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Chemosphere

Title:		Enhanced catalytic performance for volatile organic compound oxidation over in-situ growth of MnOx on Co(3)O(4) nanowire
Author(s):		Zhao Q; Liu Q; Zheng Y; Han R; Song C; Ji N; Ma D;
Address:		"Tianjin Key Lab of Indoor Air Environmental Quality Control, School of Environmental Science and Technology, Tianjin University, Tianjin, 300350, China; State Key Laboratory of Engines, Tianjin University, Tianjin, 300350, China. Tianjin Key Lab of Indoor Air Environmental Quality Control, School of Environmental Science and Technology, Tianjin University, Tianjin, 300350, China; State Key Laboratory of Engines, Tianjin University, Tianjin, 300350, China. Electronic address: liuql@tju.edu.cn. Tianjin Key Lab of Indoor Air Environmental Quality Control, School of Environmental Science and Technology, Tianjin University, Tianjin, 300350, China"
Journal Title:		Chemosphere
Year:		2020
Volume:		20191206
Issue:
Page Number:		125532 -
DOI:		10.1016/j.chemosphere.2019.125532
ISSN/ISBN:		1879-1298 (Electronic) 0045-6535 (Linking)
Abstract:		"Hierarchical Co(3)O(4)@MnOx material has been synthesized by in-suit growth of MnOx on the Co(3)O(4) and applied in catalytic oxidation of volatile organic compounds (VOCs). Results revealed that T(90) of acetone on the Co(3)O(4)@MnOx was 195 degrees C, which was 36 degrees C and 32 degrees C lower than that on the Co(3)O(4) and MnOx/Co(3)O(4), respectively. The universality experiments demonstrated that T(90) of ethyl acetate and toluene on the Co(3)O(4)@MnOx were 200 degrees C and 222 degrees C, respectively. The above results indicated that Co(3)O(4)@MnOx catalyst presented a robust catalytic performance. Characterization results showed that high catalytic activity of the Co(3)O(4)@MnOx catalyst could be attributed to the improvement of low temperature reducibility, the enhancement of Co(3+) and adsorbed oxygen species resulted from the sufficient reaction between MnO(4)(-) and Co(2+) during secondary hydrothermal process. Furthermore, stability and water-resistance experiments showed the Co(3)O(4)@MnOx catalyst with high cycle and long-term stability, satisfied endurability to 5.5-10 vol. % water vapor at 210 degrees C"
Keywords:		"Adsorption Catalysis *Models, Chemical Nanowires/*chemistry Oxidation-Reduction Oxides Oxygen Toluene Volatile Organic Compounds/*chemistry Co(3+) species Cobalt and manganese oxides Hydrothermal process VOC oxidation;"
Notes:		"MedlineZhao, Qian Liu, Qingling Zheng, Yanfei Han, Rui Song, Chunfeng Ji, Na Ma, Degang eng England 2020/02/14 Chemosphere. 2020 Apr; 244:125532. doi: 10.1016/j.chemosphere.2019.125532. Epub 2019 Dec 6"