Table 2 Elemental composition of various carbon nanotubes.

From: Dispersibility of vapor phase oxygen and nitrogen functionalized multi-walled carbon nanotubes in various organic solvents

Tube

Elemental analysis (wt%)§

C

N

H

O

MWCNT

98.75

n.d.*

<0.1

<1

PMWCNT

98.2

n.d.

0.14

0.8

OMWCNT-48

91.9

n.d.

<0.1

5.55

OMWCNT-72

91.8

n.d.

<0.1

6

NMWCNT-48

95.3

0.89

0.13

2.58

NMWCNT-72

95.55

1

0.11

3.05

  1. §The rest elements in the tubes could be metal impurity.
  2. *n.d.: not detected element.
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