CO2 methanation over Ca doped ordered mesoporous Ni-Al composite oxide catalysts: The promoting effect of basic modifier

被引:74
|
作者
Xu, Leilei [1 ]
Yang, Haoming [1 ]
Chen, Mindong [1 ]
Wang, Fagen [2 ]
Nie, Dongyang [1 ]
Qi, Lu [1 ]
Lian, Xinbo [1 ]
Chen, Hanxiang [1 ]
Wu, Mei [3 ]
机构
[1] Nanjing Univ Informat Sci & Technol, Jiangsu Key Lab Atmospher Environm Monitoring & P, Sch Environm Sci & Engn, Collaborat Innovat Ctr Atmospher Environm & Equip, Nanjing 210044, Jiangsu, Peoples R China
[2] Jiangsu Univ, Sch Chem & Chem Engn, 301 Xuefu Rd, Zhenjiang 212013, Peoples R China
[3] Huaiyin Inst Technol, Fac Chem Engn, Key Lab Palygorskite Sci & Appl Technol Jiangsu P, Huaian 223003, Peoples R China
基金
中国国家自然科学基金;
关键词
Ca modification; CO2; activation; Ni catalyst; Low-temperature activity; methanation; SYNTHETIC NATURAL-GAS; TEMPERATURE-PROGRAMMED-REDUCTION; ONE-POT SYNTHESIS; CARBON-DIOXIDE; NICKEL-OXIDE; METAL-OXIDES; HYDROGEN; PRETREATMENT; STABILITY; SILICA;
D O I
10.1016/j.jcou.2017.07.014
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Ni is usually used as the catalyst for the CO2 methanation to generate the substitute natural gas (SNG) due to the low cost. However, it often possesses relatively worse low-temperature catalytic activity than the noble metal counterparts. In order to solve this problem, a series of Ca doped Ni based ordered mesoporous materials had been facilely fabricated via the one-pot evaporation induced self-assembly (EISA) strategy and directly used as the catalysts for CO2 methanation. These materials had been systematically characterized by XRD, N-2 adsorption-desorption, TEM, SAED, EDS, XPS, H-2-TPR, and CO2-TPD measurements. It was discovered that the large specific surface areas (210.7-240.7 m(2)/g), big pore volumes (0.37-0.46 cm(3)/g), and narrow pore size distributions (8.3-9.5 nm) of these materials had been successfully retained after 700 degrees C calcination. In these materials, Ni species were homogenously dispersed among the Al2O3 matrix via the one-pot fabrication strategy and the strong interaction between Ni and mesoporous framework had been formed. Thus, the seriously thermal sintering of the metallic Ni nanoparticles could be successfully inhibited. Hence, they displayed no deactivation after 50 h stability test toward CO2 methanation. More importantly, the doping of the Ca greatly enhanced the surface basicity, which could favor the chemisorption and activation of CO2. As a result, the apparent activation energies of CO2 could be remarkably decreased from 75.2 to 53.6 kJ/mol and the low-temperature catalytic activity had been significantly promoted. Therefore, these Ca doped Ni based ordered mesoporous materials promised potential catalysts for CO2 methanation.
引用
收藏
页码:200 / 210
页数:11
相关论文
共 50 条
  • [11] Methane combustion over Pd/Ni-Al oxide catalysts: Effect of Ni/Al ratio in the Ni-Al oxide support
    Hong, Eunpyo
    Jeon, Su-A
    Lee, Sang-Sup
    Shin, Chae-Ho
    KOREAN JOURNAL OF CHEMICAL ENGINEERING, 2018, 35 (09) : 1815 - 1822
  • [12] Methane combustion over Pd/Ni-Al oxide catalysts: Effect of Ni/Al ratio in the Ni-Al oxide support
    Eunpyo Hong
    Su-A Jeon
    Sang-Sup Lee
    Chae-Ho Shin
    Korean Journal of Chemical Engineering, 2018, 35 : 1815 - 1822
  • [13] Unique catalysis of Ni-Al hydrotalcite derived catalyst in CO2 methanation: Cooperative effect between Ni nanoparticles and a basic support
    State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning
    116023, China
    J. Energy Chem., 5 (587-592):
  • [14] Unique catalysis of Ni-Al hydrotalcite derived catalyst in CO2 methanation: cooperative effect between Ni nanoparticles and a basic support
    He, Lei
    Lin, Qingquan
    Liu, Yu
    Huang, Yanqiang
    JOURNAL OF ENERGY CHEMISTRY, 2014, 23 (05) : 587 - 592
  • [15] Unique catalysis of Ni-Al hydrotalcite derived catalyst in CO2 methanation: cooperative effect between Ni nanoparticles and a basic support
    Lei He
    Qingquan Lin
    Yu Liu
    Yanqiang Huang
    Journal of Energy Chemistry, 2014, (05) : 587 - 592
  • [16] Selective methanation of CO in hydrogen-rich gases involving large amounts of CO2 over Ru-modified Ni-Al mixed oxide catalysts
    Kimura, Masae
    Miyao, Toshihiro
    Komori, Shingo
    Chen, Aihua
    Higashiyama, Kazutoshi
    Yamashita, Hisao
    Watanabe, Masahiro
    APPLIED CATALYSIS A-GENERAL, 2010, 379 (1-2) : 182 - 187
  • [17] CO2 methanation over a Ni based ordered mesoporous catalyst for the production of synthetic natural gas
    Xu, Leilei
    Wang, Fagen
    Chen, Mindong
    Zhang, Jian
    Yuan, Kaidi
    Wang, Liangjun
    Wu, Kai
    Xu, Guoqin
    Chen, Wei
    RSC ADVANCES, 2016, 6 (34) : 28489 - 28499
  • [18] MoOx-Doped Ordered Mesoporous Ni/Al2O3 Catalyst for CO Methanation
    Zhang, Yang
    Yang, Hongyuan
    Liu, Qing
    Bian, Bing
    ENERGY TECHNOLOGY, 2020, 8 (06)
  • [19] MoOx-Doped Ordered Mesoporous Ni/Al2O3 Catalyst for CO Methanation
    Zhang, Yang
    Yang, Hongyuan
    Liu, Qing
    Bian, Bing
    Liu, Qing (qliu@sdust.edu.cn), 1600, Wiley-VCH Verlag (08):
  • [20] Facile and efficient synthesis of ordered mesoporous MIL-53(Al)-derived Ni catalysts with improved activity in CO2 methanation
    Grad, Oana
    Kasza, Angela M.
    Turza, Alexandru
    Dan, Monica
    Barbu-Tudoran, Lucian
    Lazar, Mihaela D.
    Mihet, Maria
    JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING, 2023, 11 (02):