Catalytic activity of synthesized nanosized molybdenum disulfide for the hydrodesulfurization of dibenzothiophene: Effect of H2S partial pressure

Hamdy Farag, Abdel Nasser A. El-Hendawy, Kinya Sakanishi, Masahiro Kishida, Isao Mochida

Research output: Contribution to journalArticlepeer-review

34 Citations (Scopus)

Abstract

Nanosized MoS2 catalysts with basal planes of ∼4 nm were synthesized by thermally annealing ammonium tetrathiomolybdate. The structure and morphology of the obtained phases were determined by XRD, SEM and TEM. These nanosized MoS2 clusters have a truncated hexagonal shape. The MoS2 layers in these batches were found to be curved to some extent. Catalytic performance was evaluated by the hydrodesulfurization of dibenzothiophene. We studied the effect of a wide range of H2S partial pressures on the hydrodesulfurization activity and selectivity. Catalytic activity for the hydrodesulfurization of dibenzothiophene increased remarkably when H2S was included within the reaction zone. The role of the curved MoS2 layers on activity is discussed.

Original languageEnglish
Pages (from-to)189-197
Number of pages9
JournalApplied Catalysis B: Environmental
Volume91
Issue number1-2
DOIs
Publication statusPublished - Sep 7 2009

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Environmental Science(all)
  • Process Chemistry and Technology

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