Catalytic self-sustained combustion of toluene and reaction pathway over CuxMn1-xCe0.75Zr0.25/TiO2 catalysts

doi:10.1016/j.apcata.2018.10.034

	Catalytic self-sustained combustion of toluene and reaction pathway over CuxMn1-xCe0.75Zr0.25/TiO2 catalysts
	Zhao CC ; Hao QL ; Zhang Q; Yan NN ; Liu JR ; Dou BJ ; Bin F(宾峰)
发表期刊	APPLIED CATALYSIS A-GENERAL
	2019-01-05
卷号	569 页码:66-74
ISSN	0926-860X
摘要	The catalytic self-sustained combustion of toluene over CuxMn1-xCe0.75Zr0.25/TiO2 catalysts (x = 1, 0.5, 0) was studied in a microscale combustor. The catalytic activity is determined not only by the temperature with toluene conversion of 90% (T-co It was found that the self-sustained combustion was achieved successfully over the catalysts, with the toluene concentrations of 0.35 con.%, 0.50 con.% and 1.00 con.%. According to T-co,T- the activity decreased in the order of CuCe0.75Zr0.25/TiO2 (234 degrees C) > Cu0.5Mn0.5Ce0.75Zr0.25/TiO2 (238 degrees C) > MnCe0.75Zr0.25/TiO2 (284 degrees C). The excellent activity of CuCe0.75Zr0.25/TiO2 catalyst could be ascribed to the high content of active lattice oxygen, good low-temperature reducibility and homogeneous dispersion, combined with the results of H-2-TPR, O-2-TPD and XPS. Furthermore, the results of in-situ DRIFT and temperature-programmed oxidation (TPO) of toluene in N-2 atmosphere suggested that toluene was adsorbed on the catalyst surface by removing alpha-H from methyl and combining with active oxygen specie to form benzyl group, which was finally oxidized into CO2 and H2O with lattice oxygen.
关键词	Toluene Self-sustained combustion Ce-Zr based catalyst Lean-combustion limit Reaction pathway
DOI	10.1016/j.apcata.2018.10.034
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000451493400008
关键词[WOS]	SELECTIVE OXIDATION ; EFFICIENT CATALYST ; LATTICE OXYGEN ; CO OXIDATION ; PERFORMANCE ; DRIFTS
WOS研究方向	Chemistry, Physical ; Environmental Sciences
WOS类目	Chemistry ; Environmental Sciences & Ecology
项目资助者	National Nature Science Foundation of China [51776216] ; Research Centre of Modern Analytic Technology in Tianjin University of Science Technology
论文分区	一类
力学所作者排名	5+
RpAuthor	Dou, BJ ; Bin, F
引用统计	被引频次：34[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/78482
专题	高温气体动力学国家重点实验室
作者单位	1.{Zhao, Chenchen、Hao, Qinglan、Zhang, Qing、Yan, Ningna、Liu, Jiaren、Dou, Baojuan} Tianjin Univ Sci & Technol, Tianjin 300457, Peoples R China 2.{Bin, Feng} Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Zhao CC,Hao QL,Zhang Q,et al. Catalytic self-sustained combustion of toluene and reaction pathway over CuxMn1-xCe0.75Zr0.25/TiO2 catalysts[J]. APPLIED CATALYSIS A-GENERAL,2019,569:66-74.
APA	Zhao CC.,Hao QL.,Zhang Q.,Yan NN.,Liu JR.,...&宾峰.(2019).Catalytic self-sustained combustion of toluene and reaction pathway over CuxMn1-xCe0.75Zr0.25/TiO2 catalysts.APPLIED CATALYSIS A-GENERAL,569,66-74.
MLA	Zhao CC,et al."Catalytic self-sustained combustion of toluene and reaction pathway over CuxMn1-xCe0.75Zr0.25/TiO2 catalysts".APPLIED CATALYSIS A-GENERAL 569(2019):66-74.

条目包含的文件		下载所有文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
Jp2019060.pdf（2238KB）	期刊论文	出版稿	开放获取	CC BY-NC-SA	浏览下载