Gallium Oxide Nanorods: Novel, Template-Free Synthesis and High Catalytic Activity in Epoxidation Reactions

Warunee Lueangchaichaweng, Neil R. Brooks, Sonia Fiorilli, Elena Gobechiya, Kaifeng Lin, Li Li, Sonia Parres-Esclapez, Elsa Javon, Sara Bals, Gustaaf Van Tendeloo, Johan A. Martens, Christine E. A. Kirschhock, Pierre A. Jacobs, Paolo P. Pescarmona*

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

60 Citations (Scopus)

Abstract

Gallium oxide nanorods with unprecedented small dimensions (20-80nm length and 3-5nm width) were prepared using a novel, template-free synthesis method. This nanomaterial is an excellent heterogeneous catalyst for the sustainable epoxidation of alkenes with H2O2, rivaling the industrial benchmark microporous titanosilicate TS-1 with linear alkenes and being much superior with bulkier substrates. A thorough characterization study elucidated the correlation between the physicochemical properties of the gallium oxide nanorods and their catalytic performance, and underlined the importance of the nanorod morphology for generating a material with high specific surface area and a high number of accessible acid sites.

Original languageEnglish
Pages (from-to)1585-1589
Number of pages5
JournalAngewandte Chemie - International Edition
Volume53
Issue number6
DOIs
Publication statusPublished - 3-Feb-2014
Externally publishedYes

Keywords

  • epoxidation
  • gallium oxide
  • heterogeneous catalysis
  • hydrogen peroxide
  • nanorods
  • HYDROGEN-PEROXIDE
  • GAMMA-ALUMINA
  • OXIDATION
  • H2O2
  • BOEHMITE
  • ALKENES
  • GA2O3

Cite this