期刊
RSC ADVANCES
卷 5, 期 100, 页码 82296-82309出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5ra15675k
关键词
-
资金
- Spanish Ministry of Science and Innovation (MICINN)
- European Regional Development Fund (FEDER) [MAT2007-66439-C02]
- Public University of Navarra through a PhD fellowship
The effect that the metal content of various pillared-clay-supported catalysts may have on the oxidation of propene was studied in this work. For this purpose, an alumina pillared montmorillonite (Al-PILC) was used as a support for palladium and platinum. The catalysts, with metal loadings of between 0 and 2 wt%, were characterized by chemical analysis, nitrogen physisorption at -196 degrees C, carbon dioxide physisorption at 0 degrees C, X-ray photoelectron spectroscopy (XPS), X-ray powder diffraction (XRD), CO and H-2 chemisorption at 35 degrees C, NH3 chemisorption at 70 degrees C and temperature-programmed reduction (TPR). Bulk PdO, Pd, and palladium-alumina structures were detected for the palladium catalysts. Likewise, bulk PtO2 and small PtO2 particles, which partially interact with the support, were observed for the Pt/Al-PILC catalysts. The results obtained suggest that the propene oxidation over Pd/Al-PILC and Pt/Al-PILC is a structure sensitive reaction as the turnover frequencies are affected by metal dispersion and the structure of the surface catalysts.
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