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MnO2-nanowire@NiO-nanosheet core-shell hybrid nanostructure derived interfacial Effect for promoting catalytic oxidation activity
Deng, Yuzhou1,2; Tang, Wenxiang3,4; Li, Wenhui1; Chen, Yunfa1
2018-06-15
发表期刊CATALYSIS TODAY
ISSN0920-5861
卷号308页码:58-63
摘要Nanostructure-derived interfacial effect plays a great role in enhancing catalytic activities. Herein, a MnO2 nanowires@NiO nanosheets core-shell hybrid nanostructure was successfully prepared by uniformly decorating NiO nanosheets on the one-dimensional MnO2 nanowires. The physi-chemical properties of the MnO2 and MnO2@NiO were characterized by using XRD, BET, SEM, H-2-TPR and XPS techniques. Compared to the single MnO2 nanowires, the MnO2@NiO nanocomposite with better low-temperature reducibility and more active surface oxygen species exhibited much better performance in complete oxidation of benzene, giving the temperatures for 100% benzene conversion of 320 degrees C under the conditions of 1000 ppm benzene in air and space velocity of 120,000 mL g(-1) h(-1) while the value over pure MnO2 was 380 degrees C. The novel hetero-interface constructed between MnO2 and NiO core-shell nanostructures might make a great contribution on this significantly promoting effect.
关键词Interfacial Effect Mno2-nanowires@nio-nanosheets Hybrid Nanostructure Catalytic Oxidation Benzene
文章类型Article
WOS标题词Science & Technology ; Physical Sciences ; Technology
DOI10.1016/j.cattod.2017.07.007
收录类别SCI
语种英语
关键词[WOS]COMPLETE BENZENE OXIDATION ; TRANSITION-METAL OXIDES ; LOW-TEMPERATURE ; DEEP OXIDATION ; TOLUENE COMBUSTION ; COMPOSITE OXIDES ; GASEOUS BENZENE ; DOPED CEO2 ; MN ; PERFORMANCE
WOS研究方向Chemistry ; Engineering
WOS类目Chemistry, Applied ; Chemistry, Physical ; Engineering, Chemical
项目资助者Chinese Academy of Sciences(XDB05050000)
WOS记录号WOS:000429527800008
引用统计
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/24145
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
3.Univ Connecticut, Dept Mat Sci & Engn, 97 N Eagleville Rd, Storrs, CT 06269 USA
4.Univ Connecticut, Inst Mat Sci, 97 N Eagleville Rd, Storrs, CT 06269 USA
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Deng, Yuzhou,Tang, Wenxiang,Li, Wenhui,et al. MnO2-nanowire@NiO-nanosheet core-shell hybrid nanostructure derived interfacial Effect for promoting catalytic oxidation activity[J]. CATALYSIS TODAY,2018,308:58-63.
APA Deng, Yuzhou,Tang, Wenxiang,Li, Wenhui,&Chen, Yunfa.(2018).MnO2-nanowire@NiO-nanosheet core-shell hybrid nanostructure derived interfacial Effect for promoting catalytic oxidation activity.CATALYSIS TODAY,308,58-63.
MLA Deng, Yuzhou,et al."MnO2-nanowire@NiO-nanosheet core-shell hybrid nanostructure derived interfacial Effect for promoting catalytic oxidation activity".CATALYSIS TODAY 308(2018):58-63.
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