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High Temperature Functionalization and Surface Modification of Nanodiamond Powders

Published online by Cambridge University Press:  01 February 2011

Vadym N. Mochalin
Affiliation:
kbehler@drexel.edu, Drexel University, Material Science and Engineering, 3141 Chestnut Street, Philadelphia, PA, 19104, United States, 215-895-1934
Sebastian Osswald
Affiliation:
osswald.sebastian@gmx.de, Drexel University, Materials Science and Engineering, 3141 Chestnut Street, Philadelphia, PA, 19104, United States
Cristelle Portet
Affiliation:
cportet@mail.ece.drexel.edu, Drexel University, Materials Science and Engineering, 3141 Chestnut Street, Philadelphia, PA, 19104, United States
Gleb Yushin
Affiliation:
yushin@gatech.edu, Drexel University, Materials Science and Engineering, 3141 Chestnut Street, Philadelphia, PA, 19104, United States
Christopher Hobson
Affiliation:
chobson@drexel.edu, Drexel University, Materials Science and Engineering, 3141 Chestnut Street, Philadelphia, PA, 19104, United States
Mickael Havel
Affiliation:
mickaelhavel@hotmail.com, Drexel University, Materials Science and Engineering, 3141 Chestnut Street, Philadelphia, PA, 19104, United States
Yury Gogotsi
Affiliation:
yg36@drexel.edu, Drexel University, Materials Science and Engineering, 3141 Chestnut Street, Philadelphia, PA, 19104, United States
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Abstract

High temperature annealing in vacuum, air, hydrogen, chlorine, and ammonia are described as a means to change surface chemistry and phase composition of nanodiamond powders of three different grades, which have different sp2/sp3 carbon ratios. The changes in surface chemistry and phase composition of the powders are analyzed using Raman spectroscopy and Fourier Transform Infra Red (FTIR) spectroscopy. Advantages and limitation of high-temperature treatment techniques as well as potential applications of the gas-treated nanodiamond powders are discussed.

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