Please use this identifier to cite or link to this item:
|Title:||Electrochemical double-layer capacitance of MoS2 nanowall films|
|Citation:||Soon, J.M., Loh, K.P. (2007). Electrochemical double-layer capacitance of MoS2 nanowall films. Electrochemical and Solid-State Letters 10 (11) : 250-254. ScholarBank@NUS Repository. https://doi.org/10.1149/1.2778851|
|Abstract:||Edge-oriented MoS2 films synthesized by single source precursor chemical vapor deposition exhibit a high density of nanowalls, which can potentially exhibit excellent electrochemical charge storage properties. The electrochemical double-layer capacitance of layered, nanowalled MoS2 film has been investigated in this work using electrochemical impedance spectroscopy. We show that edge-oriented MoS2 thin films can behave as a supercapacitor at alternating current frequencies up to 100 Hz. The supercapacitor performance is comparable to that of carbon nanotube array electrodes. In addition to double-layer capacitance, diffusion of the ions into the films at slow scan rates gives rise to faradaic capacitance, which enhances the capacitance significantly. The real and imaginary part of the capacitance of the MoS2 films was analyzed as a function of frequency, in order to obtain information on the relaxation time constant and frequency dependence of the supercapacitor properties. © 2007 The Electrochemical Society.|
|Source Title:||Electrochemical and Solid-State Letters|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Sep 13, 2018
WEB OF SCIENCETM
checked on Sep 5, 2018
checked on Aug 17, 2018
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.