Effect of pore structure of mesoporous carbon on its supported Ru catalysts for ammonia synthesis
作者： Yaping ZHOU , Guojun LAN , Bin ZHOU , Wei JIANG , Wenfeng HAN
DOI: 10.1016/S1872-2067(12)60596-8
关键词: Mesoporous organosilica 、 Chemical engineering 、 Catalysis 、 Space velocity 、 Carbide-derived carbon 、 Ammonia production 、 Materials science 、 Inorganic chemistry 、 Reaction rate 、 Mesoporous material 、 Scanning electron microscope
摘要: Mesoporous carbon (MC) was prepared by a hard-template method and used as support for the preparation of Ru-based ammonia synthesis catalyst, Ba-Ru-K/MC. N2 adsorption-desorption, scanning electron microscopy, transmission microscopy were to characterize mesoporous its supported Ru catalysts. The effects pore structure Ba-Ru-K/MC catalyst on performance studied. results show that surface area material varies with SiO2/C mass ratio reaches largest at 1.0 SiO2/C. catalytic activity increases increased carbon. reaction rate is 139 mmol/(gcat·h) 425 °C, 10 MPa, gas hourly space velocity 10000 h−1.
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