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Gallium Oxide Nanorods: Novel, Template‐Free Synthesis and High Catalytic Activity in Epoxidation Reactions
Author(s) -
Lueangchaichaweng Warunee,
Brooks Neil R.,
Fiorilli Sonia,
Gobechiya Elena,
Lin Kaifeng,
Li Li,
ParresEsclapez Sonia,
Javon Elsa,
Bals Sara,
Van Tendeloo Gustaaf,
Martens Johan A.,
Kirschhock Christine E. A.,
Jacobs Pierre A.,
Pescarmona Paolo P.
Publication year - 2014
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201308384
Subject(s) - nanorod , catalysis , gallium , microporous material , nanomaterials , gallium oxide , oxide , materials science , nanotechnology , heterogeneous catalysis , chemical engineering , chemistry , organic chemistry , engineering
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 H 2 O 2 , 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.