کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1273108 | 1497608 | 2010 | 8 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Synthesis and hydrogen storage capacity of exfoliated turbostratic carbon nanofibers Synthesis and hydrogen storage capacity of exfoliated turbostratic carbon nanofibers](/preview/png/1273108.png)
Turbostratic carbon nanofibers (CNFs) with a rough surface, open pore walls, and a defect structure were continuously produced by the thermal decomposition of alcohol in the presence of an iron catalyst and a sulfur promoter at 1100 °C under a nitrogen atmosphere in a vertical chemical vapor deposition reactor. A graphite exfoliation technique using intercalation and thermal shock was employed to expand the graphene layers of the as-produced turbostratic CNFs. The hydrogen storage capacity of the turbostratic CNF samples was measured using the volumetric method with a pressure of up to 1 MPa at 77 K. The hydrogen storage capacities of the as-produced and exfoliated turbostratic CNFs were 1.5 and 5 wt%, respectively. The defects on the surface and expandable graphitic structure are considered important keys to increasing the hydrogen uptake in turbostratic CNFs.
Journal: International Journal of Hydrogen Energy - Volume 35, Issue 9, May 2010, Pages 4123–4130