ИСТИНА

It was found that the catalytic activity of CNM (Fig.) is affected by their matrix structure and the content of oxygen surface groups. The сonversion of propanol-2 on the way of dehydration goes on ND, whereas the dehydration goes mainly on CNTs. Comparison of the catalytic activity of CNM with approximately the same oxygen content, but with different carbon structure, showed that the activity of cylindrical CNTs (9.35% O2) exceeds the activity of conical CNTs (9.4% O2) and is significantly higher than the activity of ND (7.40% O2). The specific surfaces of cylindrical and conical CNTs are of the same order and equal to 249 and 204 m2/g, respectively. This fact indicates that, unlike ND, not only the surface functional groups of CNTS participate in the catalytic process, but also the sp2-carbon structure itself in the form of defects due to its curvature.