Nanocarbon definition

Finally, the reproducibility of the nanocarbons and their hybrids is of paramount importance when implementing them into commercial devices. This will require the definition of key characteristics and the development of standard synthesis methodology that will also enable better comparison of results between research groups. 

Statistic sorption capacity of nanocarbon as related to silver ions was determined by the Ag+concentration changes in the solution before and after keeping with the nanocarbon bunching attachment of a definite mass at stirring during 30-120 min at 20°C. The Ag+concentration control in the solution was carried out by the Folgard method [4]. 

MIL-53 materials provide a convenient model for comparison with traditional sorbents with similar geometric characteristics, such as activated charcoals and zeoUtes. The specific surface area estimated for MIL-53,1100 mVg (BET method), is similar to the average value for nanocarbon materials and exceeds that for zeolites. The framework of MIL-53 comprises unidimensional channels of 8.5 A in diameter, which is similar to the pore diameter in zeolites (6-12 A) and smaller than that in the IRMOF series, including MOF-5 (12-15 A). At the same time, the hydrogen adsorption capacity of MIL-53 is somewhat higher than that of the zeolite CaX (2.19wt.%, Table 2) and activated charcoals (2.15 wt.%) [179]. It is possible that this parameter is affected by the channel geometry, because zeolites more often have a 3D channel system, as opposed to the unbranched unidimensional channels in MIL-53. However, additional experiments on the adsorption mechanism are required to draw more definitive conclusions. 

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