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

doi:10.1039/c2jm32804f

CORC > 化学研究所 > 中国科学院化学研究所

	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
ISSN号	0959-9428
DOI	10.1039/c2jm32804f
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.
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000306972900055
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/48253]
专题	中国科学院化学研究所
通讯作者	Zhang, Guangjin
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.