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每周分享12.7

閱讀:644      發(fā)布時間:2015-12-7
分享:

每周分享:In2O3 Nanoparticles on Three-Dimensionally Ordered Macroporous (3DOM) Carbon for Pseudocapacitor Electrodes

今天給大家分享的是20159月份《Electrochimica Acta》上發(fā)表的一篇名為:In2O3 Nanoparticles on Three-Dimensionally Ordered Macroporous (3DOM) Carbon for Pseudocapacitor Electrodes

文章摘要如下:

We present a facile sol-gel approach for the fabrication of In2O3/3DOM carbon nanocomposites for pseudocapacitor applications. By this facile chemical method, uniform In2O3 nanoparticles can be vertically grown on the surface of 3DOM carbon. The structure and morphology of the material is characterized by X-ray diffraction, nitrogen gas sorption, scanning electron microscope, and transmission electron microscope techniques. Cyclic voltammetry (CV), galvanostatic charge-discharge and electrochemical impedance spectroscopy (EIS) are used to investigate the electrochemical performance of electrodes. An In2O3/3DOM carbon electrode with 10 wt.% shows a high specific capacitance of 287 F g−1, while the capacitance of In2O3 electrode alone is 58 F g−1. Furthermore, an In2O3/3DOM carbon nanocomposite pseudocapacitor shows a stable cycle life in the potential range of 0–0.5 V and retains 86% of its initial capacitance over 5000 cycles. The high specific capacitance and excellent cycle life are due to the three-dimensionally ordered pore structure of the carbon, which favors the diffusion of the electrolyte ions and provides a conductive scaffold.

該文章中材料表征采用的是美國麥克儀器ASAP 2460

詳情可參考下面鏈接:

http://www.sciencedirect。。com/science/article/pii/S0013468615301481

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