| KOH修饰Au/Al2O3催化剂的低温CO氧化催化反应性能 |
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| 引用本文： | 苏慧娟.KOH修饰Au/Al2O3催化剂的低温CO氧化催化反应性能[J].分子催化,2011,25(1):43-48. |
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| 作者姓名： | 苏慧娟 |
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| 作者单位： | 烟台大学应用催化研究所;山东省黄金工程技术研究中心黄金工业应用研发部; |
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| 基金项目： | 国家自然科学基金(20973147); 山东省自然科学基金(Y2008B57)资助项目 |
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| 摘 要： | 采用等体积浸渍法制备了KOH-Au/Al<,2>O<,3>系列催化剂,考察了催化剂对低温CO氧化反应的初始活性和干、湿气氛下连续反应的稳定性能,并用电感耦合等离子发射光谱、红外光谱、高分辨透射电镜、紫外漫反射光谱等技术对催化剂进行了结构表征.结果表明:与母体催化剂(Au/Al<,2>O<,3>)相比,修饰催化剂(KOH...
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| 关 键 词： | Au/Al2O3催化剂 KOH CO氧化反应 稳定性 |
| 收稿时间： | 2010/12/29 0:00:00 |
| 修稿时间： | 2011/1/25 0:00:00 |
Low temperature CO oxidation over KOH-modified Au/Al2O3 catalysts |
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| SU Hui-juan,XU You-bing,XU Xiu-feng,AN Li-dun,QI Cai-xia.Low temperature CO oxidation over KOH-modified Au/Al2O3 catalysts[J].Journal of Molecular Catalysis (China),2011,25(1):43-48. |
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| Authors: | SU Hui-juan XU You-bing XU Xiu-feng AN Li-dun QI Cai-xia |
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| Institution: | SU Hui-juan,XU You-bing,XU Xiu-feng,AN Li-dun,QI Cai-xia(Institute of Applied Catalysis,Yantai University,Shandong Applied Research Center for Gold Technology(Au-SDARC),Yantai 264005,China) |
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| Abstract: | A series of KOH-Au/Al2O3 catalysts were prepared by the incipient wetness impregnation method.The catalysts were characterized by ICP-AES,FTIR,HRTEM,and UV-vis techniques.Their catalytic activity and on-line stability for CO oxidation in dry and wet feed at low temperatures were investigated.The results show that the addition of KOH enhanced the stability at the expense of the catalytic activity,and it is attributled to the pre-formation of carbonate-like species on the catalyst surface from CO2 in air. |
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| Keywords: | Au catalyst KOH CO oxidation stability |
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