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2篇 您的检索式:作者名="Libor apek"
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1乙烷氧化脱氢用Ni/Al_2O_3催化剂中活性镍物种前驱体(英文)显示文摘Ni/Al2O3 catalysts for oxidative dehydrogenation(ODH) of ethane were prepared by impregnation of Al2O3 with nickel acetate or nickel nitrate,and by mechanical mixing of NiO and Al2O3.The Ni-based catalysts were characterized by N2 adsorption-desorption,X-ray diffraction,diffuse reflectance UV-visible diffuse reflectance spectroscopy,and temperature-programmed reduction of hydrogen.The results showed that formation of crystalline NiO particles with a size of < 8 nm and/or non-stoichiometric NiO species in the Ni/Al2O3 catalysts led to more active species in ODH of ethane under the investigated reaction conditions.In contrast,tetrahedral Ni species present in the catalysts led to higher selectivity for ethene.Formation of large crystalline NiO particles(22-32 nm) over Ni/Al2O3 catalysts decreased the selectivity for ethene.Lucie Smoláková árka Botková Libor apek Peter Priecel Agnieszka Soltysek Martin Kout Lenka Matějová 2013催化学报2013,34,10:2
2在批次和固定床反应器中用于菜子油酯化K/Al_2O_3催化剂的稳定性(英文)显示文摘Petr Kutálek Libor apek Lucie Smoláková David Kubikb Martin Hájek 2014催化学报2014,35,7:2
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