Growth and Stabilization of Ag and Ni Nanoclusters within a Polymer Matrix Via Aerosol Spray Pyrolysis

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dc.contributor.advisorZachariah, Michael Ren_US
dc.contributor.authorRomano, Michelangeloen_US
dc.contributor.departmentMaterial Science and Engineeringen_US
dc.contributor.publisherDigital Repository at the University of Marylanden_US
dc.contributor.publisherUniversity of Maryland (College Park, Md.)en_US
dc.date.accessioned2017-06-22T06:39:54Z
dc.date.available2017-06-22T06:39:54Z
dc.date.issued2017en_US
dc.description.abstractMetal nanoclusters exhibiting enhanced properties are inherently unstable​ ​because of their high specific surface area. This work investigates how the​ ​undesirable agglomeration of these nanostructures can be circumvented by​ ​incorporating them into a polymer matrix. Using aerosol spray pyrolysis (ASP), Ag​ ​and Ni nanoclusters less than 20 nm in diameter have been synthesized by growing​ ​and trapping them within polyvinylpyrrolidone (PVP), polyethylene glycol (PEG),​ ​and polyethylene oxide (PEO). Experimental process variables including the polymer​ ​system’s molecular weight, the temperature of the tube furnace reactor, the carrier gas​ ​flow rate, and the metal salt concentration within the ASP precursor solution have​ ​been studied to understand which parameters govern nanocluster formation and​ ​growth. Having analyzed the correlations that exist between these parameters and the​ ​size distribution of the Ag and Ni nanoclusters, a qualitative model is proposed that​ ​identifies which primary mechanisms underlie the formation of metal nanoclusters​ ​within a polymer matrix.en_US
dc.identifierhttps://doi.org/10.13016/M2RG4T
dc.identifier.urihttp://hdl.handle.net/1903/19548
dc.language.isoenen_US
dc.subject.pqcontrolledMaterials Scienceen_US
dc.subject.pquncontrolledAerosol Spray Pyrolysisen_US
dc.subject.pquncontrolledAgen_US
dc.subject.pquncontrolledNanoclustersen_US
dc.subject.pquncontrolledNien_US
dc.subject.pquncontrolledPolymer Nanocompositesen_US
dc.titleGrowth and Stabilization of Ag and Ni Nanoclusters within a Polymer Matrix Via Aerosol Spray Pyrolysisen_US
dc.typeThesisen_US

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