Table 2.

Elemental analysis, C:O ratio, SSA of MWCNT and f-MWCNT.

Particle	Treatment Time (min)	% by Weight			C:O	SSA (m2/g)
		C	O	Ni
MWCNTsource	0	93.9	4.90	1.20	N/A	174
f-MWCNT38	5	90.1	9.06	0.84	13.3	220
f-MWCNT24	10	88.9	10.7	0.40	11.1	247
f-MWCNT21	20	88.2	11.8	-	10.0	246
f-MWCNT16	40	86.0	14.0	-	8.2	266
f-MWCNT15	60	85.2	14.8	-	7.7	263
f-MWCNT15	90	84.9	15.1	-	7.5	251
f-MWCNT14	120	84.4	15.6	-	7.2	271