Hierarchically porous carbons derived from polyaniline by “nanotube seeding” for high-performance ionic liquid-based supercapacitors

Abstract

Hierarchically porous carbons derived from polyaniline by “nanotube seeding” for high-performance supercapacitors.

Performance of Partially Exfoliated Nitrogen‐Doped Carbon Nanotubes Wrapped with Hierarchical Porous Carbon in Electrolytes

“…[33,34] This improved electrochemical performance can be ascribed to 1) the high actives urface area and micro-meso PSD, which matches the size of the electrolyte ion andl eads to considerable specific capacitance enhancement;2 )the interaction of as ingle pair of electrons in the nitrogen atoms of N-PPECNT and imidazolium ring, which significantly increases the binding energy and charget ransmission from nitrogen to carbon atoms, thereby improving electrical conductivity andl eadingt ob etter performance;a nd 3) the hierarchical porous nature and high active surfacea rea of N-PPECNT-700 increases thes urface accessibility to ions and reduces the electrolyte ion diffusion length to the inner pore walls, thereby contributing to an enhanced electrochemical performance. [33,34] This improved electrochemical performance can be ascribed to 1) the high actives urface area and micro-meso PSD, which matches the size of the electrolyte ion andl eads to considerable specific capacitance enhancement;2 )the interaction of as ingle pair of electrons in the nitrogen atoms of N-PPECNT and imidazolium ring, which significantly increases the binding energy and charget ransmission from nitrogen to carbon atoms, thereby improving electrical conductivity andl eadingt ob etter performance;a nd 3) the hierarchical porous nature and high active surfacea rea of N-PPECNT-700 increases thes urface accessibility to ions and reduces the electrolyte ion diffusion length to the inner pore walls, thereby contributing to an enhanced electrochemical performance.…”

“…The obtained energy density of N-PPECNTi n[ BMIM][TFSI] is higher than the reported value for partially exfoliated MWCNT/ IL (103.2 Wh kg À1 ). [33,34] This improved electrochemical performance can be ascribed to 1) the high actives urface area and micro-meso PSD, which matches the size of the electrolyte ion andl eads to considerable specific capacitance enhancement;2 )the interaction of as ingle pair of electrons in the nitrogen atoms of N-PPECNT and imidazolium ring, which significantly increases the binding energy and charget ransmission from nitrogen to carbon atoms, thereby improving electrical conductivity andl eadingt ob etter performance;a nd 3) the hierarchical porous nature and high active surfacea rea of N-PPECNT-700 increases thes urface accessibility to ions and reduces the electrolyte ion diffusion length to the inner pore walls, thereby contributing to an enhanced electrochemical performance.…”

Applications of Pyrolytic Polyaniline for Renewable Energy Storage

“…The hierarchically porous carbons with nitrogen‐doping and ion‐accessible hierarchical porous structure were obtained after pyrolysis and activation with KOH. The product delivered high energy density of 134.32 W h kg −1 and good cyclic stability in an ionic liquid electrolyte . Kan et al .…”

Electropolymerization of aniline monomer and effects of synthesis conditions on the characteristics of synthesized polyaniline thin films

“…Future high-tech applications in the domain of chemical sensors have also been proposed [17][18][19] . Pani can be prepared by various techniques, namely electrodeposition 20,21 , template synthesis 22,23 , seeding 24 , and interfacial polymerization 25 . Electrochemical polymerization also called electropolymerization using for this study is a typical method generally used for the synthesis of Pani coating 26,27 .…”