Capacitance Properties and Durability of Various Single-Walled Carbon Nanotube Electrodes for Electric Double Layer Capacitor

Capacitor Properties of Pure Single-walled Carbon Nanotube Electrodes

Introduction Electric double layer capacitors (EDLCs) have excellent properties in power density and durability compared with secondary batteries. Recently, development of advanced capacitors with high energy density is active because the storage devices with high power density have huge market in the fields of hybrid vehicles, mobile instruments and so on. The singlewalled carbon nanotubes (SW...

Single walled carbon nanotube in the reaction layer of gas diffusion electrode for oxygen reduction reaction

In this paper, the effect of surface area of reaction layers in gas diffusion electrodes on oxygen reduction reaction was investigated. For this purpose, various amounts (0.1, 0.2, 0.3, 0.4, 0.5, 1, 1.5 and zero %wt of total loading of reaction layer) of single walled carbon nanotube (SWCNT) were inserted in the reaction layer. The performance of gas diffusion electrodes for oxygen reduction re...

Chemical detection with a single-walled carbon nanotube capacitor.

We show that the capacitance of single-walled carbon nanotubes (SWNTs) is highly sensitive to a broad class of chemical vapors and that this transduction mechanism can form the basis for a fast, low-power sorption-based chemical sensor. In the presence of a dilute chemical vapor, molecular adsorbates are polarized by the fringing electric fields radiating from the surface of a SWNT electrode, w...

Electrochemical Characterization of Single-Walled Carbon Nanotube Electrodes

Ion adsorption on the inner surface of single-walled carbon nanotubes used as electrodes for electric double-layer capacitors.

In the present study, ion adsorption on the outer and inner surfaces of single-walled carbon nanotubes (SWCNTs) in different aqueous and organic electrolytes was analysed. It was found that the fundamental properties of tube size and electronic structure, particularly the transition between van Hove singularities (the band gap), reflected by the shape of the cyclic voltammogram and increase in ...