CO低温氧化负载金催化剂研究进展

从合成方法、制备条件和金粒子尺寸、载体效应等方面介绍了影响负载型纳米Au催化剂催化活性的因素、可能的反应机理。评述了选择适当的合成方法可以有效地控制金粒子直径,并使其均匀分散于载体之上,从而得到更好的催化活性。适当的焙烧温度与载体类型也是获得高活性催化剂的必要条件。

Studies on low- temperature oxidation of CO by Au catalyst

The progress of research on CO low-temperature catalytic oxidation by Au catalyst is reviewed,and the effects of preparation method,the size of Au particle,support and preparation condition on the activity of Au catalytst are analyzed.The mechanism of catalytic oxidation is discussed.In general,the appropriate synthesis methods would be effective in controlling the catalyst particle diameter,and dispersing the catalyst on the carrier to achieve better catalytic activity.The appropriate calcination temperature and the appropriate type of carrier are also necessary for highly active catalyst.