Synthesis of bulk and supported catalysts by humid air gliding arc plasma
(2024)
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Details
- Authors
- Supervisors
- Gaigneaux, Eric
- Abstract
- Catalysts play a vital role in the chemical industry due to their economic and environmental benefits, making innovative production methods essential. Gliding arc plasma (GP) technology emerges as an eco-friendly, cost-effective approach for catalyst synthesis by generating reactive oxygen and nitrogen species with strong acidic and redox properties. This enables applications in gas depollution, wastewater treatment, surface modification, and heterogeneous catalyst production. This thesis delves into GP's potential for synthesizing metal (hydr)oxides and supported catalysts while addressing areas for improvement. It is structured in three parts: 1) Mechanism Investigation: Examines the roles of plasma species and specific factors in precursor oxidation-reduction and precipitation, aiming to predict precursor reactivity. 2) Optimization: Explores post-treatment steps, "no-cooling" system, and plasma-activated water as a synthesis medium to develop better catalysts and using more interesting synhtesis conditions. 3) Novel Catalyst Synthesis: Demonstrates GP's versatility by producing supported catalysts like Au/TiO₂ and SnO₂. Overall, the research of this thesis contributes to a deeper understanding of GP as catalyst synthesis method, offering new insights and strategies for optimization.
- Affiliations
Citations
Hanon, F. (2024). Synthesis of bulk and supported catalysts by humid air gliding arc plasma. https://hdl.handle.net/2078.5/241949