标题:Template-free hydrothermal synthesis and CO oxidation properties of flower-like CeO2nanostructures
作者:Xie, Anran ;Liu, Wei ;Wang, Shuping ;Liu, Xiufang ;Zhang, Jingcai ;Yang, Yanzhao
作者机构:[Xie, Anran ;Liu, Wei ;Wang, Shuping ;Liu, Xiufang ;Zhang, Jingcai ;Yang, Yanzhao ] Key Laboratory for Special Functional Aggregate Materials of Educa 更多
通讯作者:Yang, Y
来源:Materials Research Bulletin
出版年:2014
卷:59
页码:18-24
DOI:10.1016/j.materresbull.2014.06.020
摘要:KClO3, a strong oxidant, was employed in the template-free hydrothermal synthesis of flower-like CeO2. The structure and physicochemical properties of the samples were characterized via the XRD, N2adsorption, FE-SEM, TEM, HRTEM, H2-TPR techniques. Through a series of experiments, the formation of flower-like CeO2is strongly dependent on reaction time. Meanwhile, the transformation of two phases (Ce(HCOO)3and CeO2) and a possible mechanism for the formation of flower-like CeO2were preliminarily proposed. The result shows that the H2consumption for surface reduction of the flower-like CeO2sample is significantly higher than the commercial CeO2sample and the BET surface area of the flower-like ceria nanoparticles is 38.8 m2/g, which are benificial to the catalytic reaction. Compared with the commercial CeO2, the as-prepared flower-like CeO2possesses the better catalytic performance for CO conversion. © 2014 Elsevier Ltd.
收录类别:EI
资源类型:期刊论文
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