摘要
通过水热晶化法制备了核壳结构SiO2@CeO2载体,通过浸渍沉淀法负载铜获得CuO-SiO2@CeO2催化剂。考查其催化氧化CO性能,采用TEM、SEM、XRD、H2-TPR对催化剂进行了表征。结果表明,结晶的CeO2有利于CO氧化。1%CuO-CeO2@SiO2催化剂表面铜物种更分散,体现出最好的CO氧化能力,其T90低至135℃。
The core-shell structure SiO2@CeO2 carrier was prepared by hydrothermal crystallization method. CuOSiO2@CeO2 catalyst was obtained with the copper loaded by impregnation precipitation method. The catalytic performance for CO oxidation was investigated. The catalyst was characterized by TEM, SEM, XRD and H2-TPR. The results show that crystalline CeO2 is beneficial to the oxidation of CO. The copper species are more dispersed on the surface of 1% CuO-CeO2@SiO2 catalyst, which shows the best CO oxidation ability. Its T90 is as low as 135℃.
作者
徐洁书
陶艳琪
吴炳智
王琪
XU Jie-shu;TAO Yan-qi;WU Bing-zhi;WANG Qi(Tongling Nonferrous Tongguan Metallurgy-Chemical Industry Subcompany,Tongling 244000,China;School of Chemistry and Chemical Engineering,Hefei University of Technology,Hefei 230009,China)
出处
《安徽化工》
CAS
2021年第1期43-45,48,共4页
Anhui Chemical Industry
关键词
铜
铈
二氧化硅
催化剂
一氧化碳
氧化
copper
cerium
silica
catalyst
carbon monoxide
oxidation
作者简介
徐洁书(1970-),男,高级工程师,研究方向:工业烟气污染物处理,1210006862@qq.com。
