Effects of cerium oxide on Ni/Al2O3 catalysts for decomposition of CH4 and C2H4

被引：0

作者：

Yang, YL ^{[1
]}

Li, WZ ^{[1
]}

Xu, HY ^{[1
]}

机构：

[1] Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China

来源：

JOURNAL OF RARE EARTHS | 2003年 / 21卷 / 04期

关键词：

catalytic chemistry; Ni/Al2O3; catalyst; cerium oxide; methane; ethylene; decomposition; rare earths;

D O I：

暂无

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

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.

引用

页码：427 / 429

页数：3

共 4 条

[1] NONEQUILIBRIUM OXIDATIVE CONVERSION OF METHANE TO CO AND H-2 WITH HIGH SELECTIVITY AND PRODUCTIVITY OVER NI/AL2O3 AT LOW-TEMPERATURES
CHOUDHARY, VR
RAJPUT, AM
PRABHAKAR, B
[J]. JOURNAL OF CATALYSIS, 1993, 139 (01) : 326 - 328
[2] COMPARISON OF MONOLITH-SUPPORTED METALS FOR THE DIRECT OXIDATION OF METHANE TO SYNGAS
TORNIAINEN, PM
CHU, X
SCHMIDT, LD
[J]. JOURNAL OF CATALYSIS, 1994, 146 (01) : 1 - 10
[3] XU HY, 1995, NATURAL GAS CHEM IND, V20, P1
[4] YU C, 1993, STUD SURF SCI CATAL, V75, P1119

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