Importance of porous structure and synergistic effect on the catalytic oxidation activities over hierarchical Mn-Ni composite oxides

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	Importance of porous structure and synergistic effect on the catalytic oxidation activities over hierarchical Mn-Ni composite oxides
	Tang, Wenxiang 1,2; Deng, Yuzhou 1; Li, Wenhui 1; Li, Jiaqi 1; Liu, Gang 1; Li, Shuangde 1; Wu, Xiaofeng 1; Chen, Yunfa1
刊名	CATALYSIS SCIENCE & TECHNOLOGY
	2016
卷号	6 期号:6 页码:1710-1718
关键词	VOLATILE ORGANIC-COMPOUNDS LOW-TEMPERATURE TOLUENE COMBUSTION ETHYL-ACETATE AIR-QUALITY CO PERFORMANCE REDUCTION REMOVAL BENZENE
ISSN号	2044-4753
通讯作者	Wu, XF
英文摘要	Hierarchically porous manganese-nickel composite oxides (MNCOs) were successfully synthesized by an oxalate route and further applied for catalytic removal of benzene. Among these catalysts, the best one was Mn2Ni1 mixed oxides which exhibited uniform hierarchical lithops-like topography, a rich porous structure and a high surface area of 201.1 m(2) g(-1). The temperature required for a benzene conversion of 90% over this catalyst was ca. 232 degrees C under the conditions of a benzene concentration of 1000 ppm in air and a high space velocity of 120000 mL g(-1) h(-1), which was 54 degrees C lower than that over the non-porous MNCO particles prepared by a traditional approach. The reaction kinetic study showed that the apparent activation energy (45.2 kJ mol(-1)) for the total oxidation of benzene over the Mn2Ni1 oxide catalyst was much lower than those (72.4-97.2 kJ mol(-1)) over other catalysts. With XPS and H-2-TPR analyses, the porous MNCOs have a higher content of surface-adsorbed oxygen species and better low-temperature reducibility which can be ascribed to a possible synergetic effect between Mn and Ni ions in the spinel mixed oxides.
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Chemistry, Physical
研究领域[WOS]	Chemistry
关键词[WOS]	VOLATILE ORGANIC-COMPOUNDS ; LOW-TEMPERATURE ; TOLUENE COMBUSTION ; ETHYL-ACETATE ; AIR-QUALITY ; CO ; PERFORMANCE ; REDUCTION ; REMOVAL ; BENZENE
收录类别	SCI
语种	英语
WOS记录号	WOS:000372172800015
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/20639]
专题	过程工程研究所_研究所（批量导入）
作者单位	1.Chinese Acad Sci, Inst Proc Engn, Beijing 100190, Peoples R China 2.Univ Connecticut, Inst Mat Sci, Storrs, CT 06269 USA
推荐引用方式 GB/T 7714	Tang, Wenxiang,Deng, Yuzhou,Li, Wenhui,et al. Importance of porous structure and synergistic effect on the catalytic oxidation activities over hierarchical Mn-Ni composite oxides[J]. CATALYSIS SCIENCE & TECHNOLOGY,2016,6(6):1710-1718.
APA	Tang, Wenxiang.,Deng, Yuzhou.,Li, Wenhui.,Li, Jiaqi.,Liu, Gang.,...&Chen, Yunfa.(2016).Importance of porous structure and synergistic effect on the catalytic oxidation activities over hierarchical Mn-Ni composite oxides.CATALYSIS SCIENCE & TECHNOLOGY,6(6),1710-1718.
MLA	Tang, Wenxiang,et al."Importance of porous structure and synergistic effect on the catalytic oxidation activities over hierarchical Mn-Ni composite oxides".CATALYSIS SCIENCE & TECHNOLOGY 6.6(2016):1710-1718.