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Synthesis and characterization of carbon coated nanoparticles produced by a continuous low-pressure plasma process

DSpace at IIT Bombay

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Title Synthesis and characterization of carbon coated nanoparticles produced by a continuous low-pressure plasma process
 
Creator PANCHAL, V
NEERGAT, M
BHANDARKAR, U
 
Subject RAY PHOTOELECTRON-SPECTROSCOPY
AUGER-ELECTRON-SPECTROSCOPY
MAGNETIC-PROPERTIES
IRON NANOPARTICLES
NI NANOPARTICLES
NANOPOWDERS
XPS
FE
CO
PASSIVATION
Nanoparticles
Core-shell structure
Chemical vapor deposition
Magnetic properties
 
Description Core-shell nanoparticles coated with carbon have been synthesized in a single chamber using a continuous and entirely low-pressure plasma-based process. Nanoparticles are formed in an argon plasma using iron pentacarbonyl Fe(CO)(5) as a precursor. These particles are trapped in a pure argon plasma by shutting off the precursor and then coated with carbon by passing acetylene along with argon as the main background gas. Characterization of the particles was carried out using TEM for morphology, XPS for elemental composition and PPMS for magnetic properties. Iron nanoparticles obtained were a mixture of FeO and Fe(3)O(4). TEM analysis shows an average size of 7-14 nm for uncoated particles and 15-24 nm for coated particles. The effect of the carbon coating on magnetic properties of the nanoparticles is studied in detail.
 
Publisher SPRINGER
 
Date 2012-06-26T05:53:32Z
2012-06-26T05:53:32Z
2011
 
Type Article
 
Identifier JOURNAL OF NANOPARTICLE RESEARCH,13(9)3825-3833
1388-0764
http://dx.doi.org/10.1007/s11051-011-0305-3
http://dspace.library.iitb.ac.in/jspui/handle/100/13978
 
Language English