文献类型：期刊文献

英文题名：Ce-modified AlZr pillared clays supported-transition metals for catalytic combustion of chlorobenzene

作者：Feng, Binbin[1];Wei, Yingxi[1];Qiu, Yingnan[1];Zuo, Shufeng[1];Ye, Na[1]

机构：[1]Shaoxing Univ, Zhejiang Key Lab Alternat Technol Fine Chem Proc, Shaoxing 312000, Peoples R China

年份：2018

卷号：36

期号：11

起止页码：1169

外文期刊名：JOURNAL OF RARE EARTHS

收录：SCI-EXPANDED(收录号：WOS:000448801000007)、、EI(收录号：20182905563122)、Scopus(收录号：2-s2.0-85049920271)、WOS

基金：Project supported by 2017 National Innovation Training Program for College Students (201710349004), the Project of Shaoxing University (2015LG1002), 2017 Zhejiang Province Innovation Training Program for College Students (2017R428024) and National Natural Science Foundation of China (21577094).

语种：英文

外文关键词：Montmorillonite; AlZr-PILC; Mn-Ce based catalysts; Catalytic combustion; Chlorobenzene; Rare earths

外文摘要：In this article, we provided a one-step hydrothermal method to prepare composite AlZr pillaring agents, and synthesized AlZr-pillared clays (AlZr-PILC) via ion exchange. Compared with conventional methods, our method successfully shortened synthetic routes and greatly reduced consumption of the materials. Then, AlZr-PILC-supported manganese and cerium oxide catalysts were obtained by impregnation method. The compositions and properties of these catalysts were characterized by some technical means. The energy dispersive X-ray spectroscopy clearly shows the existence of Mn, Ce, and O, which indicates the successful loading of the active components on the surface of AlZr-PILC. Meanwhile, the results of X-ray diffraction (XRD) and N-2 adsorption experiments demonstrate that the synthesized AlZr-PILC outperforms the raw clays (Na-mmt) and mononuclear Al-PILC in the catalytic combustion of chlorobenzene. XRD and high-resolution transmission electron microscopy also proves that the high activity of them is related to the high dispersion of the oxides and the exposure of more active sites. H-2-temperature-programmed reduction shows that cerium can promote the redox cycles of the manganese system through the strong interactions between MnO2, CeO2 and AlZr-PILC. In particular, MnCe(9:1)/AlZr-PILC shows the best catalytic activity in the catalytic combustion of chlorobenzene. (C) 2018 Chinese Society of Rare Earths. Published by Elsevier B.V. All rights reserved.