A study on oxidized glassy carbon sheets for dipolar supercapacitor electrodes

机译：用于双极超级电容器电极的氧化玻璃碳片的研究

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Electrochemical Double Layer Capacitors (EDLC) for high energy and power density applications, based on glassy carbon (GC) electrodes, are being developed in our labroatory. In the context of this project, GC sheets were oxidized and investigated with Small Angle X-ray Scattering (SAXS), electrochemnical Impedance Spectroscopy (EIS) and Nitrogen Gas Adsorption (BET). During oxidation an active film with open pores is built on the surface of the GC. Upojn oxidation, the internal volumetric surface area of the active film decreases, whereas the volumetric electrochemical double layer capacitance increases. We show that this effect is correlated with the opening, the growth and the coalescence of the pores.

机译：我们实验室正在开发基于玻璃碳（GC）电极的高能量和功率密度应用的电化学双层电容器（EDLC）。在该项目中，GC薄板被氧化并通过小角X射线散射（SAXS），电化学阻抗谱（EIS）和氮气吸附（BET）进行了研究。在氧化过程中，GC表面会形成带有开孔的活性膜。向上氧化，活性膜的内部体积表面积减小，而电化学双层体积电容增大。我们表明，这种效应与孔的开放，生长和聚结有关。

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《Symposium on New Materials for Batteries and Fuel Cells held April 5-8,1999,San francisco,California,U.S.A.》|1999年|p.369-380|共12页
会议地点 San Francisco CA(US)
作者
A.Braun; M.Bartsch; F.Geiger; B.Schnyder; R.Kotz; O.Haas; M.Carlen; T.Christen; C.Ohler; P.Unternahrer; E.krause;
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A study on oxidized glassy carbon sheets for dipolar supercapacitor electrodes

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