Computer Simulation for Prediction Capacitance of Electrical Double layer capacitor
Date Issued
2007
Date
2007
Author(s)
Ko, Huang-Chu
DOI
zh-TW
Abstract
Since Iijima[1] successfully fabricated carbon nanotube (CNT) from graphitic carbon sheets in 1990, all kinds of physical, chemical and mechanical properties are being studied and analyzed[2]. Recently, a new model of electrochemical storage device was introduced. Based on the ordinary electrolytic capacitor, the CNT were bed on the original electrode plate. The so-called supercapacitor[3, 4] (SC) has more than thousand times of capacitance than commercial ones[5]. The enhancement in capacitance was recognized by two major effects: the increase of surface on the electrode and the capture of ionic species by the CNT. In order to gain a molecular level understanding of each of these effects, we have established the micro structure of SC and performed molecular dynamic simulation (MD) for such systems. At the same time, we could study the phenomena in electrical double layer and solvent.
Subjects
分子動態模擬
介電常數
電容率
Molecular Dynamic Simulation
dielectric constant
capacitance
Type
thesis
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