无机材料学报Issue(7)：694-698,5.DOI:10.15541/jim20140672
焙烧温度对Cu-Mn/-Al2O3催化剂催化氧化甲苯性能的影响
Effect of Calcination Temperature of Cu-Mn/-Al2O3 Catalysts on Performance for Catalytic Oxidation of Toluene
摘要
Abstract
Cu-Mn/g-Al2O3 catalysts were prepared by impregnation method and calcined at different temperatures (300-600℃), which were characterized by XRD, BET, H2-TPR and XPS. Their performances for catalytic oxidation of toluene were evaluated in a fixed-bed tubular reactor, and the correlation of catalytic activity with active phases or mole ratios of both Cu+/(Cu++Cu2+) and Mn4+/(Mn4++Mn3+) was discussed. Among all catalysts, the Cu-Mn/g-Al2O3 catalyst calcined at 550℃ shows the best catalytic activity, with a lowest reaction temperature (T95is286℃) and 100% selectivity of CO2. The generation of new phase (Cu1.4Mn1.6O4) and more amount of Cu+ and Mn4+ ions present on the surface of the catalyst calcined at 550℃ are responsible for its high activity.关键词
铜锰氧化物/催化氧化/甲苯/焙烧温度Key words
copper-manganese oxide/catalytic oxidation/toluene/calcination temperature分类
化学化工引用本文复制引用
郑遗凡,仲淑彬,吕德义,周环,郇昌永..焙烧温度对Cu-Mn/-Al2O3催化剂催化氧化甲苯性能的影响[J].无机材料学报,2015,(7):694-698,5.基金项目
国土资源部粘土矿物重点实验室开放课题(2014-K4) （2014-K4）
中国地质大调查项目(12120113015100)；浙江省公益性技术应用研究(分析测试)项目(2012C37013) Open Fund from Key Laboratory of Clay Minerals of the Ministry of Land and Resources, China(2014-K4) （12120113015100）
Project of China Geological Survey (12120113015100) （12120113015100）
Zhejiang Province Public Technology Applied Research Project (2012C37013) （2012C37013）
