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Chemosphere

Title:		Morphology-activity correlation of electrospun CeO(2) for toluene catalytic combustion
Author(s):		Yan D; Mo S; Sun Y; Ren Q; Feng Z; Chen P; Wu J; Fu M; Ye D;
Address:		"School of Environment and Energy, South China University of Technology, Guangzhou, 510006, China. School of Environment and Energy, South China University of Technology, Guangzhou, 510006, China; National Engineering Laboratory for VOCs Pollution Control Technology and Equipment, Guangzhou, 510006, China; Guangdong Provincial Key Laboratory of Atmospheric Environment and Pollution Control (SCUT), Guangzhou, 510006, China. School of Environment and Energy, South China University of Technology, Guangzhou, 510006, China; National Engineering Laboratory for VOCs Pollution Control Technology and Equipment, Guangzhou, 510006, China; Guangdong Provincial Key Laboratory of Atmospheric Environment and Pollution Control (SCUT), Guangzhou, 510006, China. Electronic address: cedqye@scut.edu.cn"
Journal Title:		Chemosphere
Year:		2020
Volume:		20200108
Issue:
Page Number:		125860 -
DOI:		10.1016/j.chemosphere.2020.125860
ISSN/ISBN:		1879-1298 (Electronic) 0045-6535 (Linking)
Abstract:		"Herein, CeO(2) catalysts with nanotube, nanobelt, and wire-in-nanotube morphologies were successfully fabricated by a facile single spinneret electrospinning technique. And catalytic activity of these electrospun CeO(2) nanomaterials were evaluated by toluene catalytic combustion reaction. Among the three morphologies of CeO(2) catalysts, CeO(2) nanobelt (CeO(2)-NB) presented the best toluene catalytic combustion performance (T(90%) = 230 degrees C) at WHSV = 60,000 mL g(-1) h(-1), also exhibited the lowest activation energy (E(a) = 80.2 kJ/mol). Based on the characterization by TEM, XRD, BET, SEM, XPS, Raman spectroscopy, H(2)-TPR, and O(2)-TPD results, the high catalytic activity of CeO(2)-NB catalyst was attributed to its porous nanobelt morphology with larger specific surface area and the abundance of surface oxygen vacancies. Furthermore, the CeO(2)-NB catalysts presented an excellent durability by longtime on-stream test (as well as presence of 5% vol. water vapor), suggesting its great potential for practical air pollution control application"
Keywords:		Air Pollution/prevention & control Catalysis Cerium/*chemistry Nanostructures/*chemistry Nanotubes/chemistry Oxygen/chemistry Porosity Toluene/*chemistry Volatile Organic Compounds CeO(2) nanobelts Electrospinning Porous structure Toluene catalytic combus;
Notes:		"MedlineYan, Dengfeng Mo, Shengpeng Sun, Yuhai Ren, Quanming Feng, Zhentao Chen, Peirong Wu, Junliang Fu, Mingli Ye, Daiqi eng England 2020/02/20 Chemosphere. 2020 May; 247:125860. doi: 10.1016/j.chemosphere.2020.125860. Epub 2020 Jan 8"