Electrodeposition of polypyrrole–carbon nanotube composites for electrochemical supercapacitors

Capacitive characteristics of nanocomposites of conducting polypyrrole and functionalized carbon nanotubes: pulse current synthesis and tailoring

“…Figure 5a presents the CV curves of the three kinds of PCD PPy-TOS/FSWNTs and GCD PPy-TOS/FSWNTs at a scanning rate of 200 mV s −1 . The response current is divided by the corresponding scanning rate and the mass (about 1 mg, which is comparable to the reported value [32]) so that their capacitance performance can be easily compared. All the CV curves were very close to rectangle.…”

“…A rational approach to fulfill the task is to prepare nanostructured PPy electrode by synthesizing PPy/carbon nanotube (CNT) nanocomposites where CNTs play the role of one-dimension template [15][16][17][18]. The nanostructure can shorten the diffusion path of ions and ensure sufficient surface area and good accessibility for the electrolyte so as to improve the specific capacitance and fast charging/discharging ability [19,20].…”

Influence of chemical structure of dyes on capacitive dye removal from solutions

“…The goal of our investigation was the development of CDR method for the removal of dyes, which belong to triphenylmethane and chromotropic acid families. Such dyes are widely used for the spectrophotometric determination of metal ions and various organic species [50,51], development of chelating resins for ion exchange applications [52,53], photovoltaic [54] and energy storage [55,56] devices and sensors [57]. The experimental results presented below indicated that CDR method can be used for the removal of various dyes from triphenylmethane and chromotropic acid families from aqueous solutions.…”

Electroconducting materials based on polypyrrole

“…Great electronic conductivity, very high surface area, excellent chemical and mechanical stability make CNTs suitable in a compensation of disadvantages of conducting polymers synthesized for supercapacitor applications [109][110][111][112][113]. Very high specific capacitance and good high-rate capability of electrode material has been achieved by synthesis of PPy/CNT composite with controlled pore size in a three-dimensional entangled structure of a CNT film using an electrostatic spray deposition process [112].…”