A way to avoid polymeric side products during the liquid-phase ethylene oligomerization with SBA-15 supported (bpy)Ni(II)Cl2 heterogeneous catalyst

Dae Yong Shin, Jong Ho Yoon, Hionsuck Baik, Suk Joong Lee

Research output: Contribution to journalArticle

Abstract

A new series of (bpy)Ni(II) grafted Ni-SBA-15 catalysts was prepared from treating well-defined mesoporous silica SBA-15 (4 nm in diameter) with various concentrations of bpy based ligand (L1) followed by metalation with NiCl2 for ethylene oligomerization. These new heterogeneous catalysts displayed outstanding catalytic activity depending on the loading density of Ni on SBA-15. In other words, 4 (0.21 wt% of Ni) showed much better intrinsic activity towards butene (IA = 3605 ± 28 molProduct/molNih) than that of 1 (2.25 wt% of Ni; IA = 911 ± 28 molProduct/molNih), suggesting that the formation of higher molecular weight side products was successfully inhibited by reducing the local concentration of catalyst on mesoporous silica SBA-15.

Original languageEnglish
Article number117363
JournalApplied Catalysis A: General
Volume590
DOIs
Publication statusPublished - 2020 Jan 25

Keywords

  • Catalyst
  • Ethylene oligomerization
  • Heterogeneous
  • Intrinsic activity
  • SBA-15

ASJC Scopus subject areas

  • Catalysis
  • Process Chemistry and Technology

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