Ni-based catalysts derived from Ni-Zr-Al ternary hydrotalcites show outstanding catalytic properties for low-temperature CO2 methanation

doi:10.1016/j.apcatb.2021.120218

	Ni-based catalysts derived from Ni-Zr-Al ternary hydrotalcites show outstanding catalytic properties for low-temperature CO2 methanation
	He, Feng 3,4; Zhuang, Jiahao 4,5; Lu, Bin 6; Liu, Xianglin 7; Zhang, Jianling ; Gu, Fangna 4; Zhu, Minghui 7; Xu, Jing 7; Zhong, Ziyi 1,8; Xu, Guangwen 2,3
刊名	APPLIED CATALYSIS B-ENVIRONMENTAL
	2021-09-15
卷号	293 页码:15
关键词	Ni-Zr-Al hydroxides Ni-based catalyst CO2 methanation Mechanism High performance
ISSN号	0926-3373
DOI	10.1016/j.apcatb.2021.120218
英文摘要	Developing 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.
资助项目	National Natural Science Foundation of China[21776286] ; National Key R&D Program of China[2018YFB0604501]
WOS关键词	GENERALIZED GRADIENT APPROXIMATION ; LAYERED DOUBLE HYDROXIDES ; TOTAL-ENERGY CALCULATIONS ; CARBON-DIOXIDE ; NI/AL2O3 CATALYSTS ; ENHANCED ACTIVITY ; NICKEL-CATALYSTS ; NI/ZRO2 CATALYST ; BASIC PROPERTIES ; HYDROGEN
WOS研究方向	Chemistry ; Engineering
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000663205600003
资助机构	National Natural Science Foundation of China ; National Key R&D Program of China
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/49201]
专题	中国科学院过程工程研究所
通讯作者	Gu, Fangna; Xu, Guangwen; Su, Fabing
作者单位	1.Guangdong Technion Israel Inst Technol GTIIT, Dept Chem Engn, 241 Daxue Rd, Shantou 515063, Peoples R China 2.Shenyang Univ Chem Technol, Inst Ind Chem & Energy Technol, Shenyang 110142, Peoples R China 3.Shenyang Univ Chem Technol, Minist Educ, Key Lab Resources Chem & Mat, Shenyang 110142, Peoples R China 4.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China 5.Univ Chinese Acad Sci, Sch Chem Engn, Beijing 100049, Peoples R China 6.CNBM Bengbu Design & Res Inst Glass Ind Co Ltd, Bengbu 233000, Peoples R China 7.East China Univ Sci & Technol, Sch Chem Engn, State Key Lab Chem Engn, Shanghai 200237, Peoples R China 8.Technion Israel Inst Technol IIT, IL-32000 Haifa, Israel
推荐引用方式 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.