WASET
    Yan Zeng and  Hongfang Ma and  Haitao Zhang and  Weiyong Ying,  Na Promoted Ni/γ-Al2O3 Catalysts Prepared by Solution Combustion Method for Syngas Methanation.   journal   = {International Journal of Chemical and Molecular Engineering}, [online]. World Academy of Science, Engineering and Technology.
    June 2014, vol. 91(7). 649 - 653
    [viewed 24 April 2024]. Available from: https://publications.waset.org/pdf/9998776.