Kim Ki-Joong, Chang Chih-Hung, Ahn Ho-Geun
J Nanosci Nanotechnol. 2015 Jan;15(1):60-4.
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.
采用碳酸氢铵沉积沉淀法制备了负载在氧化铝（Au/Al₂O₃）和氧化锌/氧化铝（Au/ZnO/Al₂O₃）上的金催化剂，并通过氮气吸附、X射线衍射、透射电子显微镜、X射线光电子能谱和程序升温还原对其进行了表征。详细讨论了在Al₂O₃表面添加ZnO对负载型金催化剂一氧化碳氧化催化活性的影响。向Au/Al₂O₃中添加4 wt%的ZnO负载量显示出更高程度的金颗粒分散，这使得Au/ZnO/Al₂O₃催化剂比Au/Al₂O₃催化剂具有更高的催化活性。
