期刊
JOURNAL OF MATERIALS SCIENCE
卷 49, 期 3, 页码 1170-1178出版社
SPRINGER
DOI: 10.1007/s10853-013-7797-4
关键词
-
资金
- National Natural Science Foundation of China [21376051, 21106017, 21306023, 51077013]
- Natural Science Foundation of Jiangsu [BK20131288]
- Fund Project for Transformation of Scientific and Technological Achievements of Jiangsu Province of China [BA2011086]
- Specialized Research Fund for the Doctoral Program of Higher Education of China [20100092120047]
- Key Program for the Scientific Research Guiding Found of Basic Scientific Research Operation Expenditure of Southeast University [3207043101]
- Instrumental Analysis Fund of Southeast University
Core-shell-structured SBA-15@MgAl2O4 (abbreviated as S@MA) was prepared by homogeneous precipitation through sol-gel method. The effects on the properties of S@MA as a supporting material have been investigated in comparison with MA and SBA-15. The results showed that the pore structure was changed, the acid sites were introduced, and the surface properties were improved by the construction of the core-shell-structured S@MA. Then, these materials were used as the carrier for the catalysts by impregnation method. Moreover, in PtSnNa/S@MA, these modifications not only decreased the size of surface Pt ensembles, but also changed the interfacial character between metal and support. In addition, compared to PtSnNa/MA, the capacity of the catalyst which supports on S@MA to accommodate coke was improved and the carbon deposit on PtSnNa/S@MA was migrated from the active metal to the carrier. These intriguing results are attributed to larger surface area and the appearance of the acid sites in S@MA.
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