Promotion of CO2 methanation at low temperature over hydrotalcite-derived catalysts-effect of the tunable metal species and basicity

doi:10.1016/j.ijhydene.2020.09.193

	Promotion of CO2 methanation at low temperature over hydrotalcite-derived catalysts-effect of the tunable metal species and basicity
	Guo, Xinpeng 2,4; Gao, Denglei 2; He, Hongyan 2; Traitangwong, Atsadang 2; Gong, Maoming 2; Meeyoo, Vissanu 2; Peng, Zhijian 4; Li, Chunshan 1,2,3
刊名	INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
	2021
卷号	46 期号:1 页码:518-530
关键词	CO2 methanation Hydrotalcite-derived catalysts Low temperature
ISSN号	0360-3199
DOI	10.1016/j.ijhydene.2020.09.193
英文摘要	The CO2 methanation is an effective strategy for making full use of waste gases and converting them into valuable chemicals. Nowadays, the key challenge is the design of efficient catalysts to enhance low-temperature catalytic performance. A series of hydrotalcite-derived catalysts with tunable metal species were prepared by hydrothermal synthesis method for CO2 methanation at low-temperature. It was found that suitable synergistic effect between metallic Ni and basic sites in the support could be achieved by regulating the metal composition of hydrotalcite-derived catalysts. The NiMgAl catalyst exhibited the highest catalytic activity with CO2 conversion of 91.8% at 250 degrees C. The in situ DRIFTS measurements and DFT calculation further revealed that the alkaline metal oxide MgO and more Ni(111) active sites in the NiMgAl catalyst could promote the activation of CO2 and the formation of active intermediates, which actively participated in improving lowtemperature activity. Therefore, the ternary mixed oxides catalyst derived from LDHs precursors shows a potential strategy in achieving excellent catalytic properties for CO2 methanation at low-temperature. (C) 2020 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
资助项目	Science Fund for Creative Research Groups of the National Natural Science Foundation of China[21921005] ; NSFC-NRCT joint project[51661145012] ; National Natural Science Foundation/China[21706258] ; Key Research Program of Frontier Sciences, CAS[QYZDB-SSW-SLH022] ; K. C. Wong Education Foundation[GJTD-2018-04]
WOS关键词	CARBON-DIOXIDE METHANATION ; DOUBLE HYDROXIDES ; COKE-RESISTANCE ; PARTICLE-SIZE ; HYDROGENATION ; GAS ; CEO2 ; DIBENZOTHIOPHENE ; NANOPARTICLES ; CO-MO/AL2O3
WOS研究方向	Chemistry ; Electrochemistry ; Energy & Fuels
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000605110100042
资助机构	Science Fund for Creative Research Groups of the National Natural Science Foundation of China ; NSFC-NRCT joint project ; National Natural Science Foundation/China ; Key Research Program of Frontier Sciences, CAS ; K. C. Wong Education Foundation
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/43312]
专题	中国科学院过程工程研究所
通讯作者	Peng, Zhijian; Li, Chunshan
作者单位	1.Zhongke Langfang Inst Proc Engn, Langfang, Hebei, Peoples R China 2.Chinese Acad Sci, CAS Key Lab Green Proc & Engn, Natl Key Lab Clean & Efficient Coking Technol,Ins, State Key Lab Multiphase Complex Syst,Beijing Key, Beijing 100190, Peoples R China 3.Chinese Acad Sci, Innovat Acad Green Manufacture, Beijing 100190, Peoples R China 4.China Univ Geosci, Sch Sci, Beijing 100083, Peoples R China
推荐引用方式 GB/T 7714	Guo, Xinpeng,Gao, Denglei,He, Hongyan,et al. Promotion of CO2 methanation at low temperature over hydrotalcite-derived catalysts-effect of the tunable metal species and basicity[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,2021,46(1):518-530.
APA	Guo, Xinpeng.,Gao, Denglei.,He, Hongyan.,Traitangwong, Atsadang.,Gong, Maoming.,...&Li, Chunshan.(2021).Promotion of CO2 methanation at low temperature over hydrotalcite-derived catalysts-effect of the tunable metal species and basicity.INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,46(1),518-530.
MLA	Guo, Xinpeng,et al."Promotion of CO2 methanation at low temperature over hydrotalcite-derived catalysts-effect of the tunable metal species and basicity".INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 46.1(2021):518-530.