Microwave-assisted non-oxidative ethane dehydrogenation over different carbon materials

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Eslek Koyuncu D. D.

Diamond And Related Materials, vol.110, pp.108130-108141, 2020 (Journal Indexed in SCI Expanded)

  • Publication Type: Article / Article
  • Volume: 110
  • Publication Date: 2020
  • Title of Journal : Diamond And Related Materials
  • Page Numbers: pp.108130-108141

Abstract

Microwave-assisted hydrogen production via non-oxidative ethane dehydrogenation was investigated over five

different carbon samples: graphite (Graphite), graphite extra pure (Graphite-ex), reduced graphene oxide (RGO),

carbon nanofiber (Cnano) and mesoporous carbon (mesoC). Hard-templating method was used to prepare CMK-8

type mesoC sample. Thermal reduction was applied to the graphene oxide sample prepared by Modified Hummers’

method to obtain RGO sample. The mesoC sample was found to have the highest surface area (1098 m2/g)

and pore volume (0.907 cm3/g) among the samples studied. The catalytic activities of the carbon samples were

investigated in a microwave-heated continuous-flow reactor system at 450 ◦C using a feed ratio of Ethane/Argon:

1/2 with a gas hourly space velocity (GHSV) of 18,000 mL/h.gcat. The mesoC sample exhibited higher ethane

conversion (45.9%) and H2 selectivity (0.95) and the activity results confirmed that the pore properties were

more effective on ethane dehydrogenation. The high catalytic activity was attributed to the microwave-assisted

heating system.