1. State Key Laboratory of Coal Conversion, Institute of Coal Chemistry of Chinese Academy of Sciences, Taiyuan 030001, China; 2. University of Chinese Academy of Sciences, Beijing 100049, China
Abstract: Both the catalytic oxidation of CO and the development of catalysts for oxidation of CO at low temperature are very significant for basic research and industrial applications.Pt/CeO2 catalysts that are prepared via atomic layer deposition method can efficiently drop the temperature at which CO can be oxidized.The catalytic performance of Pt/CeO2 can be improved effectively by tuning the cycles of Pt ALD and pretreatment conditions.Especially,the temperature for oxidation of CO can be as low as 60℃ after the catalysts are pretreated in a hydrogen atmosphere.The catalysts are characterized by XRD,ICP,TEM,XPS and H2-TPR.It is found that Pt has been highly dispersed on the surface of CeO2 nanorods,and there are strong interactions between Pt and CeO2.After pretreated by hydrogen,the adsorption of CO by Pt can be enhanced,which can improve its catalytic performance for oxidation of CO.
孟甜甜, 赵世超, 陈朝秋, 梁浩杰, 覃勇. 原子层沉积制备Pt/CeO2催化剂及其低温CO氧化性能的研究[J]. 现代化工, 2020, 40(10): 184-187,192.
MENG Tian-tian, ZHAO Shi-chao, CHEN Chao-qiu, LIANG Hao-jie, QIN Yong. Preparation of Pt/CeO2 catalyst via atomic layer deposition and its application in oxidation of CO at low temperature. Modern Chemical Industry, 2020, 40(10): 184-187,192.
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