Highly selective oxidation of benzyl alcohol to benzaldehyde catalyzed by nano Au/γ-Al2O3 under environment-friendly conditions

Autor:	Nguyen Quang Long, Ngo Anh Quan
Rok vydání:	2014
Předmět:	Inorganic chemistry Catalysis law.invention Benzaldehyde chemistry.chemical_compound Adsorption chemistry Colloidal gold law Benzyl alcohol Calcination Physical and Theoretical Chemistry Hydrogen peroxide Selectivity
Zdroj:	Reaction Kinetics, Mechanisms and Catalysis. 114:147-155
ISSN:	1878-5204 1878-5190
DOI:	10.1007/s11144-014-0773-4
Popis:	The liquid phase oxidation of benzyl alcohol to benzaldehyde under environment-friendly conditions has been investigated. Water is used as a medium to replace toxic organic solvents. The reaction used hydrogen peroxide as the oxidant. The novel green reaction was catalyzed by nano Au/γ-Al2O3. Gold nanoparticles supported on gamma alumina (γ-Al2O3) were prepared by a deposition–precipitation method. These synthesized materials were characterized by several techniques such as X-ray diffraction, N2 low temperature adsorption, and transmission electron microscopy. The benzaldehyde selectivity changed depending on the supports, the Au loading and the reaction temperature. Over 98 % selectivity of benzaldehyde was observed at 60 °C after 2 h on the 2 % Au supported on γ-Al2O3 which was calcined at 550 °C.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::fd6bbbe7674e11d4fb72b73019db9a15 https://doi.org/10.1007/s11144-014-0773-4 Zobrazit plný text záznamu Full text from SpringerLink