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Ni catalysts supported on nanosheet and nanoplate gamma-al2o3 for carbon dioxide methanation

文献类型:期刊论文

作者Sun, Jinwei1; Wang, Yujiang1; Zou, Haikui1; Guo, Xiaoguang2; Wang, Zhou-jun1
刊名Journal of energy chemistry
出版日期2019-02-01
卷号29页码:3-7
关键词Alumina Nickel Size Nano Interaction Methanation
ISSN号2095-4956
DOI10.1016/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.
WOS关键词CO2 METHANATION ; NANOPARTICLES ; PERFORMANCE ; HYDROGENATION ; SURFACE ; SILICA
WOS研究方向Chemistry ; Energy & Fuels ; Engineering
WOS类目Chemistry, Applied ; Chemistry, Physical ; Energy & Fuels ; Engineering, Chemical
语种英语
WOS记录号WOS:000451732100002
出版者ELSEVIER SCIENCE BV
URI标识http://www.irgrid.ac.cn/handle/1471x/2372989
专题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.

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来源:大连化学物理研究所

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