Controlled synthesis of double-shelled CeO2 hollow spheres and enzyme-free electrochemical bio-sensing properties for uric acid

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	Controlled synthesis of double-shelled CeO2 hollow spheres and enzyme-free electrochemical bio-sensing properties for uric acid
	Han, Lijun 1; Liu, Rongji 1,3; Li, Chunshan 1; Li, Honghua 1; Li, Cuixia 1,3; Zhang, Guangjin 1; Yao, Jiannian 2
刊名	JOURNAL OF MATERIALS CHEMISTRY
	2012
卷号	22 期号:33 页码:17079-17085
关键词	TEMPLATE-FREE SYNTHESIS CATALYTIC-PROPERTIES CERIA NANOSTRUCTURES NANOPARTICLES NANOSPHERES FABRICATION SYSTEMS ROUTE
ISSN号	0959-9428
通讯作者	Zhang, GJ
英文摘要	A simple solvothermal method has been used to synthesize novel double-shelled CeO2 hollow spheres (HSs) in a mixed solvent of PEG-400 and H2O. The structure and morphology of the CeO2 HSs were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and nitrogen adsorption-desorption isotherms. The SEM and TEM images indicated that the as-prepared double-shelled CeO2 (about 400-500 nm in diameter) were aggregates of nanoparticles with sizes of about 15 nm. The shape and composition of the as-obtained products could be controlled by adjusting the ratio of PEG-400 and H2O in the solvothermal process. The effects of PEG-400/H2O ratio, solvothermal temperature and reaction time on the morphology evolution of as-prepared products were investigated, and the possible formation mechanism was proposed based on nucleation and the Ostwald ripening process as well as the soft-template function of PEG-400. In addition, the double-shelled CeO2 HSs show high electrocatalytic activity towards uric acid (UA) oxidation and thus exhibit good biosensor activities toward the detection of trace amounts of UA.
WOS标题词	Science & Technology ; Physical Sciences ; Technology
类目[WOS]	Chemistry, Physical ; Materials Science, Multidisciplinary
研究领域[WOS]	Chemistry ; Materials Science
关键词[WOS]	TEMPLATE-FREE SYNTHESIS ; CATALYTIC-PROPERTIES ; CERIA ; NANOSTRUCTURES ; NANOPARTICLES ; NANOSPHERES ; FABRICATION ; SYSTEMS ; ROUTE
收录类别	SCI
语种	英语
WOS记录号	WOS:000306972900055
公开日期	2013-10-16
内容类型	期刊论文
版本	出版稿
源URL	[http://ir.ipe.ac.cn/handle/122111/3547]
专题	过程工程研究所_湿法冶金清洁生产技术国家工程实验室
作者单位	1.Chinese Acad Sci, Beijing Key Lab Ion Liquids Clean Proc, State Key Lab Multiphase Complex Syst, Key Lab Green Proc & Engn,Inst Proc Engn, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Inst Chem, Key Lab Photochem, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China 3.Chinese Acad Sci, Grad Univ, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Han, Lijun,Liu, Rongji,Li, Chunshan,et al. Controlled synthesis of double-shelled CeO2 hollow spheres and enzyme-free electrochemical bio-sensing properties for uric acid[J]. JOURNAL OF MATERIALS CHEMISTRY,2012,22(33):17079-17085.
APA	Han, Lijun.,Liu, Rongji.,Li, Chunshan.,Li, Honghua.,Li, Cuixia.,...&Yao, Jiannian.(2012).Controlled synthesis of double-shelled CeO2 hollow spheres and enzyme-free electrochemical bio-sensing properties for uric acid.JOURNAL OF MATERIALS CHEMISTRY,22(33),17079-17085.
MLA	Han, Lijun,et al."Controlled synthesis of double-shelled CeO2 hollow spheres and enzyme-free electrochemical bio-sensing properties for uric acid".JOURNAL OF MATERIALS CHEMISTRY 22.33(2012):17079-17085.