CAS OpenIR
Synergistic effect for promoted benzene oxidation over monolithic CoMnAlO catalysts derived from in situ supported LDH film
Li, Shuangde1; Mo, Shengpeng1,2; Wang, Dongdong1,2; Wu, Xiaofeng1; Chen, Yunfa1,3
2019-07-15
Conference Name8th Japan-China Workshop on Environmental Catalysis and Eco-Materials
Source PublicationCATALYSIS TODAY
Volume332
Pages132-138
Conference DateDEC 05-06, 2017
Conference PlaceTsukuba, JAPAN
Funding OrganizationNational Key R&D Program of China ; National Natural Science Foundation of China ; Open Research Fund of State Key Laboratory of Multi-phase Complex Systems
PublisherELSEVIER SCIENCE BV
AbstractMonolithic catalysts with high catalytic activity bring about increasing interest in practical environmental purification field for volatile organic compounds (VOCs) degradation with low pressure drops. Monolithic CoMnAlO catalysts with varied Co/Mn molar ratio derived from in situ supported layered double hydroxides (LDH) film are prepared through ammonia hydrothermal growing on Al substrate following calcinations. The textural properties for CoMnAlO catalysts with low temperature reducibility, surface element species are controlled by tuning the initial Co/Mn molar ratio verified through H-2-TPR and XPS spectra. CoMn2AlO film sample shows best activity with the temperature for 90% benzene decomposition (T-90) around 238 degrees C with space velocity 300,000 ml g(cat)(-1) h(-1). The reaction rate of CoMn2AlO film is about 1.32 mmol g(cat)(-1) h(-1) at 260 degrees C with T-99, which is nearly two times to that of Co3AlO film catalyst with 0.73 mmol g(cat)(-1) h(-1), because of the higher Mn4+/Mn3+ and Co3+/Co2+ atomic ratios and reducibility inducing by the synergistic effect of Co and Mn. The value is five times higher than CoMn2AlO powder catalyst with 0.26 mmol g(cat)(-1) h(-1), which is due to the great exposure active sites.
KeywordMonolithic film LDH Catalytic oxidation Reaction rate Synergistic effect
DOI10.1016/j.cattod.2018.08.014
Funding ProjectNational Key R&D Program of China[2017YFC0211503] ; National Natural Science Foundation of China[21401200] ; National Natural Science Foundation of China[51672273] ; Open Research Fund of State Key Laboratory of Multi-phase Complex Systems[MPCS-2017-D-06]
Language英语
WOS Research AreaChemistry ; Engineering
WOS SubjectChemistry, Applied ; Chemistry, Physical ; Engineering, Chemical
WOS IDWOS:000468158600020
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type会议论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/28943
Collection中国科学院过程工程研究所
Corresponding AuthorChen, Yunfa
Affiliation1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Inst Urban Environm, Ctr Excellence Urban Atmospher Environm, Xiamen 361021, Peoples R China
Recommended Citation
GB/T 7714
Li, Shuangde,Mo, Shengpeng,Wang, Dongdong,et al. Synergistic effect for promoted benzene oxidation over monolithic CoMnAlO catalysts derived from in situ supported LDH film[C]:ELSEVIER SCIENCE BV,2019:132-138.
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