Theoretical study and experimental investigation of hydrogen absorption by carbon nanomaterials

Abstract

Investigations of hydrogen adsorption in different carbon nanomaterials obtained from carbon-helium plasma were carried out. Five types of samples were investigated: fullerene-containing soot collected from chamber walls and from chamber outlet, fullerene mixture, thermolysis residue, and graphitized in plasma Al2 O3. It was found that the soot from chamber outlet containing more than 40% of single-wall carbon nanotubes (SWCNT) was the best hydrogen adsorbent. This sample adsorbed 0.92%wt. of hydrogen at 77K and 107 Pa. © 2007 Springer.