Controlled synthesis of double-shelled CeO2 hollow spheres and enzyme-free electrochemical bio-sensing properties for uric acid
文献类型：期刊论文
| 作者 | Han, Lijun1; Liu, Rongji1,3; Li, Chunshan1; Li, Honghua1; Li, Cuixia1,3; Zhang, Guangjin1; Yao, Jiannian2 |
| 刊名 | JOURNAL OF MATERIALS CHEMISTRY
 |
| 出版日期 | 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 |
| WOS记录号 | WOS:000306972900055 |
| 出版者 | ROYAL SOC CHEMISTRY |
| 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. |
入库方式： OAI收割
来源：化学研究所
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