标题:Room temperature interfacial reaction-directed synthesis of hierarchically porous ceria from a water-soluble precursor
作者:Chen, Guozhu;Xu, Qihui;Wang, Yong;Song, Guolong;Fan, Weiliu
作者机构:[Chen, G] School of Chemistry and Chemical Engineering, University of Jinan, No. 336 Nanxinzhuang west road, Jinan, China;[ Xu, Q] School of Chemistry 更多
通讯作者:Chen, Guozhu
通讯作者地址:[Chen, GZ]Univ Jinan, Sch Chem & Chem Engn, 336 Nanxinzhuang West Rd, Jinan, Peoples R China.
来源:Journal of Materials Chemistry, A. Materials for energy and sustainability
出版年:2015
卷:3
期:13
页码:7022-7028
DOI:10.1039/c5ta00664c
摘要:Unlike the conventional calcination of cerium precursors at elevated temperature, hierarchically porous ceria was successfully synthesized via an interfacial reaction between the water-soluble cerium sulfate (Ce-2(SO4)(3)) precursor and NaOH in ethanol at room temperature. Neither additional surfactant molecules nor calcination was employed during the whole preparation process. It was found that the as-prepared ceria inherited well the shape and dimensions of the hierarchically flowerlike Ce-2(SO4)(3) precursor after the interfacial reaction. The concentration of sulfuric acid was demonstrated to play a great role in controlling the precursor\'s morphology. Compared with ceria derived from direct calcination of the same Ce-2(SO4)(3) precursor, the one obtained from the interfacial reaction was far more reactive in CO oxidation due to its well-retained hierarchically porous morphology and high surface area. This work is expected to open a new, simple avenue for the synthesis of hollow nanomaterials from water-soluble precursors.
收录类别:EI;SCOPUS;SCIE
WOS核心被引频次:2
Scopus被引频次:2
资源类型:期刊论文
原文链接:https://www.scopus.com/inward/record.uri?eid=2-s2.0-84925047348&doi=10.1039%2fc5ta00664c&partnerID=40&md5=31cce7f7101290b1b63e7aa53c9f89c5
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