Effect of nitric acid treatment on carbon nanotubes (CNTs)-cordierite monoliths supported ruthenium catalysts for ammonia synthesis

被引：21

作者：

Yu, Xiujin ^{[1
]}

Lin, Bingyu ^{[1
]}

Gong, Binbin ^{[1
]}

Lin, Jianxin ^{[1
]}

Wang, Rong ^{[1
]}

Wei, Kemei ^{[1
]}

机构：

[1] Fuzhou Univ, Natl Engn Res Ctr Chem Fertilizer Catalyst, Fuzhou 35002, Fujian, Peoples R China

来源：

CATALYSIS LETTERS | 2008年 / 124卷 / 3-4期

基金：

中国国家自然科学基金;

关键词：

CNTs-cordierite; nitric acid treatment; Ru; ammonia synthesis;

D O I：

10.1007/s10562-008-9534-1

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：

Nitric acid treatment of CNTs-cordierite monolith changes the amount of Mg, Si, Al and oxygen-containing functional groups, thereby influencing on the surface area and pore size distribution of composite materials. Appropriate treatment of CNTs-cordierite with nitric acid increases the surface area and the amount of micropores slightly, but improves the activities for ammonia synthesis noticeable, which might be a consequent of the variation of the amount of Mg, Si, Al and oxygen-containing functional groups. The ammonia synthesis activity of Ba-Ru/CNTs-cordierite increase by more than 30% if the support material is treated at 30 degrees C for 4 h with nitric acid.

引用

页码：168 / 173

页数：6

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