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Waste Tire Derived Carbon–Polymer Composite Paper as Pseudocapacitive Electrode with Long Cycle Life
Author(s) -
Boota M.,
Paranthaman M. Parans,
Naskar Amit K.,
Li Yunchao,
Akato Kokouvi,
Gogotsi Y.
Publication year - 2015
Publication title -
chemsuschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.412
H-Index - 157
eISSN - 1864-564X
pISSN - 1864-5631
DOI - 10.1002/cssc.201500866
Subject(s) - supercapacitor , materials science , polyaniline , capacitance , composite number , coating , carbon fibers , conductive polymer , electrode , chemical engineering , electrochemistry , polymer , porosity , energy storage , nanotechnology , composite material , polymerization , chemistry , power (physics) , physics , quantum mechanics , engineering
Recycling hazardous wastes to produce value‐added products is becoming essential for the sustainable progress of our society. Herein, highly porous carbon (1625 m 2 g −1 ) is synthesized using waste tires as the precursor and used as a supercapacitor electrode material. The narrow pore‐size distribution and high surface area led to good charge storage capacity, especially when used as a three‐dimensional nanoscaffold to polymerize polyaniline (PANI). The composite paper was highly flexible, conductive, and exhibited a capacitance of 480 F g −1 at 1 mV s −1 with excellent capacitance retention of up to 98 % after 10 000 charge/discharge cycles. The high capacitance and long cycle life were ascribed to the short diffusional paths, uniform PANI coating, and tight confinement of the PANI in the inner pores of the tire‐derived carbon through π–π interactions, which minimized the degradation of the PANI upon cycling. We anticipate that the same strategy can be applied to deposit other pseudocapacitive materials to achieve even higher electrochemical performance and longer cycle life—a key challenge for redox active polymers.