Sonochemical synthesis and catalytic properties of nanostructured molybdenum carbide

Kenneth S. Suslick, Taeghwan Hyeon, Mingming Fang, Andrzej A. Cichowlas

Research output: Contribution to journalConference articlepeer-review

Abstract

Molybdenum hexacarbonyl in hexadecane was irradiated with high intensity ultrasound under argon at 90°C to yield face centered cubic molybdenum carbide, Mo2C. After thermal treatment, oxygen and excess carbon were removed to give stoichiometric Mo2C. SEM micrographs showed that the surface was extremely porous. TEM micrographs showed that the solid was an aggregate of particles with diameters of ≈ 2 nm. This material has a very high surface area, 188 m2/g as determined by BET gas adsorption. Catalytic studies have been conducted on the dehydrogenation of cyclohexane and the hydrogenolysis of ethane. The sonochemically prepared Mo2C shows good catalytic activity for the dehydrogenation of cyclohexane with 100% selectivity for formation of benzene without hydrogenolysis to methane. The material revealed poor catalytic activity for the hydrogenolysis of ethane.

Original languageEnglish (US)
Pages (from-to)201-206
Number of pages6
JournalMaterials Research Society Symposium - Proceedings
Volume351
DOIs
StatePublished - Jan 1 1994
EventProceedings of the 1994 MRS Symposium - San Francisco, CA, USA
Duration: Apr 4 1994Apr 8 1994

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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