Improved electrochemical properties of polypyrrole with cucurbit[6]uril via supramolecular interactions

Abstract

A supramolecular polymer was developed through the encapsulation of polypyrrole by cucurbit[6]uril (PPy@Q[6]), which was employed as the electrode material to improve the capacitor ability of conductive polypyrrole. In the...

Recent Breakthroughs in Supercapacitors Boosted by Macrocycles

“…Jin et al [62] . studied the improved electrochemical properties of polypyrrole (PPy) with Q[6] via supramolecular interactions [62] .…”

“…Jin et al [62] studied the improved electrochemical properties of polypyrrole (PPy) with Q [6] via supramolecular interactions. [62] It is proved that Q [6] can increase the capacitance and electrochemical cycling performance of PPy. First, a host-guest complex (Py@Q [6]) was formed by the interaction of pyrrole (Py) with Q [6].…”

“…Designing the electrolyte structures to match the pore size of the graded porous carbon materials increases the material‘s capacitance significantly [22,23] . By the supramolecular interaction of the rigid cavity with conducting polymer, the macrocycle is used as the supporting reagent to substantially improve the conducting polymer‘s circulating property [62] . In addition, the supramolecular interactions between macrocycles and guests in electrolyte solutions accelerates charge transfer to improve electric double‐layer capacitance.…”

“…The delicate design of hierarchically porous structures and heteroatom dopants in carbon materials should effectively enhance the capacitance. Supramolecular polymers constructed by the encapsulation of conductive polymers (CPs) with macrocycles have been applied to improve the specific surface area and cycle stability of SCs (Figure 1c). [62,66] The supramolecular polymers are formed by polymerizing inclusion complexes of conductive monomers (pyrrole or aniline) within the cavities of a macrocyclic compound. By controlling the order growth during polymerization, conductive polymer accumulation is obstructed.…”

“…[22,23] By the supramolecular interaction of the rigid cavity with conducting polymer, the macrocycle is used as the supporting reagent to substantially improve the conducting polymer's circulating property. [62] In addition, the supramolecular interactions between macrocycles and guests in electrolyte solutions accelerates charge transfer to improve electric double-layer capacitance. Supramolecular gel electrolytes are achieved with non-covalent bonding macrocyclic compounds to induce strong elasticity and excellent repair ability.…”