Aerobic oxidative dehydrogenation of N-heterocycles over OMS-2-based nanocomposite catalysts: preparation, characterization and kinetic study

Autor:	Tao Tang, Xiuru Bi, Peiqing Zhao, Xiang Liu, Xu Meng, Mingxia Gou
Rok vydání:	2020
Předmět:	Solvent Nanocomposite Chemical engineering Chemistry Doping chemistry.chemical_element Dehydrogenation Activation energy Oxidative phosphorylation Tungsten Catalysis
Zdroj:	Catalysis Science & Technology. 10:360-371
ISSN:	2044-4761 2044-4753
Popis:	OMS-2-based nanocomposites doped with tungsten were prepared for the first time and their remarkably enhanced catalytic activity and recyclability in aerobic oxidative dehydrogenation of N-heterocycles were examined in detail. Many tetrahydroquinoline derivatives and a broad range of other N-heterocycles could be tolerated by the catalytic system using a biomass-derived solvent as a reaction medium. Newly generated mixed crystal phases, noticeably enhanced surface areas and labile lattice oxygen of the OMS-2-based nanocomposite catalysts might contribute to their excellent catalytic performance. Moreover, a kinetic study was extensively performed which concluded that the dehydrogenation of 1,2,3,4-tetrahydroquinoline is a first-order reaction, and the apparent activation energy is 29.66 kJ mol−1.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::b339eabcb592887ca320d40e85d30ef5 https://doi.org/10.1039/c9cy01968e Zobrazit plný text záznamu