Table 1

Comparison of the physical characteristics of the carbon nanoparticles
Shape Nanosheet Spherical nanoparticle Spherical nanoparticle Spherical nanoparticle Multi-wall tube
Size 6 to 8 nm/15 μm 3 to 4 nm 3 to 4 nm Approximately 50 nm (aggregates) 8 nm/5 to 20 μm
Atom configuration sp2 sp2 sp3 sp2 sp2
Purity >99.5% >93% >95% >99.5% >95%
Zeta potential (mV) −3.83 28.7 −39.3 −38.0 −14.8
Specific surface area 120 to 150 m2/g 540 to 650 m2/g Approximately 282 m2/g 0.07 to 0.17 m2/ga >500 m2/g
Production Exfoliated Explosion Explosion Arc discharge Catalytic CVD

Purity and specific surface area (except C60) were provided by the manufacturer. The size was provided by the manufacturer and examined with a transmission electron microscope. Zeta potential was examined with Zetasizer Nano-ZS90. GNS, graphene nanosheet; NG, graphite nanoparticle; ND, diamond nanoparticle; C60, fullerene C60; MWNT, multi-wall nanotube; CVD, chemical vapour deposition. aTaken from Cheng et al. [16].

Wierzbicki et al.

Wierzbicki et al. Nanoscale Research Letters 2013 8:195   doi:10.1186/1556-276X-8-195

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