文献类型：期刊文献

英文题名：Ni-Al₂O₃ catalysts prepared by solution combustion method for syngas methanation

作者：Zhao, Anmin[1];Ying, Weiyong[1];Zhang, Haitao[1];Ma, Hongfang[1];Fang, Dingye[1]

机构：[1]E China Univ Sci & Technol, Engn Res Ctr Large Scale Reactor Engn & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China

年份：2012

卷号：17

起止页码：34

外文期刊名：CATALYSIS COMMUNICATIONS

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000300483300007)】；

基金：This work is financially supported by the National Science and Technology Supporting Plan (2006BAE02B02).

语种：英文

外文关键词：Solution combustion method; Ni-Al2O3; Syngas methanation; Structure sensitivity

摘要：Ni-Al2O3 catalysts with varied Ni contents from 10 to 50 wt.% were prepared by solution combustion method for syngas methanation, and characterized by N-2 adsorption-desorption, XRD, H-2-TPR, SEM and TEM. The results show that the catalytic activity for syngas methanation over the Ni-Al2O3 catalysts is sensitive to Ni particle size and a maximum production rate of methane per unit mass of nickel can be achieved on Ni crystals around 41.8 nm. Moreover, Ni-Al2O3 catalysts with Ni loading above 20 wt.% show good high temperature stability, which is due to Ni particles scattered and spatially isolated by Al2O3. (C) 2011 Elsevier B.V. All rights reserved.