Qin Yu, Shen Fangxia, Zhu Tianle, Hong Wei, Liu Xiaolong
School of Space and Environment, Beihang University Beijing 100191 China.
Beijing Engineering Research Center of Process Pollution Control, National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Institute of Process Engineering, Chinese Academy of Sciences Beijing 100190 China
RSC Adv. 2018 Sep 27;8(58):33425-33431. doi: 10.1039/c8ra06933f. eCollection 2018 Sep 24.
A series of silver catalysts supported on lanthanum based perovskites LaBO (B = Co, Mn, Ni, Fe) were synthesized and evaluated in the catalytic oxidation of ethyl acetate. XRD, BET, TEM/HRTEM, HAADF-STEM, XPS and H-TPR were conducted, and the results indicate that redox activity of the catalysts is of great importance to the oxidation reaction. Activity tests demonstrated that Ag/LaCoO was more active than the other samples in ethyl acetate oxidation. Moreover, the CO selectivity, CO yields and byproduct distributions for all catalysts were studied, and Ag/LaCoO showed the best catalytic performance. Besides, Ag/LaCoO also showed excellent catalytic activity for other OVOCs.
合成了一系列负载在镧基钙钛矿LaBO（B = Co、Mn、Ni、Fe）上的银催化剂，并对其在乙酸乙酯催化氧化中的性能进行了评估。进行了XRD、BET、TEM/HRTEM、HAADF-STEM、XPS和H-TPR表征，结果表明催化剂的氧化还原活性对氧化反应至关重要。活性测试表明，Ag/LaCoO在乙酸乙酯氧化中比其他样品更具活性。此外，研究了所有催化剂的CO选择性、CO产率和副产物分布，Ag/LaCoO表现出最佳的催化性能。此外，Ag/LaCoO对其他挥发性有机化合物（OVOCs）也表现出优异的催化活性。
