文献类型：期刊文献

英文题名：Catalytic performance of pillared interlayered clays (PILCs) supported CrCe catalysts for deep oxidation of nitrogen-containing VOCs

作者：Huang, Qingin[1];Zuo, Shufeng[1,2];Zhou, Renxian[1]

机构：[1]Zhejiang Univ, Inst Catalysis, Hangzhou 310028, Zhejiang, Peoples R China;[2]Shaoxing Univ, Inst Appl Chem, Shaoxing 312000, Peoples R China

年份：2010

卷号：95

期号：3-4

起止页码：327

外文期刊名：APPLIED CATALYSIS B-ENVIRONMENTAL

收录：SCI-EXPANDED(收录号：WOS:000276755700017)、、EI(收录号：20101112769346)、Scopus(收录号：2-s2.0-77949293990)、WOS

基金：We gratefully acknowledge the financial supports from the Ministry of Science and Technology of China (No. 2004 CB 719504) and Nature Science Foundation of China (No. 20577043).

语种：英文

外文关键词：Pillared interlayered clays; Supported CrCe catalysts; NVOCs oxidation; Porous structure; Acidity

外文摘要：Na-montmorillonite (Na-mmt) and different pillared interlayered clays (Al-PILC, Zr-PILC, Ti-PILC and Al2O3/Ti-PILC) supported CrCe catalysts for the deep oxidation of nitrogen-containing VOCs (NVOCs) are synthesized and characterized by a combination of X-ray diffraction, N-2 adsorption/desorption, high resolution transmission electron microscopy, temperature-programmed reduction, temperature-programmed desorption and adsorption capacity tests techniques. The results indicate that a porous structure named "house of cards" forms during the pillaring and calcination processes. Both porous structure and acidity play important roles in deep oxidation of NVOCs. The mesoporous structure and the proper acid sites improve the catalytic activity of supported CrCe catalysts. Among all these catalysts, CrCe/Ti-PILC and CrCe/Al2O3/Ti-PILC exhibit higher catalytic activity than other catalysts. N-butylamine and ethylenediamine with -NH2 groups are easier to be destructed may be involved in the stronger adsorption on the acid sites of the catalysts. Much too strong adsorption of ethylenediamine on the acid sites leads to a lower activity compared with n-butylamine. Acetonitrile with C N bond and little interaction with acid sites is the most difficult to be decomposed. All the catalysts show a good control quality of NOx and the yield of NOx is limited within 2% during the whole experimental temperature range. Crown Copyright (C) 2010 Published by Elsevier B.V. All rights reserved.