Nanodiamond and Nano-Onion-Like Carbon Oxidation Kinetics

Nanodiamond and Nano-Onion-Like Carbon Oxidation Kinetics Results are given for a study of the effect of treatment temperature on oxidation kinetics of nanodiamond particles. Kinetic models are compared for oxidation by oxygen of nanodiamond powder previously heat treated at different temperatures. It is established that depending on treatment temperature (600 and 1400°C) the kinetic models of oxidation are different. For a specimen treated at 600°C the best model appeared to be two parallel reactions. Oxidation of a specimen heated at 1400°C proceeds according to a model of a single-stage n-th order oxidation reaction. Differences in kinetic models and oxidation reaction kinetic parameters are due to a change in the nature and morphology of specimens, which is connected with nanodiamond transformation into nano-onion-like carbon during heat treatment at a higher temperature. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Refractories and Industrial Ceramics Springer Journals

Nanodiamond and Nano-Onion-Like Carbon Oxidation Kinetics

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Publisher
Springer US
Copyright
Copyright © 2016 by Springer Science+Business Media New York
Subject
Material Science; Characterization and Evaluation of Materials; Materials Science, general; Ceramics, Glass, Composites, Natural Methods
ISSN
1083-4877
eISSN
1573-9139
D.O.I.
10.1007/s11148-016-9887-8
Publisher site
See Article on Publisher Site

Abstract

Results are given for a study of the effect of treatment temperature on oxidation kinetics of nanodiamond particles. Kinetic models are compared for oxidation by oxygen of nanodiamond powder previously heat treated at different temperatures. It is established that depending on treatment temperature (600 and 1400°C) the kinetic models of oxidation are different. For a specimen treated at 600°C the best model appeared to be two parallel reactions. Oxidation of a specimen heated at 1400°C proceeds according to a model of a single-stage n-th order oxidation reaction. Differences in kinetic models and oxidation reaction kinetic parameters are due to a change in the nature and morphology of specimens, which is connected with nanodiamond transformation into nano-onion-like carbon during heat treatment at a higher temperature.

Journal

Refractories and Industrial CeramicsSpringer Journals

Published: Feb 20, 2016

References

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