Photochemical Synthesis of Mono and Bimetallic Nanoparticles and Their Use in Catalysis

Photochemical Synthesis of Mono and Bimetallic Nanoparticles and Their Use in Catalysis

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dc.contributor.author Pardoe, Andrea
dc.date.accessioned 2011-05-04T18:45:07Z
dc.date.available 2011-05-04T18:45:07Z
dc.date.created 2011 en_US
dc.date.issued 2011-05-04
dc.identifier.uri http://hdl.handle.net/10393/19951
dc.description.abstract Nanomaterials have become a popular topic of research over the years because of their many important applications. It can be a challenge to stabilize the particles at a nanometer size, while having control over their surface features. Copper nanoparticles were synthesized photochemically using a photogenerated radical allowing spatial and temporal control over their formation. The synthesis was affected by the stabilizers used, which changed the size, dispersity, rate of formation, and oxidation rate. Copper nanoparticles suffer from their fast oxidation in air, so copper-silver bimetallic nanoparticles were synthesized in attempts to overcome the oxidation of copper nanoparticles. Bimetallic nanoparticles were synthesized, but preventing the oxidation of the copper nanoparticles proved difficult. One important application of nanoparticles that was explored here is in catalyzing organic reactions. Because of the fast oxidation of copper nanoparticles, silver nanoparticles were synthesized photochemically on different supports including TiO2 and hydrotalcite (HTC). Their catalytic efficiency was tested using alcohol oxidations. Different silver nanoparticle shapes (decahedra and plates) were compared with the spheres to see the different catalytic efficiencies. en_US
dc.language.iso en en_US
dc.subject nanoparticles en_US
dc.subject catalysis en_US
dc.subject photochemistry en_US
dc.subject copper en_US
dc.subject silver en_US
dc.title Photochemical Synthesis of Mono and Bimetallic Nanoparticles and Their Use in Catalysis en_US
dc.type Thèse / Thesis en_US
dc.faculty.department Chimie / Chemistry en_US
dc.contributor.supervisor Scaiano, Juan
dc.embargo.terms immediate en_US
dc.degree.name msc en_US
dc.degree.level masters en_US
dc.degree.discipline Sciences / Science en_US

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