PEDOT:PSS wrapped NiFe2O4/rGO tertiary nanocomposite for the super-capacitor applications

Optimization of congo red removal by adsorption onto NiFe2O4/GO nanocomposite

“…Twenty experiments were performed by using central composite design (CCD) ( Table 1) at five levels including the low (encoded -1), high (encoded +1), and rotatable (encoded ± 1.68). fitted well with spinel structure of ferrites reported by a previous study [9]. Figure 1B showed that the saturation magnetization value was 2.38 emu/g, which was considered to be significantly lower than that of the previous report [8].…”

“…To enhance the surface properties by means of adding various functional groups, graphene oxide can be loaded to modify a rigid structure of NiFe 2 O 4 and form a nanocomposite NiFe 2 O 4 /GO [9]. These types of materials can, therefore, be easy to perform magnetic separation and recycling as they hold unique properties of facile synthesis, magnetic recoverability and stability.…”

Ultra high stable supercapacitance performance of conducting polymer coated MnO2nanorods/rGO nanocomposites

“…Also, PEDOT:PSS might have provided numerous active sites for efficient faradic redox reaction and, also, restricts the dissolution and aggregation of MnO 2 with the help of rGO, which possibly keeps the MnO 2 /rGO part well separated and provides more interfaces for the charge storage. 29,32,36,48 The obtained specic capacitance for the MGP nanocomposite has been compared with MnO 2 , rGO and conducting polymer based binary and tertiary nanocomposites reported in the literature, as shown in bar Chart 1. 15,16,20,[28][29][30][31][32][33]35 Fig.…”

“…It can be observed that the energy density decreased with an increase in the power density, which is in agreement with results reported in the literature. 36 Electrochemical impedance spectroscopy (EIS) was used to study the charge transfer and transport mechanism for MnO 2 , and the MG and MGP nanocomposites. Fig.…”

“…GO was synthesized by a modied Hummers' method and the procedure is explained elsewhere. 36 The MnO 2 /rGO nanocomposite was prepared by a hydrothermal method and the procedure used is as follows. The synthesized GO was dispersed in double distilled water with a concentration of 1 mg ml À1 and sonicated for an hour.…”