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Letteratura scientifica selezionata sul tema "Cocatalyseurs"
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Articoli di riviste sul tema "Cocatalyseurs"
Mermoud, Ch. "Nouvelle Classe de Cocatalyseurs dans la Polymérisation Anionique du Caprolactame". Journal of Polymer Science Part C: Polymer Symposia 4, n. 2 (7 marzo 2007): 1097–103. http://dx.doi.org/10.1002/polc.5070040226.
Testo completoTesi sul tema "Cocatalyseurs"
Mohammedi, Ourida. "Catalyse de cetonisation des olefines terminales par des complexes du rhodium ou du palladium associes a differents cocatalyseurs systemes homogenes-systemes heterogenes". Paris 6, 1987. http://www.theses.fr/1987PA066532.
Testo completoMohammedi, Ourida. "Catalyse de cétonisation des oléfines terminales par des complexes du rhodium ou du palladium associés à différents cocatalyseurs systèmes homogènes, systèmes hétérogènes /". Grenoble 2 : ANRT, 1987. http://catalogue.bnf.fr/ark:/12148/cb376080814.
Testo completoMéndez, Medrano Ana Andrea. "Photocatalysts for Hydrogen Generation and Wastewater Treatment". Electronic Thesis or Diss., université Paris-Saclay, 2024. http://www.theses.fr/2024UPASF074.
Testo completoSustainable development is key to addressing energy and environmental challenges. Photocatalysis presents a viable alternative for converting and storing solar energy into fuels such as hydrogen (H₂), while also contributing to the reduction of carbon dioxide (CO₂) emissions and the degradation of pollutants in air and water. The design of efficient, cost-effective, and stable photocatalysts is essential for advancing solar energy conversion technologies. Titanium dioxide (TiO₂) is the most commonly used photocatalyst, known for its low toxicity, low cost, good photocatalytic activity, and chemical and biological stability. However, its use is limited by the rapid and high rate recombination of the electron-hole pair (exciton) and the fact that it can only be excited under UV irradiation due to its large band gap (3.0-3.2 eV). This doctoral thesis focuses on the development of surface-modified photocatalysts with metallic nanoparticles (NPs), which exhibit a synergy between their optical and electronic properties, enhancing the photocatalytic process. Phenomena such as localized surface plas- mon resonance (LSPR) in certain transition metals (Au, Pd, Ag) and the formation of the Schottky barrier allow for greater absorption of radiation in the visible spectrum and reduce exciton recombination, thereby increasing photocatalytic activity. In this project, the surface of TiO₂ has been modified with plasmonic mono- and bimetallic NPs, as well as metal oxide NPs (Au, Pd, AuPd, NiFe, NiO), synthesized through chemical and radiolysis methods. These NPs are applied for green hydrogen generation via photocatalysis. We also demonstrated that NPs shape is crucial when using anisotropic gold nanostar-shaped NPs (AuNSs) in contaminated water treatment, effectively reducing the toxic compound 4-nitrothiophenol (4-NTP) to 4-aminothiophenol (4-ATP) under visible light irradiation. This doctoral research contributes to the understanding of photocatalytic and plasmonic properties, highlighting the potential of nanostructured materials to improve catalytic performance and stability for sustainable energy and environmental applications
Bitsi, Gustave Adolphe. "Catalyse et cocatalyse de quelques reactions organiques par les composes de ruthenium". Université Louis Pasteur (Strasbourg) (1971-2008), 1988. http://www.theses.fr/1988STR13037.
Testo completoBatt-Coutrot, Delphine. "Recherche de nouveaux catalyseurs isospécifiques destinés à la polymérisation du propylène : catalyse Ziegler-Natta et métallocène". Nancy 1, 2000. http://www.theses.fr/2000NAN10070.
Testo completo