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Noncatalytic synthesis of carbon-nitride nanocolumns by dc magnetron sputtering

✍ Scribed by Shalaev, R. V. ;Ulyanov, A. N. ;Prudnikov, A. M. ;Shin, G. M. ;Yoo, S. I. ;Varyukhin, V. N.

Book ID
105365620
Publisher
John Wiley and Sons
Year
2010
Tongue
English
Weight
211 KB
Volume
207
Category
Article
ISSN
0031-8965

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✦ Synopsis

Abstract

Carbon‐nitride nanocolumns were produced without catalyst metal by dc magnetron sputtering of a graphite target in pure N~2~ gas at pressure of 26.0 Pa on a quartz glass substrate kept at ∼200 °C. The nitrogen/carbon ratio in nanocolumns equals 0.18. Scanning electron microscopy shows that films represent dense nanostructure with columns ∼70–80 nm in diameter. The main fraction of the nitrogen is sp^2^‐coordinated by carbon and enters into the graphene layers as substitutional atoms; the other fraction of the nitrogen facilitates a cross‐linking between the graphene layers through sp^3^‐coordinated carbon.

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