Control of the directions of oxidative transformation of methane over nickel-based catalysts by acid-base properties

被引：6

作者：

Miao, Q ^{[1
]}

Xiong, GX ^{[1
]}

Sheng, SS ^{[1
]}

Guo, XX ^{[1
]}

机构：

[1] Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China

来源：

REACTION KINETICS AND CATALYSIS LETTERS | 1997年 / 62卷 / 02期

基金：

中国国家自然科学基金;

关键词：

oxidative transformation of methane; nickel-based catalysts; acid-base properties; partial oxidation of methane; oxidative coupling of methane;

D O I：

10.1007/BF02475477

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：

Two completely different directions of the oxidative transformation of methane (OTM) were performed on nickel-based catalysts due to the different acid-base properties of those catalysts. The relatively acidic LaNiOx and LiNiLaOx/Al2O3 catalysts exhibit excellent Partial Oxidation of Methane to Syngas (POM) performance. However, the relatively basic LiTiLaOx catalyst has a good Oxidative Coupling of Methane to C-2 Hydrocarbons (OCM) activity. The basic properties of the catalyst makes it difficult to reduce nickel and keeps it in the oxidized state. Reduced nickel is necessary for POM and oxidized nickel for the OCM reaction.

引用

页码：363 / 370

页数：8

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