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Ceria imparts superior low temperature activity to nickel catalysts for CO2 methanation
Guo, Xinpeng1,2; He, Hongyan2; Traitangwong, Atsadang2; Gong, Maoming2; Meeyoo, Vissanu2; Li, Ping4; Li, Chunshan2,3; Peng, Zhijian1; Zhang, Suojiang2
2019-10-21
Source PublicationCATALYSIS SCIENCE & TECHNOLOGY
ISSN2044-4753
Volume9Issue:20Pages:5636-5650
AbstractCarbon dioxide methanation is well known to achieve the catalytic conversion of the CO2 molecule into value-added chemicals. At present, the important challenge is the development of efficient methanation catalysts at low reaction temperature. In this study, Ni-Al layered double hydroxides (LDHs) were used as catalyst precursors and modified by CeO2 for CO2 methanation. By the optimization of CeO2 loading, the reaction activity was improved, especially at low temperature. Among the prepared catalysts, the NiAl-MO/CeO2-5 catalyst exhibited the highest catalytic activity with a CO2 conversion of 91% at 250 degrees C. The addition of CeO2 was beneficial to the formation of small particles with good dispersion and provided appropriate basic sites and oxygen vacancies, which were conducive to the catalytic performance. DFT calculation and in situ DRIFTS results further verified that the catalyst with an appropriate amount of CeO2 was favorable for CO2 adsorption and conversion. The reaction mechanism results demonstrated that the high amount of formate intermediate species can accelerate the reaction and a certain amount of ceria in the catalyst could provide a suitable metal-support interaction, which was beneficial for CO2 methanation. The LDH as a catalyst precursor integrated with CeO2 shows a promising effect on CO2 methanation at low temperature.
DOI10.1039/c9cy01186b
Language英语
WOS KeywordCARBON-DIOXIDE ; DOUBLE HYDROXIDES ; ENHANCED ACTIVITY ; HYDROGENATION ; OXIDATION ; CEO2 ; PERFORMANCE ; ADSORPTION ; NANOPARTICLES ; SPECTROSCOPY
Funding ProjectMajor Program of National Natural Science Foundation of China[21890762] ; NSFC-NRCT joint project[51661145012] ; Foundation of State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering[2017-K08] ; Key Research Program of Frontier Sciences, CAS[QYZDB-SSW-SLH022] ; National Natural Science Foundation/China[21706258] ; K. C. Wong Education Foundation[GJTD-2018-04]
WOS Research AreaChemistry
WOS SubjectChemistry, Physical
Funding OrganizationMajor Program of National Natural Science Foundation of China ; NSFC-NRCT joint project ; Foundation of State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering ; Key Research Program of Frontier Sciences, CAS ; National Natural Science Foundation/China ; K. C. Wong Education Foundation
WOS IDWOS:000490981500007
PublisherROYAL SOC CHEMISTRY
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/31260
Collection中国科学院过程工程研究所
Corresponding AuthorLi, Chunshan; Peng, Zhijian
Affiliation1.China Univ Geosci, Sch Engn & Technol, Beijing 100083, Peoples R China
2.Chinese Acad Sci, Natl Key Lab Clean & Efficient Coking Technol, State Key Lab Multiphase Complex Syst, CAS Key Lab Green Proc & Engn,Beijing Key Lab Ion, Beijing 100190, Peoples R China
3.Zhongke Langfang Inst Proc Engn, Wuhan, Hebei, Peoples R China
4.Ningxia Univ, State Key Lab High Efficiency Utilizat Coal & Gre, Sch Chem & Chem Engn, Yinchuan 750021, Peoples R China
Recommended Citation
GB/T 7714
Guo, Xinpeng,He, Hongyan,Traitangwong, Atsadang,et al. Ceria imparts superior low temperature activity to nickel catalysts for CO2 methanation[J]. CATALYSIS SCIENCE & TECHNOLOGY,2019,9(20):5636-5650.
APA Guo, Xinpeng.,He, Hongyan.,Traitangwong, Atsadang.,Gong, Maoming.,Meeyoo, Vissanu.,...&Zhang, Suojiang.(2019).Ceria imparts superior low temperature activity to nickel catalysts for CO2 methanation.CATALYSIS SCIENCE & TECHNOLOGY,9(20),5636-5650.
MLA Guo, Xinpeng,et al."Ceria imparts superior low temperature activity to nickel catalysts for CO2 methanation".CATALYSIS SCIENCE & TECHNOLOGY 9.20(2019):5636-5650.
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