CAS OpenIR
Enhanced Low-Temperature Activity of CO2 Methanation Over Ni/CeO2 Catalyst
Ma, Yuan1,2; Liu, Jiao1; Chu, Mo3; Yue, Junrong1; Cui, Yanbin1; Xu, Guangwen1,4
2021-05-28
Source PublicationCATALYSIS LETTERS
ISSN1011-372X
Pages11
AbstractCeO2 nanorods (CeO2-nrs), CeO2 nanocubes (CeO2-ncs) and CeO2 nanopolyhedrons (CeO2-nps) were prepared by hydrothermal method and then NiO crystallites were deposited on these supports by precipitation-deposition, respectively. The physicchemical properties of Ni/CeO2 catalysts were characterized and performances for carbon dioxide methanation reaction were tested. The Ni/CeO2-nrs sample shows well metal dispersion and high concentration of oxygen vacancy, which leads to the high catalytic activity for CO2 methanation. Especially at 300 degrees C, the CO2 conversion could reach 60%. Further analysis reveals that the content of oxygen vacancy has a positive correlation with the surface area of catalyst. The largest surface area results in the most of oxygen vacancy on the Ni/CeO2-nrs catalyst, and then a large amount of CO2 could be activated at low temperatures. Meanwhile, large surface area facilitates the dispersion of active metals, and improves the degree of H-2 activation. The combined effect results in the promotion of catalytic activity for CO2 methanation at low temperatures. [GRAPHICS] .
KeywordCarbon dioxide Methane CeO2 Catalyst Support Oxygen vacancy Ni
DOI10.1007/s10562-021-03677-7
Language英语
WOS KeywordCARBON-DIOXIDE METHANATION ; NI CATALYSTS ; HYDROGENATION ; PERFORMANCE ; SELECTIVITY ; SURFACE
Funding ProjectFund of International Science and Technology Cooperation Program of China[2019YFC1906802]
WOS Research AreaChemistry
WOS SubjectChemistry, Physical
Funding OrganizationFund of International Science and Technology Cooperation Program of China
WOS IDWOS:000655889100004
PublisherSPRINGER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/48971
Collection中国科学院过程工程研究所
Corresponding AuthorLiu, Jiao
Affiliation1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
2.Ordos Environm Protect Investment Co Ltd, Ordos 017010, Inner Mongolia, Peoples R China
3.China Univ Min & Technol, Sch Chem & Environm Engn, Beijing 100083, Peoples R China
4.Shenyang Univ Chem Technol, Inst Ind Chem & Energy Technol, Shenyang 110142, Liaoning, Peoples R China
Recommended Citation
GB/T 7714
Ma, Yuan,Liu, Jiao,Chu, Mo,et al. Enhanced Low-Temperature Activity of CO2 Methanation Over Ni/CeO2 Catalyst[J]. CATALYSIS LETTERS,2021:11.
APA Ma, Yuan,Liu, Jiao,Chu, Mo,Yue, Junrong,Cui, Yanbin,&Xu, Guangwen.(2021).Enhanced Low-Temperature Activity of CO2 Methanation Over Ni/CeO2 Catalyst.CATALYSIS LETTERS,11.
MLA Ma, Yuan,et al."Enhanced Low-Temperature Activity of CO2 Methanation Over Ni/CeO2 Catalyst".CATALYSIS LETTERS (2021):11.
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