TY - JOUR

T1 - Electrochemical deposition of PEDOT/MoS2 composite films for supercapacitors

AU - Волков, Алексей Игоревич

AU - Иванов, Александр Владимирович

AU - Верещагин, Анатолий Андреевич

AU - Новоселова, Юлия Витальевна

AU - Толстопятова, Елена Геннадьевна

AU - Кондратьев, Вениамин Владимирович

N1 - Publisher Copyright: © 2022 Elsevier B.V.

PY - 2022/4

Y1 - 2022/4

N2 - Composite materials based on conducting polymers and transitional metal chalcogenides have attracted considerable attention as electrode materials for supercapacitors. Molybdenum disulfide is a layered transitional metal dichalcogenide extensively researched in energy storage and conversion applications, and poly(3,4-ethylenedioxythiophene) (PEDOT) is an intrinsically conducting polymer that can act as a conductive matrix. We propose a single-step electrochemical deposition of PEDOT/MoS 2 composite materials from the dispersion containing commercially available MoS 2 platelets and EDOT monomer. Potentiodynamic, galvanostatic, and potentiostatic modes are all suitable for synthesis of the materials with predominant content of MoS 2, which is attached to the current collector via conducting PEDOT matrix. The materials can work in various water-based electrolytes and combine capacitor-like and redox pseudocapacitive response. The composites deposited on graphite foil in assembled asymmetric cells with Kynol carbon cloth counter-electrode deliver up to 870 mF cm −2 areal capacitance in LiClO 4 aqueous solution at a current density of 1 mA cm −2 due to combined capacitive input of both components.

AB - Composite materials based on conducting polymers and transitional metal chalcogenides have attracted considerable attention as electrode materials for supercapacitors. Molybdenum disulfide is a layered transitional metal dichalcogenide extensively researched in energy storage and conversion applications, and poly(3,4-ethylenedioxythiophene) (PEDOT) is an intrinsically conducting polymer that can act as a conductive matrix. We propose a single-step electrochemical deposition of PEDOT/MoS 2 composite materials from the dispersion containing commercially available MoS 2 platelets and EDOT monomer. Potentiodynamic, galvanostatic, and potentiostatic modes are all suitable for synthesis of the materials with predominant content of MoS 2, which is attached to the current collector via conducting PEDOT matrix. The materials can work in various water-based electrolytes and combine capacitor-like and redox pseudocapacitive response. The composites deposited on graphite foil in assembled asymmetric cells with Kynol carbon cloth counter-electrode deliver up to 870 mF cm −2 areal capacitance in LiClO 4 aqueous solution at a current density of 1 mA cm −2 due to combined capacitive input of both components.

KW - проводящие полимеры

KW - композитные материалы

KW - электродные материалы

KW - суперконденсаторы

KW - халькогениды переходных металлов

KW - Areal capacitance

KW - Composite film electrode

KW - Electrochemical synthesis

KW - Molybdenum disulfide

KW - PEDOT

KW - Supercapacitors

UR - http://www.scopus.com/inward/record.url?scp=85124314460&partnerID=8YFLogxK

UR - https://www.mendeley.com/catalogue/b0565bd3-6406-39ac-aff6-308de72f8f61/

U2 - 10.1016/j.synthmet.2022.117030

DO - 10.1016/j.synthmet.2022.117030

M3 - Article

VL - 285

JO - Synthetic Metals

JF - Synthetic Metals

SN - 0379-6779

M1 - 117030

ER -