Mesoporous LaFeO3 catalysts for the oxidation of toluene and carbon monoxide
Mesoporous LaFeO3 catalysts for the oxidation of toluene and carbon monoxide
复制标题
用于氧化甲苯和一氧化碳的介孔 LaFeO3 催化剂
DOI：
10.1016/s1872-2067(12)60689-5
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发表时间：
2013-12-01
影响因子：
16.5
通讯作者：
Dai, Hongxing
中科院分区：
文献类型：
--
作者：
Gao, Baozu;Deng, Jiguang;Dai, Hongxing
以KIT-6和二氧化硅纳米球为硬模板制备了比表面积分别为138和65 m2/g的正交相蠕虫状介孔LaFeO3催化剂LFO-1和LFO-2.在20000 mL/（g.h）下，LFO-1对CO氧化的催化活性T-50%和T-90%分别为155 ℃和180 ℃，对甲苯氧化的催化活性T-90%和T-90%分别为200 ℃和253 ℃。该催化剂具有较大的比表面积（138 m（2）/g）、较高的吸附氧浓度、较好的低温还原性和蠕虫孔状的介孔结构，具有优异的催化性能。(C)2013年，中国科学院大连化学物理研究所。Elsevier B. V.出版，保留所有权利。
Wormhole-like orthorhombic LaFeO3 catalysts (LFO-1 and LFO-2) were prepared using the KIT-6 and SiO2 nanospheres as template, respectively. LFO-1 showed better catalytic activity with T-50% and T-90% of 155 and 180 degrees C for CO oxidation, and of 200 and 253 degrees C for toluene oxidation at 20000 mL/(g.h). The excellent catalytic performance was associated with its larger surface area (138 m(2)/g), higher adsorbed oxygen concentration, and better low-temperature reducibility as well as a wormhole-like mesoporous structure. (C) 2013, Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.