzers are expected to play an increasing crucial role in …