MXene and MoS3−x Coated 3D-Printed Hybrid Electrode for Solid-State Asymmetric Supercapacitor

Kalyan Ghosh; Martin Pumera

doi:10.1002/smtd.202100451

MXene and MoS₃₋_x Coated 3D-Printed Hybrid Electrode for Solid-State Asymmetric Supercapacitor

Kalyan Ghosh, Martin Pumera

Department of Chemical and Biomolecular Engineering

Research output: Contribution to journal › Article › peer-review

39 Citations (Scopus)

Abstract

Recently, 2D nanomaterials such as transition metal carbides or nitrides (MXenes) and transition metal dichalcogenides (TMDs) have attracted ample attention in the field of energy storage devices specifically in supercapacitors (SCs) because of their high metallic conductivity, wide interlayer spacing, large surface area, and 2D layered structures. However, the low potential window (ΔV ≈ 0.6 V) of MXene e.g., Ti₃C₂T_x limits the energy density of the SCs. Herein, asymmetric supercapacitors (ASCs) are fabricated by assembling the exfoliated Ti₃C₂T_x (Ex-Ti₃C₂T_x) as the negative electrode and transition metal chalcogenide (MoS₃₋_x) coated 3D-printed nanocarbon framework (MoS₃₋_x@3DnCF) as the positive electrode utilizing polyvinyl alcohol (PVA)/H₂SO₄ gel electrolyte, which provides a wide ΔV of 1.6 V. The Ex-Ti₃C₂T_x possesses wrinkled sheets which prevent the restacking of Ti₃C₂T_x 2D layers. The MoS₃₋_x@3DnCF holds a porous structure and offers diffusion-controlled intercalated pseudocapacitance that enhances the overall capacitance. The 3D printing allows a facile fabrication of customized shaped MoS₃₋_x@3DnCF electrodes. Employing the advantages of the 3D-printing facilities, two different ASCs, such as sandwich- and interdigitated-configurations are fabricated. The customized ASCs provide excellent capacitive performance. Such ASCs combining the MXene and electroactive 3D-printed nanocarbon framework can be used as potential energy storage devices in modern electronics.

Original language	English
Article number	2100451
Journal	Small Methods
Volume	5
Issue number	8
DOIs	https://doi.org/10.1002/smtd.202100451
Publication status	Published - 2021 Aug 12

Bibliographical note

Funding Information:
M.P. acknowledges the funding sources from Grant Agency of the Czech Republic (GACR EXPRO: 19‐26896X) and K.G. acknowledges the funding from the European Union's Horizon 2020 research and innovation programme under the Marie Skłodowska‐Curie grant agreement No (894457—MotionESt). K.G. acknowledges the CEITEC Nano Research Infrastructure supported by MEYS CR (LM2018110) for providing spectroscopic and microscopic characterizations facilities. K.G. thanks Dr. Filip Novotný for carrying out the TEM measurement and Dr. Jayraj V. Vaghasiya for measuring the BET surface area and Dr. Siowwoon Ng for reviewing the manuscript.

Funding Information:
M.P. acknowledges the funding sources from Grant Agency of the Czech Republic (GACR EXPRO: 19-26896X) and K.G. acknowledges the funding from the European Union's Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement No (894457—MotionESt). K.G. acknowledges the CEITEC Nano Research Infrastructure supported by MEYS CR (LM2018110) for providing spectroscopic and microscopic characterizations facilities. K.G. thanks Dr. Filip Novotný for carrying out the TEM measurement and Dr. Jayraj V. Vaghasiya for measuring the BET surface area and Dr. Siowwoon Ng for reviewing the manuscript.

Publisher Copyright:
© 2021 Wiley-VCH GmbH

All Science Journal Classification (ASJC) codes

Chemistry(all)
Materials Science(all)

Access to Document

10.1002/smtd.202100451

Cite this

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title = "MXene and MoS3−x Coated 3D-Printed Hybrid Electrode for Solid-State Asymmetric Supercapacitor",

abstract = "Recently, 2D nanomaterials such as transition metal carbides or nitrides (MXenes) and transition metal dichalcogenides (TMDs) have attracted ample attention in the field of energy storage devices specifically in supercapacitors (SCs) because of their high metallic conductivity, wide interlayer spacing, large surface area, and 2D layered structures. However, the low potential window (ΔV ≈ 0.6 V) of MXene e.g., Ti3C2Tx limits the energy density of the SCs. Herein, asymmetric supercapacitors (ASCs) are fabricated by assembling the exfoliated Ti3C2Tx (Ex-Ti3C2Tx) as the negative electrode and transition metal chalcogenide (MoS3−x) coated 3D-printed nanocarbon framework (MoS3−x@3DnCF) as the positive electrode utilizing polyvinyl alcohol (PVA)/H2SO4 gel electrolyte, which provides a wide ΔV of 1.6 V. The Ex-Ti3C2Tx possesses wrinkled sheets which prevent the restacking of Ti3C2Tx 2D layers. The MoS3−x@3DnCF holds a porous structure and offers diffusion-controlled intercalated pseudocapacitance that enhances the overall capacitance. The 3D printing allows a facile fabrication of customized shaped MoS3−x@3DnCF electrodes. Employing the advantages of the 3D-printing facilities, two different ASCs, such as sandwich- and interdigitated-configurations are fabricated. The customized ASCs provide excellent capacitive performance. Such ASCs combining the MXene and electroactive 3D-printed nanocarbon framework can be used as potential energy storage devices in modern electronics.",

author = "Kalyan Ghosh and Martin Pumera",

note = "Funding Information: M.P. acknowledges the funding sources from Grant Agency of the Czech Republic (GACR EXPRO: 19‐26896X) and K.G. acknowledges the funding from the European Union's Horizon 2020 research and innovation programme under the Marie Sk{\l}odowska‐Curie grant agreement No (894457—MotionESt). K.G. acknowledges the CEITEC Nano Research Infrastructure supported by MEYS CR (LM2018110) for providing spectroscopic and microscopic characterizations facilities. K.G. thanks Dr. Filip Novotn{\'y} for carrying out the TEM measurement and Dr. Jayraj V. Vaghasiya for measuring the BET surface area and Dr. Siowwoon Ng for reviewing the manuscript. Funding Information: M.P. acknowledges the funding sources from Grant Agency of the Czech Republic (GACR EXPRO: 19-26896X) and K.G. acknowledges the funding from the European Union's Horizon 2020 research and innovation programme under the Marie Sk{\l}odowska-Curie grant agreement No (894457—MotionESt). K.G. acknowledges the CEITEC Nano Research Infrastructure supported by MEYS CR (LM2018110) for providing spectroscopic and microscopic characterizations facilities. K.G. thanks Dr. Filip Novotn{\'y} for carrying out the TEM measurement and Dr. Jayraj V. Vaghasiya for measuring the BET surface area and Dr. Siowwoon Ng for reviewing the manuscript. Publisher Copyright: {\textcopyright} 2021 Wiley-VCH GmbH",

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