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Roles of Oxygen Vacancies of CeO2 and Mn-Doped CeO2 with the Same Morphology in Benzene Catalytic Oxidation

文献类型：期刊论文

作者Yang, Min1; Shen, Genli3; Wang, Qi3; Deng, Ke3; Liu, Mi3; Chen, Yunfa2; Gong, Yan3; Wang, Zhen3
刊名MOLECULES
出版日期2021-11-01
卷号26期号:21页码:15
关键词Mn-doped CeO2 pure CeO2 morphology oxygen vacancy benzene oxidation
DOI10.3390/molecules26216363
英文摘要Mn-doped CeO2 and CeO2 with the same morphology (nanofiber and nanocube) have been synthesized through hydrothermal method. When applied to benzene oxidation, the catalytic performance of Mn-doped CeO2 is better than that of CeO2, due to the difference of the concentration of O vacancy. Compared to CeO2 with the same morphology, more oxygen vacancies were generated on the surface of Mn-doped CeO2, due to the replacement of Ce ion with Mn ion. The lattice replacement has been analyzed through XRD, Raman, electron energy loss spectroscopy and electron paramagnetic resonance technology. The formation energies of oxygen vacancy on the different exposed crystal planes such as (110) and (100) for Mn-doped CeO2 were calculated by the density functional theory (DFT). The results show that the oxygen vacancy is easier to be formed on the (110) plane. Other factors influencing catalytic behavior have also been investigated, indicating that the surface oxygen vacancy plays a crucial role in catalytic reaction.
WOS关键词LOW-TEMPERATURE OXIDATION ; MESOPOROUS CO3O4 ; OXIDE CATALYSTS ; MIXED OXIDES ; NO ; CERIA ; TOLUENE ; VOCS ; REDUCTION ; NH3
资助项目National Key R&D Program of China[2016YFC0207100] ; National Basic Research Program of China[2017YFA0205000]
WOS研究方向Biochemistry & Molecular Biology ; Chemistry
语种英语
WOS记录号WOS:000719491500001
出版者MDPI
资助机构National Key R&D Program of China ; National Basic Research Program of China
源URL[http://ir.ipe.ac.cn/handle/122111/51164]  
专题中国科学院过程工程研究所
通讯作者Gong, Yan; Wang, Zhen
作者单位1.Univ Sci & Technol, Sch Chem & Biol Engn, Beijing 100083, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
3.Natl Ctr Nanosci & Technol, CAS Ctr Excellence Nanosci, CAS Key Lab Standardizat & Measurement Nanotechno, Beijing 100190, Peoples R China
推荐引用方式
GB/T 7714		 Yang, Min,Shen, Genli,Wang, Qi,et al. Roles of Oxygen Vacancies of CeO2 and Mn-Doped CeO2 with the Same Morphology in Benzene Catalytic Oxidation[J]. MOLECULES,2021,26(21):15.
APA Yang, Min.,Shen, Genli.,Wang, Qi.,Deng, Ke.,Liu, Mi.,...&Wang, Zhen.(2021).Roles of Oxygen Vacancies of CeO2 and Mn-Doped CeO2 with the Same Morphology in Benzene Catalytic Oxidation.MOLECULES,26(21),15.
MLA Yang, Min,et al."Roles of Oxygen Vacancies of CeO2 and Mn-Doped CeO2 with the Same Morphology in Benzene Catalytic Oxidation".MOLECULES 26.21(2021):15.

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来源：过程工程研究所

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