载体对甲烷在镍催化剂上分解反应的影响  

Effect of Supports on Methane Decomposition over Supported Ni-Catalysts

作　　者：莫若飞[1] 蒋毅[1] 郑林[1] 程极源[1] 曾忠义[1] 陈君和[1] 王华明[1] 

机构地区：[1]中国科学院成都有机化学研究所,成都610041

出　　处：《应用化学》2003年第4期394-396,共3页Chinese Journal of Applied Chemistry

摘　　要：The activities of Ni catalysts with different supports in methane decomposition have been studied. The activity order of the catalysts is Ni/SiO 2>Ni/MgO-Al 2O 3>Ni/CaO-Al 2O 3>Ni/α-Al 2O 3 and the interaction between Ni and the support is in the order of Ni/SiO 2<Ni/MgO-Al 2O 3<Ni/CaO-Al 2O 3<Ni/α-Al 2O 3. It is thus concluded that the weaker the interaction between Ni and support, the higher the activity of the catalyst. It was also found that the activity of the silica supported Ni-catalyst was increased with increase in its average pore radius and predominance pore radius.The activities of Ni catalysts with different supports in methane decomposition have been studied. The activity order of the catalysts is Ni/SiO 2>Ni/MgO-Al 2O 3>Ni/CaO-Al 2O 3>Ni/α-Al 2O 3 and the interaction between Ni and the support is in the order of Ni/SiO 2<Ni/MgO-Al 2O 3<Ni/CaO-Al 2O 3<Ni/α-Al 2O 3. It is thus concluded that the weaker the interaction between Ni and support, the higher the activity of the catalyst. It was also found that the activity of the silica supported Ni-catalyst was increased with increase in its average pore radius and predominance pore radius.

关 键 词：载体 甲烷 分解 负载镍催化剂 氢气 制备 

分 类 号：TQ116.2[化学工程—无机化工] O643.32[理学—物理化学]