Catalytic Methanation of Carbon Dioxide by Active Oxygen Material CexZr1-xO2 Supported NiCo Bimetallic Nanocatalysts

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	Catalytic Methanation of Carbon Dioxide by Active Oxygen Material CexZr1-xO2 Supported NiCo Bimetallic Nanocatalysts
	Zhu, Hongwei; Razzaq, Rauf; Li, Chunshan; Muhmmad, Yaseen; Zhang, Suojiang
刊名	AICHE JOURNAL
	2013-07-01
卷号	59 期号:7 页码:2567-2576
关键词	CO2 methanation active oxygen material CexZr1-xO2 NiCo bimetallic nanosized catalysts
英文摘要	A series of active oxygen material CexZr1-xO2-supported NiCo bimetallic nanosized catalysts were prepared by coprecipitation method, which is simple and fit for industrial use with lower cost than other methods. The effect of CeO2/ZrO2 mole ratio, Co metal addition, and PEG-6000 addition were investigated. The catalysts were characterized through X-ray diffraction, H2 thermal-programmed reduction, N2 adsorption, Raman spectroscopy, CO pulse chemisorption, X-ray photoelectron spectroscopy, oxygen storage capacity, and transmission electron microscopy-energy dispersive X-ray analysis. Modifications of the structural and redox properties of these materials were evaluated in relation to their catalytic performances. Particularly, the relationship between the active oxygen sites of the catalysts and their catalytic performances was investigated. The interaction between active metals (Ni and Co) and CexZr1-xO2 support was found to be very important for catalytic performance. The active oxygen site of CexZr1-xO2 can considerably improve catalytic performance. Appropriate Co metal addition also remarkably enhanced the catalytic stability and activity. Moreover, PEG-6000 addition can improve the Brunauer-Emmett-Teller surface area and active metal dispersion of catalysts to improve their performances. The nanosized catalyst 15 wt % Ni-5 wt % Co/Ce0.25Zr0.75O2 prepared by adding 5 wt % PEG-6000 achieved almost 85% CO2 conversion and 98% selectivity to methane at 280 degrees C when the gas hourly space velocity was 10,000 h-1. (c) 2013 American Institute of Chemical Engineers AIChE J, 59: 2567-2576, 2013
WOS标题词	Science & Technology ; Technology
类目[WOS]	Engineering, Chemical
研究领域[WOS]	Engineering
关键词[WOS]	FISCHER-TROPSCH SYNTHESIS ; ZIRCONIA-CERIA MATERIALS ; STORAGE CAPACITY ; SOLID-SOLUTIONS ; PREFERENTIAL OXIDATION ; PARTICLE-SIZE ; CO ; COBALT ; PERFORMANCE ; CEO2-ZRO2
收录类别	SCI
语种	英语
WOS记录号	WOS:000320470600023
公开日期	2015-05-27
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/13577]
专题	过程工程研究所_研究所（批量导入）
作者单位	Chinese Acad Sci, Inst Proc Engn, Beijing Key Lab Ion Liquids Clean Proc, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Zhu, Hongwei,Razzaq, Rauf,Li, Chunshan,et al. Catalytic Methanation of Carbon Dioxide by Active Oxygen Material CexZr1-xO2 Supported NiCo Bimetallic Nanocatalysts[J]. AICHE JOURNAL,2013,59(7):2567-2576.
APA	Zhu, Hongwei,Razzaq, Rauf,Li, Chunshan,Muhmmad, Yaseen,&Zhang, Suojiang.(2013).Catalytic Methanation of Carbon Dioxide by Active Oxygen Material CexZr1-xO2 Supported NiCo Bimetallic Nanocatalysts.AICHE JOURNAL,59(7),2567-2576.
MLA	Zhu, Hongwei,et al."Catalytic Methanation of Carbon Dioxide by Active Oxygen Material CexZr1-xO2 Supported NiCo Bimetallic Nanocatalysts".AICHE JOURNAL 59.7(2013):2567-2576.