Self-sustained CO Combustion Induced by CuCe0.75Zr0.25Oy Catalysts with Different Pore-forming Methods

doi:10.1080/00102202.2020.1727455

CORC > 力学研究所 > 中国科学院力学研究所 > 高温气体动力学国家重点实验室

	Self-sustained CO Combustion Induced by CuCe0.75Zr0.25Oy Catalysts with Different Pore-forming Methods
	He JY 1,2; Kang RN(康润宁)1,3; Zhang Q 4; Wei XL(魏小林)1,3; Dou BJ 4; Bin F(宾峰)1
刊名	COMBUSTION SCIENCE AND TECHNOLOGY
	2020-02-16
页码	13
关键词	CuCe0 75Zr0 25O(y) catalyst carbon monoxide self-sustained combustion pore-forming way
ISSN号	0010-2202
DOI	10.1080/00102202.2020.1727455
通讯作者	Wei, Xiaolin(xlwei@imech.ac.cn) ; Dou, Baojuan(binfeng@imech.ac.cn)
英文摘要	CO self-sustaining combustion, induced by a CuCe0.75Zr0.25Oy catalyst, has been confirmed experimentally as an effective strategy to reduce serious environmental pollution and energy waste, which is caused by direct combustion of conventional converter gas in the steelmaking industry. In this paper, the effects of CuCe0.75Zr0.25Oy catalysts prepared by a sol-gel method via three different pore-forming agents (oxalic acid, cellulose and thermal decomposition) were investigated for their catalytic activity of self-sustained CO combustion. Additionally, characterization methods were used to obtain the structural properties of each catalyst. The results obtained show that the CuCe0.75Zr0.25Oy catalyst, as a sol-gel pore-forming agent, prepared from cellulose exhibits the highest activity among the three catalysts. Under the condition of a reaction gas (3% CO+5% O-2/N-2), the T-10 (70 degrees C), T-50 (73 degrees C) and T-90 (78 degrees C) of the cellulose catalyst are obviously lower than those of the other catalysts, where T-10, T-50 and T-90 denote the reaction temperature corresponding to the CO conversion of 10%, 50% and 90%, respectively. The reason is that the cellulose pore-forming agent promotes the formation of a multistage porous structure, which strengthens the synergistic effect between the Cu and Ce catalysts and changes the redox property of the overall catalyst. On the one hand, the strong synergy between CuO and CeO2 adjusts the dispersion and chemical state of copper nanoparticles. On the other hand, the oxygen vacancies generated locate at the copper-cerium interface enhance the ability of oxygen storage and oxygen release of the catalyst.
分类号	二类
资助项目	National Natural Science Foundation of China[51736010] ; National Natural Science Foundation of China[51776216] ; Transformational Technologies for Clean Energy and Demonstration, Strategic Priority Research Program of the Chinese Academy of Sciences[XDA21040500]
WOS关键词	VOLATILE ORGANIC-COMPOUNDS ; REACTION-MECHANISM ; OXIDATION ; CU ; REMOVAL ; PERFORMANCE ; TOLUENE ; MN ; CHLOROBENZENE ; ENHANCEMENT
WOS研究方向	Thermodynamics ; Energy & Fuels ; Engineering
语种	英语
WOS记录号	WOS:000514554400001
资助机构	National Natural Science Foundation of China ; Transformational Technologies for Clean Energy and Demonstration, Strategic Priority Research Program of the Chinese Academy of Sciences
其他责任者	Wei, Xiaolin ; Dou, Baojuan
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/81628]
专题	力学研究所_高温气体动力学国家重点实验室
作者单位	1.Chinese Acad Sci, State Key Lab High Temp Gas Dynam, Inst Mech, Beijing 100190, Peoples R China; 2.Xi'an Jiaotong Univ, Sch Energy & Power Engn, Xian, Peoples R China; 3.Univ Chinese Acad Sci, Sch Engn Sci, Beijing, Peoples R China; 4.Tianjin Univ Sci & Technol, Coll Chem Engn & Mat Sci, Tianjin, Peoples R China
推荐引用方式 GB/T 7714	He JY,Kang RN,Zhang Q,et al. Self-sustained CO Combustion Induced by CuCe0.75Zr0.25Oy Catalysts with Different Pore-forming Methods[J]. COMBUSTION SCIENCE AND TECHNOLOGY,2020:13.
APA	He JY,康润宁,Zhang Q,魏小林,Dou BJ,&宾峰.(2020).Self-sustained CO Combustion Induced by CuCe0.75Zr0.25Oy Catalysts with Different Pore-forming Methods.COMBUSTION SCIENCE AND TECHNOLOGY,13.
MLA	He JY,et al."Self-sustained CO Combustion Induced by CuCe0.75Zr0.25Oy Catalysts with Different Pore-forming Methods".COMBUSTION SCIENCE AND TECHNOLOGY (2020):13.