The Synthesis of Peculiar Structure of Springlike Multiwall Carbon Nanofibers/Nanotubes via Mechanothermal Method

Table 1

Characteristic of different samples used to investigate during milling.

Milling time (h)	Sample (Id)	S. A. (m^2/g)	Crystallite size = D (nm)
0	C0	5.5	31.1
5	C5	21.2	30.1
10	C10	25.8	29.8
30	C30	35.1	27.4
50	C50	45.6	25.4
60	C60	50.1	24.6
80	C80	62.5	22.1
90	C90	70.2	20.1
100	C100	78.9	18.5
120	C120	115.2	13.9
130	C130	145.2	11.2
140	C140	175.5	8.5
150	C150	200.5	5.2
160	C160	205.5	4.9
170	C170	207.4	4.8
180	C180	209.1	4.7
190	C190	209.5	4.8
200	C200	211.2	4.8
210	C210	211.2	4.8
220	C220	211.2	4.8