期刊
JOURNAL OF HAZARDOUS MATERIALS
卷 296, 期 -, 页码 17-22出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jhazmat.2015.04.031
关键词
Electrospun La(1-x)Ce(x)CoQ(delta); Total benzene oxidation; High surface area; Co state; Redox property
资金
- National Natural Science Foundation of China [21407025]
- Program for the Fujian Provincial Science and Technology
- Provincial Financial Department [2013H6007]
- Educational Commission of Fujian Province [JA14090]
- Scientific Research Foundation for the Returned Overseas Chinese Scholars, State Education Ministry [2011-1568]
An electrospinning with calcination process was employed for the synthesis of La1-xCexCoO delta (x=0, 0.2, 0.4, 0.6, 0.8, and 1.0) oxides. These catalysts were investigated in terms of total benzene oxidation, and characterized by means of XRD, BET, H-2-TPR, SEM, XPS, and TEM techniques. The results show that the amount of Ce doping obviously affects the physicochemical and catalytic properties of La1-xCexCoO delta, and when x = 1.0, CeCoO delta exhibits the best activity and highly thermal durability for catalytic oxidation of benzene. Additionally, it is demonstrated that the increased activity over perovskite phase dominated oxides is ascribed to a larger surface area while the activity enhancement over metal oxides mainly results from a higher valance of Co and better redox property. (C) 2015 Elsevier B.V. All rights reserved.
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