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Isothermic adsorption of morin onto the reducible mesoporous manganese oxide materials surface
Applied Catalysis B: Environment and Energy ( IF 22.1 ) Pub Date : 2017-11-15 , DOI: 10.1016/j.apcatb.2017.11.032
Ali K. Ilunga , Itumeleng R. Legodi , Simbongile Gumbi , Reinout Meijboom

A series of mesoporous manganese oxide materials were synthesized following the inverse micelle sol-gel method and categorized by the heat treatment. The tunable features and crystallinity of the mesoporous materials were analyzed by BET and XRD analyses. The HR-TEM and TRP analyses were conducted to analyze the meso-ordered structure and reducibility of the mesoporous manganese oxide materials. The catalytic activity of the mesoporous materials was investigated in aerobic oxidation of morin as a model reaction. The experimental data were interpreted according to the Mars-van Krevelen and Langmuir-Hinshelwood approach. The heat treatment influenced the crystallite size and the activity of the mesoporous manganese oxide materials. The activity of the lattice oxygen was a critical factor in the aerobic process. MnO2–350 °C exhibited the largest lattice oxygen activity ((64.3 ± 5.6) × kJ mol−1 m−2).



中文翻译:

等温吸附Morin到可还原的介孔氧化锰材料表面

按照反胶束溶胶-凝胶法合成了一系列介孔锰氧化物材料,并通过热处理对其进行了分类。通过BET和XRD分析分析了介孔材料的可调谐特性和结晶度。进行了HR-TEM和TRP分析,以分析介孔锰氧化物材料的介观结构和可还原性。以莫林的有氧氧化为模型反应,研究了介孔材料的催化活性。根据Mars-van Krevelen和Langmuir-Hinshelwood方法解释了实验数据。热处理影响了中孔氧化锰材料的微晶尺寸和活性。晶格氧的活性是好氧过程中的关键因素。的MnO 2–350°C表现出最大的晶格氧活度((64.3±5.6)×kJ mol -1  m -2)。

更新日期:2017-11-15
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