汤清虎,王京,黄晓娜,赵卉茹,魏志伟,赵培正

• 1:河南师范大学化学化工学院
• 2:绿色化学介质与反应省部共建教育部重点实验室

摘要(Abstract)：

采用共浸渍法制备Mn1K1/Al2O3催化剂,并以分子氧为氧化剂考察了其在苯甲醇液相氧化制苯甲醛反应中的催化性能。实验结果显示,焙烧温度和负载量对催化剂性能有重要影响,773 K焙烧的10%(wt)Mn1K1/Al2O3具有最高的催化活性,373 K下反应3 h时,苯甲醇转化率为72.9%,苯甲醛选择性为99%,且该催化剂可循环使用6次以上而其催化活性无明显降低。粉末X射线衍射(XRD)、N2物理吸附、拉曼光谱、X射线吸收光谱(XAS)、程序升温还原(H2-TPR)结果表明,负载在Al2O3表面的非晶态或小晶粒α-Mn O2是催化活化分子氧发生醇氧化反应的高活性物种。

关键词(KeyWords)： 二氧化锰;钾;苯甲醇;苯甲醛;分子氧;液相氧化

Abstract:

Keywords:

基金项目(Foundation): 河南省高校科技创新人才支持计划项目(2010HASTIT028);; 河南省教育厅科学技术研究重点项目(14A150043)

作者(Author): 汤清虎,王京,黄晓娜,赵卉茹,魏志伟,赵培正

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