Large-pore mesoporous RuNi-doped TiO2-Al2O3 nanocomposites for highly   efficient selective CO methanation in hydrogen-rich reformate gases

doi:10.1016/j.apcatb.2014.10.069

CORC > 北京大学 > 化学与分子工程学院

	Large-pore mesoporous RuNi-doped TiO2-Al2O3 nanocomposites for highly efficient selective CO methanation in hydrogen-rich reformate gases
	Dai, Xiaoping ; Liang, Ji ; Ma, Ding ; Zhang, Xin ; Zhao, Huabo ; Zhao, Bo ; Guo, Zhenguo ; Kleitz, Freddy ; Qiao, Shizhang
刊名	applied catalysis b environmental
	2015
关键词	Selective CO methanation Mesoporous nanocomposites One-pot synthesis Ru doping Nickel catalysts PREFERENTIAL OXIDATION CARBON-MONOXIDE CAPILLARY CONDENSATION CATALYTIC PERFORMANCE RU-NI/TIO2 CATALYSTS TIO2-MODIFIED AL2O3 H-2-RICH STREAM METAL-OXIDES NICKEL NI
DOI	10.1016/j.apcatb.2014.10.069
英文摘要	A series of large-pore mesoporous RuNi-doped TiO2-Al2O3 nanocomposites were prepared by a facile sal-gel method using a one-pot protocol based on evaporation-induced self-assembly. Owing to high density of active sites, an open nanoarchitecture and highly promotional efficiency by synergetic effects, the as-prepared nanocomposites demonstrated excellent catalytic properties in selective CO methanation (CO-SMET). The final concentration of CO can be reduced to less than 50 ppm with more than 50% selectivity over the MRNAT-30Ni catalyst. The working temperature window covered the typical working range of 200-250 degrees C in conventional upstream low-temperature shift reactors. The MRNAT-30Ni catalyst has excellent stability during 200 h time on stream with no detectable change in CO and CH4 concentrations, and CO in outlet reaches level below 20 ppm under realistic reaction conditions. This remarkable improvement of activity/selectivity and stability could lead to wide implementation of this one-pot protocol for the synthesis of large-pore mesoporous nanocomposite catalysts for the CO-SMET process. (C) 2014 Elsevier B.V. All rights reserved.; Chemistry, Physical; Engineering, Environmental; Engineering, Chemical; SCI(E); EI; 0; ARTICLE; daixp@cup.edu.cn; s.qiao@adelaide.edu.au; 752-762; 165
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/206047]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Dai, Xiaoping,Liang, Ji,Ma, Ding,et al. Large-pore mesoporous RuNi-doped TiO2-Al2O3 nanocomposites for highly efficient selective CO methanation in hydrogen-rich reformate gases[J]. applied catalysis b environmental,2015.
APA	Dai, Xiaoping.,Liang, Ji.,Ma, Ding.,Zhang, Xin.,Zhao, Huabo.,...&Qiao, Shizhang.(2015).Large-pore mesoporous RuNi-doped TiO2-Al2O3 nanocomposites for highly efficient selective CO methanation in hydrogen-rich reformate gases.applied catalysis b environmental.
MLA	Dai, Xiaoping,et al."Large-pore mesoporous RuNi-doped TiO2-Al2O3 nanocomposites for highly efficient selective CO methanation in hydrogen-rich reformate gases".applied catalysis b environmental (2015).