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Ni-based catalysts derived from Ni-Zr-Al ternary hydrotalcites show outstanding catalytic properties for low-temperature CO2 methanation
He, Feng1,2; Zhuang, Jiahao2,3; Lu, Bin4; Liu, Xianglin5; Zhang, Jianling; Gu, Fangna2; Zhu, Minghui5; Xu, Jing5; Zhong, Ziyi6,7; Xu, Guangwen1,8; Su, Fabing2,8
2021-09-15
Source PublicationAPPLIED CATALYSIS B-ENVIRONMENTAL
ISSN0926-3373
Volume293Pages:15
AbstractDeveloping Ni-based catalysts with high activity and stability in low-temperature methanation is necessary due to their sintering and coking at high temperatures. Here, we report our developed novel Ni-Zr-Al catalysts derived from Ni-Zr-Al ternary hydrotalcites synthesized by a hydrothermal process, followed by a reduction in hydrogen. Comparing with the Ni-Al catalyst derived from Ni-Al hydrotalcite and the commercial Ni-based catalyst, the Ni-Zr-Al catalysts show a remarkably higher low-temperature activity (210-270 degrees C) in CO2 methanation. Both the experimental and theoretical calculations confirmed the introduction of Zr into the Ni-Al binary hydrotalcite could generate synergetic effects between Ni and ZrO2, resulting in more surface oxygen vacancies, basic sites, and abundant mesopores. In-situ DRIFTS analysis showed the CO2 methanation to CH4 follows the intermediate formate route. This work provides a new theoretical understanding of CO2 activation and methanation, and a practical way to address the existing problem for Ni-based catalysts.
KeywordNi-Zr-Al hydroxides Ni-based catalyst CO2 methanation Mechanism High performance
DOI10.1016/j.apcatb.2021.120218
Language英语
WOS KeywordGENERALIZED GRADIENT APPROXIMATION ; LAYERED DOUBLE HYDROXIDES ; TOTAL-ENERGY CALCULATIONS ; CARBON-DIOXIDE ; NI/AL2O3 CATALYSTS ; ENHANCED ACTIVITY ; NICKEL-CATALYSTS ; NI/ZRO2 CATALYST ; BASIC PROPERTIES ; HYDROGEN
Funding ProjectNational Natural Science Foundation of China[21776286] ; National Key R&D Program of China[2018YFB0604501]
WOS Research AreaChemistry ; Engineering
WOS SubjectChemistry, Physical ; Engineering, Environmental ; Engineering, Chemical
Funding OrganizationNational Natural Science Foundation of China ; National Key R&D Program of China
WOS IDWOS:000663205600003
PublisherELSEVIER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/49202
Collection中国科学院过程工程研究所
Corresponding AuthorGu, Fangna; Xu, Guangwen; Su, Fabing
Affiliation1.Shenyang Univ Chem Technol, Minist Educ, Key Lab Resources Chem & Mat, Shenyang 110142, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
3.Univ Chinese Acad Sci, Sch Chem Engn, Beijing 100049, Peoples R China
4.CNBM Bengbu Design & Res Inst Glass Ind Co Ltd, Bengbu 233000, Peoples R China
5.East China Univ Sci & Technol, Sch Chem Engn, State Key Lab Chem Engn, Shanghai 200237, Peoples R China
6.Guangdong Technion Israel Inst Technol GTIIT, Dept Chem Engn, 241 Daxue Rd, Shantou 515063, Peoples R China
7.Technion Israel Inst Technol IIT, IL-32000 Haifa, Israel
8.Shenyang Univ Chem Technol, Inst Ind Chem & Energy Technol, Shenyang 110142, Peoples R China
Recommended Citation
GB/T 7714
He, Feng,Zhuang, Jiahao,Lu, Bin,et al. Ni-based catalysts derived from Ni-Zr-Al ternary hydrotalcites show outstanding catalytic properties for low-temperature CO2 methanation[J]. APPLIED CATALYSIS B-ENVIRONMENTAL,2021,293:15.
APA He, Feng.,Zhuang, Jiahao.,Lu, Bin.,Liu, Xianglin.,Zhang, Jianling.,...&Su, Fabing.(2021).Ni-based catalysts derived from Ni-Zr-Al ternary hydrotalcites show outstanding catalytic properties for low-temperature CO2 methanation.APPLIED CATALYSIS B-ENVIRONMENTAL,293,15.
MLA He, Feng,et al."Ni-based catalysts derived from Ni-Zr-Al ternary hydrotalcites show outstanding catalytic properties for low-temperature CO2 methanation".APPLIED CATALYSIS B-ENVIRONMENTAL 293(2021):15.
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