文献类型：期刊文章

作　　者：刘欢[1] 林毅[1] 马臻[1]

机构地区：[1]复旦大学环境科学与工程系上海市大气颗粒物污染与防治重点实验室,上海200433

出　　处：《Chinese Journal of Catalysis》

基　　金：supported by the National Natural Science Foundation of China (21177028)~~国家自然科学基金(21177028)

年　　份：2016

卷　　号：37

期　　号：1

起止页码：73-82

语　　种：中文

收录情况：AJ、BDHX、BDHX2014、CAS、CSA、CSA-PROQEUST、CSCD、CSCD2015_2016、EI(收录号：20160201777161)、JST、RSC、SCI(收录号：WOS:000368043100009)、SCI-EXPANDED(收录号：WOS:000368043100009)、SCIE、SCOPUS、WOS、ZGKJHX、核心刊

摘　　要：Recently,a one-pot self-assembly method was proposed for the synthesis of mesoporous Al2O3 and MOx-Al2O3 composite materials.However,few attempts have been made to use mesoporous MOx-Al2O3 composites to support metal oxides for catalysis.In the present work,mesoporous MOx-Al2O3（M = Mn,Fe,Co,Ni,Cu,Ba）materials were prepared by a one-pot self-assembly method using Pluronic P123 as a structure-directing agent.The obtained mesoporous materials were loaded with Rh2O3 nanoparticles via impregnation with Rh（NO3）3 followed by calcination in air at 500°C.The resulting catalysts were characterized by X-ray diffraction,N2 adsorption-desorption measurements,transmission electron microscopy,inductively coupled plasma optical emission spectrometry,X-ray photoelectron spectroscopy,and their catalytic activity and stability for CO oxidation and N2O decomposition were tested.The Rh2O3 nanoparticles were found to be on the order of1 nm in size and were highly dispersed on the high surface area mesoporous MOx-Al2O3 supports.A number of the Rh2O3/mesoporous MOx-Al2O3 catalysts exhibited higher catalytic activity than the Rh2O3/mesoporous Al2O3 prepared for comparison.

关 键 词：One-pot synthesis  Mesoporous alumina  Metal oxide  CO oxidation  N2O decomposition  

分 类 号：O643.36]