Redox-active polymers as organic electrode materials for sustainable supercapacitors. (September 2021)

• Record Type: Journal Article
• Authors: Zhang, Xiaofang; Xiao, Zongying; Liu, Xufei; Mei, Peng; Yang, Yingkui
• Is Part Of: Renewable & sustainable energy reviews. Volume 147(2021)
• Publication Date: 2021-09
• Subjects: Electrochemical energy storage -- Supercapacitor -- Organic electrodes -- Redox polymers -- Diverse active centers -- Controllable molecular structures; index: SC Supercapacitor -- CNTs Carbon nanotubes -- AC Activated carbon -- EDLCs Electrical double-layer capacitors -- PANI Polyaniline -- PPy Polypyrrole -- PTh Polythiophene -- COFs Covalent organic frameworks -- CMPs Conjugated microporous polymers -- CNFs Carbon nanofibers -- GO Graphene oxide -- rGO Reduced graphene oxide -- CSs Carbon spheres -- CPs Carbon particles -- 0D Zero-dimensional -- 1D One-dimensional -- 2D Two-dimensional -- 3D Three-dimensional -- SMSC Shape memory supercapacitor -- DBS Dodecyl benzene sulfonate -- PVA Polyvinyl alcohol -- PEDOT Poly(3, 4-ethylenedioxythiophene) -- PSS Poly (styrene sulfonic acid) -- PAz Polyazulene -- ClO4− Perchlorate -- BF4− Tetrafluoroborate -- PF6− Hexafluorophosphate -- BPh4- Tetra(phenyl)borate -- [Choline][TFSI] Bis(trifluoromethylsulfonyl)imide -- POAP Poly(ortho-aminophenol) -- FGO Functionalized GO -- ILs Ionic liquids -- FWCNTs Functionalized few-walled carbon nanotubes -- PCz Polycarbazole -- PMCz Polymethylcarbazole -- PNVCz Poly(N-vinyl carbazole) -- PPD Poly(phenylenediamine) -- PpPD Poly(para-phenylenediamine) -- PoPD Poly (ortho-phenylenediamine) -- PmPD Poly(meta-phenylenediamine) -- SDS Sodium dodecyl sulfate -- PAQS Poly(anthraquinonyl Sulfide) -- Pd Palladium -- PDAAQ Poly(1, 5-diaminoanthraquinone) -- aMWCNT Acid-treated multi-walled carbon nanotube -- TFP 1, 3, 5-triformylphloroglucinol -- TpOMe 2, 4, 6-trimethoxy-1, 3, 5-benzenetricarbaldehyde -- DAQ 2, 6-diaminoanthraquinone -- TPT-DAHQ Triazine- and benzobisoxazole-based COF -- TPT-3CHO 2, 4, 6-tris(4-formylphenyl)triazine -- DAHQ-2HCl 2, 5-diaminohydroquinone dihydrochloride -- PDI Perylene diimide -- OHP Hydroxylended hyperbranched polymer -- BH Buchwalb-Hartwig -- RESC Redox electrolyte-assisted supercapacitor -- PTMA Poly (2, 2, 6, 6-tetramethyl-1-piperinidyloxy-4-yl methacrylate); Renewable energy sources -- Periodicals; Power resources -- Periodicals; Énergies renouvelables -- Périodiques; Ressources énergétiques -- Périodiques; 333.794
• DOI: 10.1016/j.rser.2021.111247
• Languages: English
• ISSNs: 1364-0321

Abstract

Abstract: Redox polymers in light of electrochemical activity, mechanical flexibility, molecular diversity, good processability, and low cost, in sharp contrast to conventional inorganic materials like carbons or metal oxides, are promising electrode candidates for fabricating affordable, sustainable, and high-performance supercapacitors. Representative conducting polymers thus far have made great progress in the field of electrochemical energy storage, but their capacitive performance in particular lifespan still fall short of demand, resulted from their volume expansion and shrinkage during charge/discharge process. Concurrently, other types of electrochemically-active polymers with diverse molecular structures and redox centers, have been extensively explored and designed for efficient energy harvesting and storage. This article gives a broad overview of recent advancements of those emerging redox polymers as well as conventional conducting polymers in supercapacitor application including synthetic strategy, structure manipulation, and electrochemical behavior, to shed light on the future direction of further optimization and extension for advanced organic supercapacitor technologies. Highlights: Redox polymers with diverse active centers applied to supercapacitors are reviewed. Different active centers responsible for different redox mechanisms are analyzed. Strategies for improving the capacitive properties of redox polymers are summarized. The superiority of redox polymers for flexible supercapacitors are highlighted. Redox polymers facilitate the development of organic supercapacitor technologies.