Selective catalytic reduction of NO over carbon nanotubes supported CeO2

被引：81

作者：

Chen, Xiongbo ^{[1
]}

Gao, Shan ^{[1
]}

Wang, Haiqiang ^{[1
]}

Liu, Yue ^{[1
]}

Wu, Zhongbiao ^{[1
]}

机构：

[1] Zhejiang Univ, Dept Environm Engn, Hangzhou 310058, Zhejiang, Peoples R China

来源：

CATALYSIS COMMUNICATIONS | 2011年 / 14卷 / 01期

基金：

中国国家自然科学基金;

关键词：

Medium temperature SCR; Carbon nanotube; Cerium oxide; NO conversion; LOW-TEMPERATURE SCR; NITRIC-OXIDE; NH3; AMMONIA; IRON; DEPOSITION; MECHANISM; REMOVAL; TIO2;

D O I：

10.1016/j.catcom.2011.07.005

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：

A new cerium oxide catalyst supported on HNO3-treated carbon nanotubes (TCNTs) was prepared for the first time and used for the selective catalytic reduction of NO with ammonia. CeO2 located on the outer surface or in the tubular channel of CNTs could be observed. Among these tested samples, carbon nanotubes loading Ce with a Ce/C mole ratio of 0.003 (calcined at 350 degrees C) obtained the best NO conversion in the medium temperature range of 250-400 degrees C. The activity improvement of 0.3 Ce/TCNTs (350) was attributed to the enlarged surface area by HNO3 treatment, the suitable crystal size of CeO2 and the well dispersion of ceria on the surface of CNTs. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：1 / 5

页数：5

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