Synthesis of Ru nanoparticles confined in magnesium oxide-modified mesoporous alumina and their enhanced catalytic performance during ammonia decomposition

被引：17

作者：

Tan, Hua ^{[1
]}

Li, Kun ^{[2
]}

Sioud, Salim ^{[1
]}

Cha, Dongkyu ^{[2
]}

Amad, Maan H. ^{[1
]}

Hedhili, Mohamed Nejib ^{[2
]}

Al-Talla, Zeyad A. ^{[1
]}

机构：

[1] 4700 King Abdullah Univ Sci & Technol, Analyt Core Lab, Thuwal 239556900, Saudi Arabia

[2] 4700 King Abdullah Univ Sci & Technol, Imaging & Characterizat Lab, Thuwal 239556900, Saudi Arabia

来源：

CATALYSIS COMMUNICATIONS | 2012年 / 26卷

关键词：

Ru; Mesoporous alumina; MgO; Ammonia decomposition; COX-FREE HYDROGEN; FUEL-CELL APPLICATIONS; NH3; DECOMPOSITION; CARBON NANOTUBES; GENERATION;

D O I：

10.1016/j.catcom.2012.06.007

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：

In this work, Ru nanoparticles confined in the channels of ordered mesoporous alumina (MA) and magnesium oxide-modified ordered MA are prepared for the first time via a two-solvent technique, combined with the amorphous citrate route. Structural characterizations reveal that uniform 2-3 nm Ru nanoparticles are highly dispersed in the blockage-free channels of mesoporous supports. The Ru nanoparticles confined in MA modified with 20% molar ratio magnesium oxide exhibited a high catalytic activity and stability during ammonia decomposition due to the optimized particle size, basic support, lack of chlorine, and confined space provided by the channels of the mesoporous supports. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：248 / 252

页数：5

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