共 50 条
The Effect of Zinc Oxide Addition to Alumina-Supported Gold Catalyst in Low Temperature Carbon Monoxide Oxidation
被引:7
|作者:
Kim, Ki-Joong
[1
,2
]
Chang, Chih-Hung
[1
]
Ahn, Ho-Geun
[2
]
机构:
[1] Oregon State Univ, Sch Chem Biol Environm Engn, Corvallis, OR 97331 USA
[2] Sunchon Natl Univ, Dept Chem Engn, Sunchon 540742, Jeonnam, South Korea
关键词:
Au/Al2O3;
ZnO Promoter;
CO Oxidation;
XRD;
TPR;
XPS;
CO OXIDATION;
AU/AL2O3;
D O I:
10.1166/jnn.2015.8336
中图分类号:
O6 [化学];
学科分类号:
0703 ;
摘要:
Gold catalysts supported on alumina (Au/Al2O3) and zinc oxide/Al2O3 (Au/ZnO/Al2O3) were prepared by deposition-precipitation with ammonium bicarbonate, and were characterized by nitrogen gas adsorption, X-ray diffraction, transmission electron microscopy, X-ray photoelectron spectroscopy, and temperature programmed reduction. The effect of ZnO addition to the surface of Al2O3 on the catalytic activity of Al2O3-supported gold catalysts in carbon monoxide oxidation is discussed in detail. The additions of 4 wt% ZnO loading to Au/Al2O3 showed a higher degree of gold particle dispersion which resulted in higher catalytic activity with Au/ZnO/Al2O3 catalyst than with Au/Al2O3 catalyst.
引用
收藏
页码:660 / 664
页数:5
相关论文