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Fabrication of silica supported Mn-Ce benzene oxidation catalyst by a simple and environment-friendly oxalate approach
Li, Weiman1,2; Liu, Haidi1; Ma, Xiang1,2; Mo, Shengpeng1,2; Li, Shuangde1; Chen, Yunfa1
2018-02-01
发表期刊JOURNAL OF POROUS MATERIALS
ISSN1380-2224
卷号25期号:1页码:107-117
摘要A series of silica supported Mn-Ce composite oxides with different Mn/Ce molar ratios were obtained by a simple and environment-friendly oxalate route. The physical and chemical properties were characterized by TG, BET, SEM, TEM, XPS and TPR analysis. All catalysts showed excellent activity towards deep oxidation of benzene. The effects of Mn/Ce ratio, calcination temperature on the structure and catalytic activity of catalysts were investigated. Catalyst from nitrate precursor was also characterized to compare the influence of different precursors. The 6Mn4Ce sample from oxalate route sintered at 400 A degrees C showed the maximum reaction rate of 0.50 mmol gcat(-1)h(-1); T90 of the catalyst is 216 A degrees C. The catalytic activity is related to surface area, pore size distribution, surface elemental species, particle size distribution and low temperature reducibility which may derived from synergistic effect between manganese and cerium oxide. Compared with nitrate precursors, catalyst from oxalate route can be more finely dispersed on the pores of silica without damaging the pore structure of support. The role of silica is not only a support, but also an in situ reaction site for precursor's decomposition, which ensure the finely distribution of active components. In addition, the best catalyst showed good stability with prolonged time on stream.
关键词Oxalate Route Benzene Oxidation Synergistic Effect
文章类型Article
WOS标题词Science & Technology ; Physical Sciences ; Technology
DOI10.1007/s10934-017-0424-z
收录类别SCI
语种英语
关键词[WOS]MANGANESE OXIDE CATALYSTS ; COMPOSITE OXIDES ; LOW-TEMPERATURE ; SELECTIVE OXIDATION ; MNOX-CEO2 CATALYSTS ; DEEP OXIDATION ; CO OXIDATION ; VOCS ; COMBUSTION ; REMOVAL
WOS研究方向Chemistry ; Materials Science
WOS类目Chemistry, Applied ; Chemistry, Physical ; Materials Science, Multidisciplinary
项目资助者Chinese Academy of Sciences(XDB05050000)
WOS记录号WOS:000419943300011
引用统计
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/24087
专题多相复杂系统国家重点实验室
作者单位1.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
推荐引用方式
GB/T 7714
Li, Weiman,Liu, Haidi,Ma, Xiang,et al. Fabrication of silica supported Mn-Ce benzene oxidation catalyst by a simple and environment-friendly oxalate approach[J]. JOURNAL OF POROUS MATERIALS,2018,25(1):107-117.
APA Li, Weiman,Liu, Haidi,Ma, Xiang,Mo, Shengpeng,Li, Shuangde,&Chen, Yunfa.(2018).Fabrication of silica supported Mn-Ce benzene oxidation catalyst by a simple and environment-friendly oxalate approach.JOURNAL OF POROUS MATERIALS,25(1),107-117.
MLA Li, Weiman,et al."Fabrication of silica supported Mn-Ce benzene oxidation catalyst by a simple and environment-friendly oxalate approach".JOURNAL OF POROUS MATERIALS 25.1(2018):107-117.
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