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This work reports the synthesis of nitrogen-doped carbon nanotubes (N-CNTs) using a Chemical Vapor Deposition (CVD) process at temperature ranging from 600°C to 850°C and ethane/ammonia concentration (defined as a volume percentage of C 2 H 6 /(C 2 H 6 +NH 3 )) of 20–100%. Several characterizations, i.e. XPS, SEM and TEM were done on the as-synthesized nitrogen-doped...
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