Effects of Cerium Oxide on Ni/Al2O3 Catalysts for Decomposition of CH4 and C2H4
来源期刊：JOURNAL OF RARE EARTHS2003年第4期
论文作者：杨咏来 徐恒泳 李文钊
Key words：catalytic chemistry; Ni/Al2O3 catalyst; cerium oxide; methane; ethylene; decomposition; rare earths;
Abstract: Characteristics of carbon deposition of CH4 and C2H4 decomposition over supported Ni and Ni-Ce catalysts were studied by using a pulse reaction as well as BET, TPR, XPS and hydrogen chemisorption techniques. It is found that there is a metal-semiconductor interaction (MScI) in the Ni-Ce catalyst, and the effect of MScI on the carbon deposition of CH4 decomposition is opposite to that of C2H4. A novel model of carbon deposition of CH4 or C2H4 decomposition was proposed.
杨咏来1，徐恒泳1，李文钊1
(1.Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China)
Abstract:Characteristics of carbon deposition of CH4 and C2H4 decomposition over supported Ni and Ni-Ce catalysts were studied by using a pulse reaction as well as BET, TPR, XPS and hydrogen chemisorption techniques. It is found that there is a metal-semiconductor interaction (MScI) in the Ni-Ce catalyst, and the effect of MScI on the carbon deposition of CH4 decomposition is opposite to that of C2H4. A novel model of carbon deposition of CH4 or C2H4 decomposition was proposed.
Key words:catalytic chemistry; Ni/Al2O3 catalyst; cerium oxide; methane; ethylene; decomposition; rare earths;
【全文内容正在添加中】
