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Citation: YE Xiang-Guo, ZHANG Xiao-Gang, MI Hong-Yu, YANG Su-Dong. Hydrothermal Microemulsion Synthesis of Co₃O₄ with Different Morphologies and Their Electrochemical Capacitance[J]. Acta Physico-Chimica Sinica, ;2008, 24(06): 1105-1110. doi: 10.3866/PKU.WHXB20080634 shu

Hydrothermal Microemulsion Synthesis of Co₃O₄ with Different Morphologies and Their Electrochemical Capacitance

1.
Institute of Applied Chemistry, Xinjiang University, Urumqi 830046, P. R. China; College of Material Science &Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, P. R. China

Received Date: 12 December 2007
Available Online: 21 April 2008

Uniform dandelion-like, sisal-like and bindle-like architectures of compounds were successfully prepared in water/hexadecyltrimethyl ammonium bromide (CTAB)/hexane/n-pentanol quaternary microemulsion under hydrothermal conditions at 100 ℃, and morphologies of the three pyrolysis products at 300 ℃ were similar to those of their corresponding precursors. X-ray diffraction (XRD) and scanning electron microscopy (SEM) showed that as-synthesized Co3O4 possessed cubic spinel-type structure. The hydrothermal time played an important role in the morphologies of the materials. Electrochemical capacitance properties of the prepared Co3O4were investigated by means of cyclic voltammetry and galvanostatic charge/discharge measurements. When the hydrothermal time increased to 6 h, the obtained Co3O4 had the excellent electrochemical capacitance with the highest capacitance of 340 F·g-1.
- Hydrothermal-microemulsion; Cobalt oxide; Electrochemical capacitor
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沈阳化工大学材料科学与工程学院沈阳 110142

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Hydrothermal Microemulsion Synthesis of Co3O4 with Different Morphologies and Their Electrochemical Capacitance

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通讯作者: 陈斌, bchen63@163.com

Hydrothermal Microemulsion Synthesis of Co₃O₄ with Different Morphologies and Their Electrochemical Capacitance