期刊
CATALYSIS TODAY
卷 302, 期 -, 页码 277-285出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.cattod.2017.05.052
关键词
In-situ drifts; Transesterification; Hydrotalcite; Mixed oxides
资金
- Colciencias [111556933557]
- Universidad de Antioquia through Programa Sostenibilidad
Mixed oxides derived from hydrotalcites by thermal decomposition are promising catalysts for transesterification reactions. To gain insight into its action mechanism, methanol O-H bond activation was analyzed over Mg-Al mixed oxides using in-situ DRIFT spectroscopy to follow adsorbed species. After methanol adsorption, non-dissociative and dissociative species were identified. Dissociative adsorption resulted in two types of methoxy groups, type I or monodentate methoxy species and type II or bridging methoxy species. Catalytic tests of methanolysis of triacetin have shown a trend where, the higher the amount of adsorbed monodentate methoxy species the higher the catalytic activity of transesterification reaction.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据