期刊
ACS MATERIALS LETTERS
卷 2, 期 7, 页码 699-704出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsmaterialslett.9b00527
关键词
-
资金
- Department of Atomic Energy (DAE), Government of India
- EPSRC [EP/L022524/1]
- University of Nottingham
The use of metal-organic frameworks (MOFs) in the field of catalysis is growing exponentially due to their high surface area and distinctive active sites. In this work, we report a novel understanding of the active sites responsible for the catalytic activity of aluminum trimesate MOFs and their crystal/framework structure dependency. Here, we have studied the nature of the active sites of Al-MOFs with two different framework structures (MIL-100 and MIL-96). We found that the MOFs with MIL-100 framework structures were highly catalytically active, while the same Al-MOFs with MIL-96 framework structures exhibited poor catalytic activity. This behavior is explained based on the effect of coordinated water molecules on their Bronsted acidity as well as the effect of the coordination of Al sites, specifically hexacoordinated Al-6c(3+) sites and pentacoordinated Al-6c(3+), sites, on their Lewis acidity. The different entrance sizes of the catalytic pocket of MIL-96 and MIL-100 also played critical roles in their catalytic performance.
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