Nanocatalysis: a breeze of fresh air (Invited Lecture)
(2024) International Conference on Nanomaterials and their Applications (nanoMAT) — Location: Hammamet, Tunesia (2024.November.1AD)
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- Abstract
- Heterogeneous catalysis relies on our ability to design, optimize, stabilize, and combine nanometric entities and features at the surface of functional materials. In this communication, we will highlight the development of continuous, air-supported processes that offer unexplored avenues for the preparation of innovative and effective solid catalysts. Aerosol processes are alluring for the continuous, large scale, and tailored production of divided nanomaterials,[1] and in particular of advanced heterogeneous (nano)catalysts.[2] Beyond the typical drying and aggregation of preformed particles via spray drying (or atomization), reactive aerosol processes allow synthesizing tailored-made catalysts in a bottom-up fashion, with tunable surface properties, textures, compositions, surface functionalities, etc. Inorganic polycondensation reactions happen in seconds, confined in “dynamic microreactors” (i.e. droplets). We explain why this peculiar mode of preparation has led to solid nanocatalysts showing high-performance in various applications including olefin metathesis, glycerol upgrading, olefin epoxidation, CO2 hydrogenation, and bioalcohol dehydrogenation and dehydration.[3] We will also demonstrate the concept of chemo-enzymatic heterogeneous catalysts obtained via spray techniques.[4] Finally, we will show the proof of concept of spark ablation as a tool to deposit metal nanoparticles on the surface of powdery catalysts supports.[5] Our objective is to illustrate the tremendous possibilities offered by airborne preparation processes, which arguably represent major routes of innovation, not only in the field of catalyst preparation, but also more broadly in the mushrooming nanotechnology field.
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Debecker, D. (2024). Nanocatalysis: a breeze of fresh air (Invited Lecture). International Conference on Nanomaterials and their Applications (nanoMAT), Hammamet, Tunesia. https://hdl.handle.net/2078.5/240293