کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
49339 | 46740 | 2015 | 4 صفحه PDF | دانلود رایگان |
• Co2MgxAl-LDHs with different Mg2 + contents were introduced to the oxidation of benzyl alcohol.
• The basicity of the catalyst could contributes to the high selectivity of aldehyde in the reaction.
• Introducing Mg2 + ions can promote the oxidation process of Co2 + to Co3 +.
• The improved catalytic activities might be ascribed to the co-existence of Co2 + and Co3 +.
With the knowledge the significant effect of basic site on the catalytic performance of heterogeneous catalysts in the selective oxidation of alcohol, a series of Co2MgxAl-LDHs (x = 0, 0.5, 1.0, 1.5, and 2.0) compounds with different Mg2 + contents have been prepared, characterized and introduced into the selective oxidation of benzyl alcohol with TBHP as the oxidant. The results showed that introducing Mg2 + ions can not only influence the amount of basic site, but also promote the oxidation process of Co2 + to Co3 +. These facts must contribute to the markedly improved catalytic activities of Co2MgxAl-LDH samples.
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Journal: Catalysis Communications - Volume 69, 5 September 2015, Pages 1–4