Partial oxidation of methane over Ni catalysts based on hexaaliminate- or perovskite-type oxides

被引：45
|
作者：
Utaka, T
Al-Drees, SA
Ueda, J
Iwasa, Y
Takeguchi, T
Kikuchi, R
Eguchi, K [1 ]
机构：
[1] Kyoto Univ, Grad Sch Engn, Dept Energy & Hydrocarbon Chem, Sakyo Ku, Kyoto 6068501, Japan
[2] King Abdulaziz City Sci & Technol, Petr & Petrochem Res Inst, Riyadh 11442, Saudi Arabia
来源：
APPLIED CATALYSIS A-GENERAL | 2003年 / 247卷 / 01期
关键词：
partial oxidation of methane; hexaaluminate; perovskite; Ni catalysts;
D O I：
10.1016/S0926-860X(03)00129-7
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Ni/Al2O3. hexaaluminate-type BaNixAl12-xO19-alpha and perovskite-type LaAl5/6Ni1/6O3 were investigated for partial oxidation of methane (POM). The hexaaluminate-type BaNiAl11O19-alpha calcined at 1400degreesC demonstrated more stable and higher activity than Ni/Al2O3 calcined at 1000degreesC. The BaNiAl11O19-alpha catalyst reduced at 1000 degreesC was more active than the catalyst reduced at 800 degreesC. The results from XPS analysis revealed that the hexaaluminate-type catalysts calcined and reduced at higher temperature had Ni-rich surfaces and highly dispersed Ni species derived from hexaaluminate crystal, resulting in high activity for partial oxidation of methane. (C) 2003 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：125 / 131
页数：7
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