Enzymatic synthesis of polyaniline/multi-walled carbon nanotube composite with core shell structure and its electrochemical characterization for supercapacitor application

Facile route for multi-walled carbon nanotube coating with polyaniline: tubular morphology nanocomposites for supercapacitor applications

“…It seems that the coating of PANi takes place at the outer surface of the MWCNT. The In general, the complete and uniform coating of MWCNT with a CP has been reported by other investigators using other methods [8,11,13,16], which are in agreement with these present findings. It should be noted that the thickness of PANi layer on the MWCNT surface was increased with increasing of MWCNT content in nanocomposite.…”

“…The spectra of PANi displays the bands at about 1561 and 1463 cm -1 corresponding to C-C stretching of quinoid and benzenoid rings vibrations, respectively, which specifies the oxidation state of ES. As generally observed for pure PANi (ES), the benzenoid band at 1463 cm -1 is stronger peak as that of the quinoid band at 1561 cm -1 [12,16]. The strong characteristic band emerged at 1144 cm -1 was described by MacDiarmid as the ''electron-like band'' and is considered to be a measure of the delocalization of the electrons and, therefore, is revealing the conductivity of PANi [11,17].…”

Nitrogen, oxygen and phosphorus decorated porous carbons derived from shrimp shells for supercapacitors

“…The other is the pseudocapacitors with high energy density but poor power density and cycle stability, its capacity comes from faradaic reactions at the electrode/electrolyte surface [3][4][5][6][7]. The electrode materials are the key components determining their capacitance performance, and PCs are the most reported electrode materials owing to their large surface area, tunable pore structure and good electrical conductivity [8][9][10][11]. Many strategies have been carried for optimizing the energy density of capacitors while keeping a high power density for supercapacitors [12,13], and pseudocapacitance materials are important candidates in this respect.…”

Nitrogen-containing carbon microspheres for supercapacitor electrodes

“…According to different charge storage mechanisms, supercapacitors can be classified into two categories [3,5]: one is electric double-layer capacitors (EDLCs) which store electrical energy by electrostatic accumulation of charges at the electrode/solution interface, such as carbon materials [6]. The other is pseudo-capacitors which store the electrical energy by fast and redox reactions occurring at the electrode interface, such as metal oxides [7][8][9] and conducting polymers [10,11].…”