Co3O4空心球的简易合成及其电化学性能(英文) |
Simple Fabrication and Electrochemical Properties of Co3O4 Hollow Spheres |
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摘要: 通过简易的水热法“一锅”制备了Co3O4空心球。借助X射线衍射仪(XRD)、扫描电子显微镜(SEM)、透射电子显微镜(TEM)和傅里叶变换红外光谱法(FTIR)等对Co3O4的结构和形貌进行了表征。结果表明,产物由Co3O4纳米粒子构成,并形成明显的空心多孔结构。循环伏安法(CV)测试表明,所制得的Co3O4空心球呈现良好的电化学性能。本文同时对Co3O4空心球结构的形成过程和可能的机理进行了分析和讨论。 |
关键词: 四氧化三钴(Co3O4) 空心球 水热法 电化学性能 |
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Abstract: Co3O4 hollow spheres were hydrothermally prepared at 180 ℃ by the one-pot method, followed by heating to 550 ℃ in air. The characteristics of these Co3O4 samples were investigated by X-ray diffraction, scanning electron microscopy, transmission electron microscopy and Fourier transform infrared spectroscopy. The results show that the as-synthesized Co3O4 hollow spheres have the porous wall which consists of nanosized particles. The cyclic voltammetry (CV) measurement shows that as-prepared Co3O4 hollow sphere exhibited a good pseudo-capacitance behavior. Moreover, this paper also proposes the possible formation mechanism of Co3O4 hollow spheres synthesized under the one-pot method. |
Keywords: Co3O4 hollow sphere hydrothermal electrochemical properties |
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易观贵,肖 勇,贺文启,赵 率,武拥建,刘应亮,袁定胜,黄浪欢,潭绍早.Co3O4空心球的简易合成及其电化学性能(英文)[J].无机化学学报,2011,27(1):162-166. |
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