Ni catalysts supported on nanosheet and nanoplate gamma-Al2O3 for carbon dioxide methanation

doi:10.1016/j.jechem.2017.09.029

	Ni catalysts supported on nanosheet and nanoplate gamma-Al2O3 for carbon dioxide methanation
	Sun, Jinwei 1; Wang, Yujiang 1; Zou, Haikui 1; Guo, Xiaoguang 2; Wang, Zhou-jun 1
刊名	JOURNAL OF ENERGY CHEMISTRY
	2019-02-01
卷号	29 页码:3-7
关键词	Alumina Nickel Size Nano Interaction Methanation
ISSN号	2095-4956
DOI	10.1016/j.jechem.2017.09.029
通讯作者	Wang, Zhou-jun(wangzj@mail.buct.edu.cn)
英文摘要	Nanosheet (S) and nanoplate (P) gamma-Al2O3 were synthesized by simple hydrothermal methods and employed as supports for Ni catalysts in CO2 methanation. Both of the nanostructured Ni/Al2O3 catalysts displayed good activity. In comparison, the Ni/Al2O3-S catalyst showed higher CO2 conversion than the Ni/Al2O3-P counterpart at the reaction temperature ranging from 250 to 400 degrees C. The physical and chemical properties of the catalysts were systematically characterized by N-2 sorption, X-ray diffraction (XRD), high resolution-transmission electron microscopy (HR-TEM), hydrogen temperature-programmed reduction (H-2-TPR) and CO2 temperature-programmed desorption (CO2-TPD) techniques. Higher specific surface area and stronger metal-support interactions were confirmed on the Ni/Al2O3-S catalyst, which may lead to smaller particle size of Ni nanoparticles. Moreover, the Ni/Al2O3-S catalyst possessed more abundant weak and medium basic sites, which would benefit the activation of CO2. The smaller Ni size and more suitable basic sites may rationalize the superior activity of the Ni/Al2O3-S catalyst. Besides, the Ni/Al2O3-S catalyst exhibited excellent stability at 325 degrees C for 40 h. (C) 2017 Science Press and Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier By, and Science Press. All rights reserved.
资助项目	National Natural Science Foundation of China[21776007] ; National Natural Science Foundation of China[21403012] ; National Natural Science Foundation of China[21473185] ; National Natural Science Foundation of China[U1532117] ; Fundamental Research Funds for the Central Universities[buctrc201311]
WOS关键词	CO2 METHANATION ; NANOPARTICLES ; PERFORMANCE ; HYDROGENATION ; SURFACE ; SILICA
WOS研究方向	Chemistry ; Energy & Fuels ; Engineering
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000451732100002
资助机构	National Natural Science Foundation of China ; National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/166456]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
通讯作者	Wang, Zhou-jun
作者单位	1.Beijing Univ Chem Technol, Beijing Key Lab Energy Environm Catalysis, State Key Lab Chem Resource Engn, 15 Beisanhuan East Rd, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Sun, Jinwei,Wang, Yujiang,Zou, Haikui,et al. Ni catalysts supported on nanosheet and nanoplate gamma-Al2O3 for carbon dioxide methanation[J]. JOURNAL OF ENERGY CHEMISTRY,2019,29:3-7.
APA	Sun, Jinwei,Wang, Yujiang,Zou, Haikui,Guo, Xiaoguang,&Wang, Zhou-jun.(2019).Ni catalysts supported on nanosheet and nanoplate gamma-Al2O3 for carbon dioxide methanation.JOURNAL OF ENERGY CHEMISTRY,29,3-7.
MLA	Sun, Jinwei,et al."Ni catalysts supported on nanosheet and nanoplate gamma-Al2O3 for carbon dioxide methanation".JOURNAL OF ENERGY CHEMISTRY 29(2019):3-7.