Synthesis and Characterization of Platinum and Iron Nanoparticles PDF Download

Author: Jintian Ren
Publisher:
ISBN:
Category : Iron
Languages : en
Pages : 142

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Author: Soubantika Palchoudhury
Publisher:
ISBN:
Category : Electronic dissertations
Languages : en
Pages : 134

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This dissertation focuses on the development of a bifunctional nanoparticle system that can potentially offer simultaneous imaging and therapy in the future. Recently, small platinum (Pt) nanoparticles (

Author: Suvardhan Kanchi
Publisher: John Wiley & Sons
ISBN: 1119418879
Category : Technology & Engineering
Languages : en
Pages : 720

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The use of biological sources such as microbes and plants can help in synthesizing nanoparticles in a reliable and eco-friendly way. The synthesis of nanoparticles by these natural sources is characterized by processes that take place near to ambient temperature and pressures and also near neutral pH. This edited volume authored by subject specialists, provides all the latest research and builds a database of bioreduction agents to various metal nanoparticles using different precursor systems. The book also highlights the different strategies such as simplicity, cost-effectiveness, environment-friendly and easily scalable, and includes parameters for controlling the size and shape of the materials developed from the various greener methods. In order to exploit the utmost potential metal nanoparticles synthesis from the different sources such as agricultural waste, flora and fauna, food waste, microbes and biopolymer systems, it is also crucial to recognize the biochemical and molecular mechanisms of production of nanoparticles and their characterization.

Author: Ashutosh Kumar Shukla
Publisher: Elsevier
ISBN: 0081025807
Category : Technology & Engineering
Languages : en
Pages : 548

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Green Synthesis, Characterization and Applications of Nanoparticles shows how eco-friendly nanoparticles are engineered and used. In particular, metal nanoparticles, metal oxide nanoparticles and other categories of nanoparticles are discussed. The book outlines a range of methodologies and explores the appropriate use of each. Characterization methods include spectroscopic, microscopic and diffraction methods, but magnetic resonance methods are also included as they can be used to understand the mechanism of nanoparticle synthesis using organisms. Applications covered include targeted drug delivery, water purification and hydrogen generation. This is an important research resource for those wishing to learn more about how eco-efficient nanoparticles can best be used. Theoretical details and mathematical derivations are kept to a necessary minimum to suit the need of interdisciplinary audiences and those who may be relatively new to the field. Explores recent trends in growth, characterization, properties and applications of nanoparticles Gives readers an understanding on how they are applied through the use of case studies and examples Assesses the advantages and disadvantages of a variety of synthesis and characterization techniques for green nanoparticles in different situations

Author: Rakesh Pratapbhai Chaudhary
Publisher:
ISBN:
Category :
Languages : en
Pages :

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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).

Author: William Homer Morris
Publisher:
ISBN:
Category : Barium metatitanate
Languages : en
Pages : 222

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Author:
Publisher:
ISBN:
Category : Chemistry
Languages : en
Pages : 188

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Author: Parbatee Samaroo Jagassar
Publisher:
ISBN: 9781267728319
Category :
Languages : en
Pages : 434

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This project focuses on the synthesis of catalytically-active, transition-metal nanoparticles, their adsorption into porous Vycor glass (PVG), the removal of the poly(vinylpyrrolidone) (PVP) surfactant employed in their synthesis and their chemistry with Ru(II) diimine complexes. Platinum and iridium nanoparticles with a narrow size distribution were prepared by the alcohol reduction method with poly(vinylpyrrolidone) (PVP) as the size limiting surfactant. PVP/Pt nanoparticles adsorb into PVG and as much as 46 +/- 4% of the PVP can be removed without further nanoparticle aggregation. XANES spectra show that removal of the PVP surfactant occurs without oxidation of the Pt nanoparticle. EXAFS of the adsorbed Pt nanoparticles after removal of the PVP yield a Pt-Pt bond length of 2.74 +/- 0.01 A which is slightly shorter than the Pt-Pt bond length measured in Pt foil, 2.78 A. We have shown that the Pt nanoparticles, both the stripped and the unstripped of PVP in porous Vycor glass, does not influence their reactivity with either the [Ru(bpy)2 dpp]2+ or the [Ru(bpy)2ppz]2+ complexes.

Author: Hongli Wang
Publisher:
ISBN:
Category : Cobalt compounds
Languages : en
Pages : 200

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Self Organization Magnetic Arrays (SOMA) made from self-assembled magnetic nanoparticles produced by solution phase chemical approaches have been considered as the most promising candidate for ultra-high density magnetic recording media with potential areal density beyond 1Tb/in2. This thesis is focused on the fabrication of CoPt and FePt-type nanoparticles by chemical synthesis for the application in magnetic recording media. The work in this thesis consists of three parts. Synthesis and characterization of CoPt and FePt nanoparticles were investigated.

Author: Daniel Adrion
Publisher:
ISBN:
Category : Nanoparticles
Languages : en
Pages : 80

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