Three-dimensional structures of graphene/polyaniline hybrid films constructed by steamed water for high-performance supercapacitors

Electrochemical Performance of Manganese Coordinated Polyaniline

“…The electrodes and membranes were overlapped and packaged by ultra-thin plastic film. Obviously, the maximum energy density of PANI-Mn supercapacitor is 51.38 Wh kg −1 at the power density of 850 W kg −1 , presenting a higher energy density and power density compared to analogous PANI supercapacitors, such as NPCNFs//NPCNFs (NPCNF means nitrogen-doped porous carbon nanofibers, 9.2 Wh kg −1 at 0.25 kW kg −1 ), [50] rGO/PANI (28.06 Wh kg −1 at 0.25 kW kg −1 ), [51] MnO 2 /HGNF// PANI/HGNF (HGNF means hybrid graphene/Ni 3D scaffolds, 41.0 W h kg −1 at 787.3 W kg −1 ), [52] MnO 2 @PANI// MnO 2 @PANI (37 Wh kg −1 at 386 W kg −1 ), [19] SPAN/FC// SPAN/FC (SPAN means self-doped polyaniline, 9.2 Wh kg −1 at 1000 W kg −1 ), [53] BNC/CNT/ion gel (BNC means bacterial Slight polarization is observed when the voltage range expands from 1.5 to 1.8 V. The PANI-Mn supercapacitor is investigated at the voltage window of 1.7 V. Figure 8C,D shows CV curve at different scanning rates and GCD curve at different current densities.…”

Comparative study of CO2 and H2O activation in the synthesis of carbon electrode for supercapacitors

“…3b, which shows almost spherical shapes. Figure 3d shows the morphology of a porous labyrinth-maze spread on the surface, in which the pore on AC/H 2 O/3 has a unique long flat shape [11]. The pores were produced through CO 2 gas activation has a small circular shape and appears close to each other.…”

Dahlia‐liked Carbon Nanohorns Decorated Graphene/Polyaniline Nanocomposite and Its Derived Nitrogen‐doped Carbon for High‐performance Supercapacitor

“…The decrease in O atomic ratio in CGP5 indicated the decrease of hydroxyls and carboxyls, proving the successful reduction of GO . At the C 1s core‐level XPS spectrum of CGP5 (Figure (b)), four peaks at 284.5, 285.1, 287.2, and 288.0 eV, can be assigned to C‐C/C=C, C‐N, C‐O, and O=C‐O/C=O bonds, respectively . For the N 1s spectrum (Figure (c)), three individual peaks at binding energies of 398.4, 399.9 and 400.8 eV represented quinonoid amine (=N‐), benzenoid amine (‐NH‐) and protonated benzenoid amine (‐NH + ‐), confirming the form of good conductivity PANI halfoxidized emeraldine salt .…”

“…After testing (Figure (b)), a window of 1.5 V is obtained without polarization, and the CV curves of ASC are quasirectangular in shape at various scan rates (Figure (c)). The GCD curves of ASC (Figure (d)) were approximatively linear and symmetrical at different current densities with a small IR drop, indicating a high rate performance and good capacitive ,. For the CGP5//C–CGP5 ASC device,both the resistances of internal equivalent series (R S ) and charge transfer (R ct ) were low (less than 1 Ω) (Figure (e)), denoting the good conductivity and ion/electrons transfer efficiency .…”