Electrochemical Double-Layer Capacitors Using Carbon Nanotube Electrode Structures
نویسندگان
چکیده
منابع مشابه
Electrochemical characterization of carbon nanotubes as electrode in electrochemical double-layer capacitors
Carbon nanotubes uniformly 50 nm in diameter were directly grown on graphite foil. Cyclic voltammetry (CV) shows that the carbon nanotube /graphite foil electrode has a high specific capacitance (115.7 F/g at a scan rate of 100 mV/s) and exhibits typical double-layer behavior. A rectangular-shaped CV curve persists even at a scan rate of 100 mV/s in 1.0 M H SO aqueous solution, which suggests t...
متن کاملMesoporous carbon capsules as electrode materials in electrochemical double layer capacitors.
The performance of mesoporous carbon capsules as electrode materials in electrochemical double layer capacitors (EDLCs) was evaluated in the presence of a variety of electrolytes, including room temperature ionic liquids (ILs).
متن کاملLimits to the magnitude of capacitance in carbon nanotube array electrode based electrochemical capacitors
Nanostructured electrochemical capacitors (ECs) are advantageous for charge and energy storage due to their intrinsically large surface area, which contributes to a large electrostatic/double layer capacitor (Cdl). However, the intrinsically small density of states in nanostructures results in a quantum capacitor (CQ) in series with Cdl which could diminish the total device capacitance value (C...
متن کاملCarbon Nanotube Capacitors
Capacitors are important components in many integrated circuits. They serve numerous roles in analog and mixed signal circuits, including switched capacitor filters and sampleand-hold circuits. In addition, capacitors provide a vital role in the decoupling of microprocessors, digital signal processors, and microcontrollers from power supply variations. Traditional integrated circuit capacitors ...
متن کاملRedox-active electrolyte for carbon nanotube-based electric double layer capacitors
The specific capacitance of the MWCNTs was improved by the addition of an electrochemically active compound (Indigo carmine) to an electrolyte generally used in electric double layer capacitors. The pseudocapacitive contribution of the IC trebled the specific capacitance values of the MWCNTs at low current densities (from 17 Fg to 50 Fg). The good resistance obtained for the MWCNT-based capacit...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Proceedings of the IEEE
سال: 2009
ISSN: 0018-9219,1558-2256
DOI: 10.1109/jproc.2009.2030240