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Table 1 BET surface areas obtained by adsorption of N2 at -196°C and amounts of CO2 and CO obtained by integration of areas under TPD spectra

From: Effect of the carbon nanotube surface characteristics on the conductivity and dielectric constant of carbon nanotube/poly(vinylidene fluoride) composites

Sample CNTs CNTox CNTox400 CNTox900
BET surface area (m2/g) 254 400 432 449
pHPZC 7.3 4.2 6.9 7.4
CO2 (μmol/g) 70 778 230 24
CO (μmol/g) 193 1638 1512 204
CO/CO2 2.76 2.11 6.57 8.50