01886nas a2200181   4500008004100000245011400041210006900155260000800224300001200232490000600244520122000250653002901470653003201499653001601531100001301547700002301560856012101583       2017                        eng d00aLarge anion incorporation to improve the performance of large, paper based conducting polymer supercapacitors0 aLarge anion incorporation to improve the performance of large pa  cSEP  a112-1170 v53 a<p>Poly(3,4-ethylenedioxythiophene) (PEDOT) is a stable conducting polymer, hence its dispersion is widely used in commercial devices. However, PEDOT's charge storage properties are not impressive. Thus, improvement in charge storage properties of PEDOT will render the possibility of fabricating stable energy storage devices such as supercapacitors. A fundamentally different approach is required to achieve this objective. We envisioned that the charge storage property of PEDOT can be improved by trapping large anions. These ions would facilitate better ion transport into the PEDOT matrix from the electrolyte and increase the efficiency of supercapacitors. Furthermore, a large anion such as triiodide is relatively immobile in the polymer matrix, hence we hypothesize the ions to be trapped in the polymer. To test this hypothesis, triiodide trapped PEDOT based supercapacitors are fabricated on paper substrates. A 1 cm2 triiodide incorporated PEDOT based supercapacitor exhibited a specific capacitance of 486 F/g. On the other hand, PEDOT without triiodide incorporation exhibited a specific capacitance of 221 F/g. Indeed, a device with an area of 32 cm2 exhibited a specific capacitance of 476 F/g.</p>10aFlexible Supercapacitors10aPaper based Supercapacitors10apolyphenols1 aJain, B.1 aKrishnamoorthy, K.  uhttp://library.ncl.res.in/content/large-anion-incorporation-improve-performance-large-paper-based-conducting-polymer01817nas a2200217   4500008004100000022001400041245007900055210006900134260000800203300001200211490000600223520109400229653002501323653002701348653002901375653001501404653002901419100001801448700002401466856010901490       2020                        eng d  a2194-428800aPorphyrin-based conducting polymer hydrogel for supercapacitor application0 aPorphyrinbased conducting polymer hydrogel for supercapacitor ap  cJUN  a20000610 v83 a<p>Herein, the electrochemical properties and energy storage capability of a flexible, all-solid-state supercapacitor based on the supramolecular assembly of polypyrrole (PPy) and the anion of 5,10,15,20-tetrakis(4-sulfonatophenyl)-21H,23H-porphine manganese(III) chloride (MnTSPP) are reported. The electrode material consists of a conductive polymer hydrogel formed through the gelation initiated by cross-linking of the dopant MnTSPP anion in the PPy chains. The morphology of the cross-linked polymer hydrogel is that of a particle-decorated nanofiber, which can perform as a flexible supercapacitor electrode material with a specific capacitance of 300 Fg(-1) and capacitance retention of 78% up to 10 000 cycles. The anion of MnTSPP plays a pivotal role in enhancing the charge storage capability by facilitating the electron transfer between the polymer interchains. In addition, the steric hindrance due to the large size of the dopant counter ions of MnTSPP reduces the counterion drain effect and structural pulverization of PPy, thereby improving the capacitive retention.</p>
10aconductive hydrogels10aenergy storage devices10aFlexible Supercapacitors10ananofibers10aporphyrin-based polymers1 aDas, Debasree1 aKurungot, Sreekumar  uhttp://library.ncl.res.in/content/porphyrin-based-conducting-polymer-hydrogel-supercapacitor-application