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Thermal Conductivity of Nickel Oxide Nanoparticles Synthesized by Combustion Method

Published online by Cambridge University Press:  01 February 2011

Pranati Sahoo ,
Dinesh Misra ,
Girija Shankar Chaubey ,
James Salvador ,
Nathan J. Takas  and
Pierre F. P. Poudeu
Pranati Sahoo
Affiliation:
psahoo@uno.edusahoo.pranati@gmail.com, University of New Orleans, Advanced Materials Research Institute, 2000 Lakeshore Dr., New Orleans, Louisiana, 70148, United States, 1(504)280-5629, 1(504)280-3185
Dinesh Misra
Affiliation:
dmisra@uno.edudakkmisra@gmail.com, University of New Orleans, Advanced Materials Research Institute, 2000 Lakeshore Dr., New Orleans, Louisiana, 70148, United States, 1(504)280-5629, 1(504)280-3185
Girija Shankar Chaubey
Affiliation:
gchaubey@uno.edu, University of New Orleans, Advanced Materials Research Institute, 2000 Lakeshore Dr, Science Building 2048, New Orleans, Louisiana, 70148, United States, 504-280-5569
James Salvador
Affiliation:
james.salvador@gm.com, Genaral Motor, Research & Development Center, Warren, Michigan, United States
Nathan J. Takas
Affiliation:
ntakas@uno.edu, University of New Orleans, Advanced Materials Research Institute, New Orleans, Louisiana, United States
Pierre F. P. Poudeu
Affiliation:
ppoudeup@uno.edu, University of New Orleans, Advanced Materials Research Institute, 2000 Lakeshore Dr., New Orleans, Louisiana, 70148, United States, 1(504)280-5629, 1(504)280-3185
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Abstract

Monodispersed nickel oxide nanoparticles have been synthesized using solution combustion synthesis method. Size of the nanoparticles was controlled by varying different reaction parameters such as reaction temperature and reaction time. Structure and morphology of the nanoparticles were investigated using X-ray diffraction and transmission electron microscopy. BET surface area of 99.7 m2/g was obtained for the nanoparticles synthesized at 300 °C. A decrease in surface area was observed with increase in reaction temperature. The nanoparticles were compacted using spark plasma sintering technique at 950 °C and thermal conductivity was studied on compacted sample. Significant decrease in thermal conductivity was observed for nanoparticles in compared to their bulk counter-part.

Keywords

combustion synthesis (SHS)thermal conductivitynanostructure
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1256: Symposium N – Functional Oxide Nanostructures and Heterostructures , 2010 , 1256-N06-21
Copyright
Copyright © Materials Research Society 2010

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