Walid Baaziz

Development of hybrid amine-functionalized diatom-based materials for efficient formaldehyde adsorption under dry and humid conditions

Zakia Souissen, Anaïs Becker, Fabrice Vigneron, Vasiliki Papaefthymiou et autres

Diatomite was functionalized with 3-aminopropyltriethoxysilane (APTES) to develop efficient adsorbents for formaldehyde removal. Two APTES grafting strategies were used to optimize adsorbent performance: APTES grafting on diatomite (N/Dt) and APTES xerogel growth on diatomite (NX/Dt). Specific surface area and pore volume of …

fr (code pays fourni par la source)

Hematite Reduction upon Ti Doping in Hydrothermally Synthesized Photoanodes

Léon Schmidt, Basile Bataillé, Emma Gaury, Walid Baaziz et autres

Several studies report on the use of hematite-based nanorods (α-Fe 2 O 3 ) for solar water splitting (SWS) applications, following various synthesis pathways with strong dispersion of the resulting photoelectrochemical (PEC) performances. Herein, we investigate the origin of strong PEC response …

fr (code pays fourni par la source)

Microstructural evolution and sintering of Pt nanoclusters on diatomite under CO oxidation conditions: An operando and 3D TEM study

Othmane Darouich, Dris Ihiawakrim, Sana Labidi, Ovidiu Ersen et autres

Abstract In this work, we investigated the microstructural evolution and thermal stability of platinum (Pt) nanoparticles supported on natural diatomite bio-silica (SiO2) during catalytic carbon monoxide (CO) oxidation using advanced transmission electron microscopy (TEM) techniques. Pt nanoparticles with an average size of …

fr (code pays fourni par la source)

Nano-Confinement-Directed Crystallization of Morphochiral Gold Nanohelices with Kinetically Programmable Geometry

Reïko Oda, Zakaria Anfar, Masahiro Nakaya, Wijak Yospanya et autres

fr, jp (code pays fourni par la source)

Nanoparticle‐Size Effects on Iron Reduction and Carbidization in Silica‐Supported Catalysts Under H 2 and CO

Aliou Sadia Traoré, Walid Baaziz, Yong Zhou, Andrei Khodakov et autres

ABSTRACT Iron‐based catalysts are frequently employed in heterogeneous catalysis reactions, particularly in the Fischer–Tropsch (FT) synthesis. The understanding of phase transformations of iron‐based catalysts under reductive atmosphere remains incomplete due to the high sensitivity to activation and reaction conditions. The quantitative use …

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Unveiling selectivity shift in CO2 methanation with TiO2 supported subnanometer Ru particles

Seema Shafiq, Clément Molinet‐Chinaglia, Carole Le Berre, Vincent Collière et autres

fr (code pays fourni par la source)

Dataset for the paper "Hematite reduction upon Ti doping in hydrothermally synthesized photoanodes"

Léon Schmidt, Basile Bataillé, Emma Gaury, Walid Baaziz et autres

Dataset for the paper "Hematite reduction upon Ti doping in hydrothermally synthesized photoanodes". A readme.txt file is provided to guide users to the software required to open different datasets. Filenames are according to sample ID used in the paper, i.e. S1-S2-S3.

fr (code pays fourni par la source)

On the properties and origin of mesopore morphologies in dealuminated Faujasite Y zeolites

Valentina Girelli Consolaro, Walid Baaziz, Tom Ferté, Ovidiu Ersen

Faujasite Y zeolites (FAU-Y) represent one of the most important categories of heterogeneous catalysts. They are historically known for their crucial role in the refining industry, and they have growing potential for upgrading bio-based products today. However, the thermal stability, acidity, and …

fr (code pays fourni par la source)

Toposelective Functionalization of Solution‐Processed Transition Metal Dichalcogenides with Metal Nanoparticles via Defect Engineering

Stefano Ippolito, Verónica Montes‐García, Adam G. Kelly, Valentina Girelli Consolaro et autres

Solution-processed semiconducting transition metal dichalcogenides commonly serve as quintessential 2D substrates and templates to develop hybrid structures with novel and/or enhanced properties and performance. However, the effects and control of their ubiquitous and abundant structural defects are still poorly explored and understood. …

fr, pt, es, de, ie (code pays fourni par la source)

Challenges in Chirality Induction in Iron Oxide Nanoparticles: In Situ vs Ex Situ Growth on Helical Nanoplatforms

Gautier Duroux, Matheus de Souza Lima Mendes, Iryna Makarchuk, Théo Lucante et autres

The integration of chiral and magnetic properties has gained increasing interest due to its potential for enabling magneto-chiral phenomena. However, the development of nanoscale chiral systems that exhibit strong responsiveness to both light and magnetic fields remains largely underexplored. In this context, …

fr (code pays fourni par la source)

3D and in situ electron microscopy studies of the nucleation and growth processes of cobalt-based nanoparticles synthesized via thermal decomposition on carbon nanotubes

Mohamed Alae Ait Kerroum, Dris Ihiawakrim, Ovidiu Ersen, Walid Baaziz

capillarity at low temperatures. Then, a porous micellar aspect of the liquid was observed in relation with the increasing supply of coalescent precursor from the CNT tip. At higher temperatures (∼300 °C), the structure was densified, and the first separated entities formed …

fr (code pays fourni par la source)

Correlative study of hematite-based photoanodes for solar water splitting by transmission electron and X-ray microscopies

Léon Schmidt, Bilal Meddas, Walid Baaziz, Dana Stanescu et autres

International audience