Catalytic upgrading of long-chain 1-alkene in synthetic fuels over shape-controlled cobalt oxide nanocrystals

Ji Eun Lee, Dong Hyun Chun, Geun Bae Rhim, Deviana Deviana, Heon Do Jeong, Ji Chan Park, Kee Young Koo, Soon Kwan Jeong, Chang Seop Hong, Min Hye Youn

Research output: Contribution to journalArticle

Abstract

To upgrade odd numbered α-olefins derived from FTS residues, the heterogeneous hydroformylation of 1-heptene as a model compound for odd numbered α-olefin was investigated. Single crystalline Co3O4 nano catalysts with different morphologies (cube and octahedron) were synthesized using a hydrothermal method and were applied to the reductive hydroformylation of 1-heptene. HRTEM and SEM analysis indicated that the cubic and octahedral Co3O4 predominantly exposed well-defined crystal planes of {100} and {111}, respectively. The Co3O4 octahedron catalyst with highly exposed {111} facets had higher activity for hydroformylation than the Co3O4 cube catalyst. The Co3O4 octahedron catalyst with a {111} surface was easily reduced to CoO at lower temperature. These reduced cobalt species can be converted into cobalt carbonyl and improved reactivity with carbon monoxide, hydrogen and olefin, leading to better catalytic performance for hydroformylation than Co3O4. On the other hand, the Co3O4 cube catalyst with the {100} surface only exhibited the isomerization of 1-heptene.

Original languageEnglish
Article number117397
JournalFuel
Volume269
DOIs
Publication statusPublished - 2020 Jun 1

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Keywords

  • Catalytic upgrading
  • Cobalt nano crystal
  • Hydroformylation
  • Linear alpha olefin
  • Synthetic fuel

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Fuel Technology
  • Energy Engineering and Power Technology
  • Organic Chemistry

Cite this

Lee, J. E., Chun, D. H., Rhim, G. B., Deviana, D., Jeong, H. D., Park, J. C., Koo, K. Y., Jeong, S. K., Hong, C. S., & Youn, M. H. (2020). Catalytic upgrading of long-chain 1-alkene in synthetic fuels over shape-controlled cobalt oxide nanocrystals. Fuel, 269, [117397]. https://doi.org/10.1016/j.fuel.2020.117397