甲苯
催化作用
苯甲醛
苯甲酸
傅里叶变换红外光谱
锰
化学
催化燃烧
热解
兴奋剂
催化氧化
无机化学
材料科学
核化学
有机化学
化学工程
光电子学
工程类
作者
Lei Jia,Peng Wang,Shuang Wang,Jinping Li,Yongping Xu,Shuying Li
标识
DOI:10.1016/j.cjche.2021.11.027
摘要
The design of Co-Mn composite oxides catalysts derived from MOF is significant for catalytic combustion of toluene. Here, a series of M-CoaMnbOx, with enhanced catalytic properties compared with that of M-Co3O4, were successfully prepared through pyrolysis of Mn-doped Co-MOF. The as-synthesized M-Co1Mn1Ox (Co:Mn = 1:1) exhibits an optimal catalytic activity with 90% toluene conversion reached at 227 °C, which benefits from the increase of Co3+, Oads and the synergistic effect between Mn and Co. According to the analysis of the in situ diffuse reflectance infrared Fourier transform spectroscopy, toluene could be degraded easier on M-Co1Mn1Ox with lower activation energy than M-Co3O4. The main intermediate products are benzaldehyde, benzoic acid, anhydride, and maleate species. Those findings reveal the value of Mn doping for improved activity of toluene oxidation on MOF derived Co3O4, which provide a feasible method for the construction of toluene-oxidation catalysts.
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