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Gallium Oxide Nanorods: Novel,Template‐Free Synthesis and High Catalytic Activity in Epoxidation Reactions |
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| Authors: | Warunee Lueangchaichaweng Dr. Neil R. Brooks Dr. Sonia Fiorilli Dr. Elena Gobechiya Prof. Kaifeng Lin Li Li Dr. Sonia Parres‐Esclapez Dr. Elsa Javon Prof. Sara Bals Prof. Gustaaf Van Tendeloo Prof. Johan A. Martens Prof. Christine E. A. Kirschhock Prof. Pierre A. Jacobs Prof. Paolo P. Pescarmona |
| Affiliation: | 1. Centre for Surface Chemistry and Catalysis, University of Leuven, Kasteelpark Arenberg 23, Heverlee, 3001 (Belgium);2. Department of Chemistry, University of Leuven, Celestijnenlaan 200F, Heverlee, 3001 (Belgium);3. DISAT, Politecnico di Torino, Corso Duca degli Abruzzi 24, Torino, 10129 (Italy);4. Natural Science Research Centre, Academy of Fundamental and Interdisciplinary Science, Harbin Institute of Technology box‐3026, 150080 Harbin (China);5. EMAT, University of Antwerp, Groenenborgerlaan 171, 2020 Antwerp (Belgium) |
| Abstract: | Gallium oxide nanorods with unprecedented small dimensions (20–80 nm length and 3–5 nm 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. |
| Keywords: | epoxidation gallium oxide heterogeneous catalysis hydrogen peroxide nanorods |