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Synthesis And Characterization Of Platinum And Carbon Nanoparticle In Benzene By Electric Plasma Discharge In Ultrasonic Cavitation

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Synthesis And Characterization Of Platinum And Carbon Nanoparticle In Benzene By Electric Plasma Discharge In Ultrasonic Cavitation

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dc.contributor.author Chaudhary, Rakesh Pratapbhai en_US
dc.date.accessioned 2011-07-14T20:54:36Z
dc.date.available 2011-07-14T20:54:36Z
dc.date.issued 2011-07-14
dc.date.submitted January 2010 en_US
dc.identifier.other DISS-11043 en_US
dc.identifier.uri http://hdl.handle.net/10106/5886
dc.description.abstract Nanoparticles are of interest due to the high number of atoms located on the surface. This high surface area is conductive to higher catalytic efficiency than normal seen in bulk metals. Of numerous Nanoparticles catalysts studied, Platinum (Pt) nanoparticles have attracted particular interest due to their superior catalysis for many chemical reactions, especially for fuel cell reactions including hydrogen oxidation and oxygen reduction. Carbon supported Pt nanoparticles are active anode catalysts for fuel cells. In this thesis nano-sized Pt particles have been synthesized by an advanced and cost effective method. Pt nanoparticles embedded in carbon matrix were synthesized by an electric plasma discharge generated in the ultrasonic cavitation field of benzene. Several material characterization techniques such as Transmission electron microscopy (TEM) and X-ray diffraction (XRD) were used to study the particle size and structure of the synthesized nanoparticles. X-ray photoelectron Spectroscopy (XPS) and Energy dispersive X-ray Spectroscopy (EDX) analysis were used to study the chemical composition of the synthesized nanoparticles. Magnetic nanoparticles are of considerable interest owing to their potentials application in magnetic fluids, magnetic recording materials, biomedicine, and other applications. In particular magnetic nanoparticles offer attractive possibilities in biomedicine. The size of magnetic nanoparticles range from few nanometers up to tens of nanometers, which places them at dimensions of biological entity such as a cell, a virus, a protein and a gene. Magnetic nanoparticles can be manipulated using an external magnetic field, which provides applications such as tagging of biomolecules, efficient bioseparation, sensitive biosensing, magnetic resonance imaging and drug delivery. These applications require particles to be biocompatible, stable and biodegradable. Carbon nanoparticles are potentially biocompatible, chemically stable and nontoxic .In this work Graphite nanoparticles and iron doped carbon nanoparticles were synthesized by an electric plasma discharge generated in the ultrasonic cavitation field of benzene. Several material characterization techniques such as High Resolution Transmission Electron Microscopy (HRTEM) and XRD were used to study the particle size and structure of the synthesized nanoparticles.XPS and EDX analysis were used to study the chemical composition of the synthesized nanoparticles. Raman spectroscopy was used to characterize carbon nanoparticles. Magnetic measurement of iron doped carbon and graphite nanoparticles were measured using Vibrating sample magnetometer (VSM). en_US
dc.description.sponsorship Koymen, Ali en_US
dc.language.iso en en_US
dc.publisher Materials Science & Engineering en_US
dc.title Synthesis And Characterization Of Platinum And Carbon Nanoparticle In Benzene By Electric Plasma Discharge In Ultrasonic Cavitation en_US
dc.type M.S. en_US
dc.contributor.committeeChair Koymen, Ali en_US
dc.degree.department Materials Science & Engineering en_US
dc.degree.discipline Materials Science & Engineering en_US
dc.degree.grantor University of Texas at Arlington en_US
dc.degree.level masters en_US
dc.degree.name M.S. en_US

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