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Nanoparticles have an outstanding role in the field of energy production and storage due to their unique properties. It is necessary to encapsu-late these particles for a variety of purposes: to prevent agglomeration, environmental oxidation and to confine particles so as to minimize volume expansion. For such purposes, carbon is an ideal material for protection. It is known that materials such as Fe, Co, Ni can easily be encapsulated by carbonaceous materials. Recently, an attempt has been made to encapsulate Mg with limited success. In order to determine underlying mechanism in the process of encapsulation, a systematic study was carried out using Ti and Mg metal. In this study, encapsulation was carried out with a spark discharge generator were the metal was made one at the electrode against graphite. The collected nanoparticles were characterized by transmission electron microscopy (TEM) and the quality of encapsulation was determined with lattice imaging. Utiliza-tion of spark discharge generator enables a simple and easily operated process which provides the direct production and observation of carbon encapsulated metal nanoparticles.


Carbon Encapsulation, Metal Nanoparticles, Spark Discharge Generator

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