High-permittivity Solvents Increase MXene Stability and Stacking Order Enabling Ultraefficient Terahertz Shielding

Xiaodan Hong; Zhenyu Xu; Zhong Peng Lv; Zhen Lin; Mohsen Ahmadi; Linfan Cui; Ville Liljeström; Volodymyr Dudko; Jiali Sheng; Xiaoqi Cui; Alexey P. Tsapenko; Josef Breu; Zhipei Sun; Qiang Zhang; Esko Kauppinen; Bo Peng; Olli Ikkala

doi:10.1002/advs.202305099

High-permittivity Solvents Increase MXene Stability and Stacking Order Enabling Ultraefficient Terahertz Shielding

Xiaodan Hong, Zhenyu Xu, Zhong Peng Lv^*, Zhen Lin, Mohsen Ahmadi, Linfan Cui, Ville Liljeström, Volodymyr Dudko, Jiali Sheng, Xiaoqi Cui, Alexey P. Tsapenko, Josef Breu, Zhipei Sun, Qiang Zhang, Esko Kauppinen, Bo Peng^*, Olli Ikkala^*

^*Corresponding author for this work

Bavarian Polymer Institute

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

8 Citations (Scopus)

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Abstract

2D transition metal carbides and nitrides (MXenes) suggest an uncommonly broad combination of important functionalities amongst 2D materials. Nevertheless, MXene suffers from facile oxidation and colloidal instability upon conventional water-based processing, thus limiting applicability. By experiments and theory, It is suggested that for stability and dispersibility, it is critical to select uncommonly high permittivity solvents such as N-methylformamide (NMF) and formamide (FA) (ε_r = 171, 109), unlike the classical solvents characterized by high dipole moment and polarity index. They also allow high MXene stacking order within thin films on carbon nanotube (CNT) substrates, showing very high Terahertz (THz) shielding effectiveness (SE) of 40–60 dB at 0.3–1.6 THz in spite of the film thinness < 2 µm. The stacking order and mesoscopic porosity turn relevant for THz-shielding as characterized by small-angle X-ray scattering (SAXS). The mechanistic understanding of stability and structural order allows guidance for generic MXene applications, in particular in telecommunication, and more generally processing of 2D materials.

Original language	English
Article number	2305099
Journal	Advanced Science
Volume	11
Issue number	5
Early online date	2023
DOIs	https://doi.org/10.1002/advs.202305099
Publication status	Published - 2 Feb 2024
MoE publication type	A1 Journal article-refereed

Keywords

Janus film
MXene
permittivity
stability
terahertz shielding
X-ray scattering

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10.1002/advs.202305099Licence: CC BY

SCI_Hong_etal_Advanced ScienceFinal published version, 20.1 MBLicence: CC BY

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Hong, X., Xu, Z., Lv, Z. P., Lin, Z., Ahmadi, M., Cui, L., Liljeström, V., Dudko, V., Sheng, J., Cui, X., Tsapenko, A. P., Breu, J., Sun, Z., Zhang, Q., Kauppinen, E., Peng, B., & Ikkala, O. (2024). High-permittivity Solvents Increase MXene Stability and Stacking Order Enabling Ultraefficient Terahertz Shielding. Advanced Science, 11(5), Article 2305099. https://doi.org/10.1002/advs.202305099

@article{195508a81cc6415e9d6a38a3b3a9e8a4,

title = "High-permittivity Solvents Increase MXene Stability and Stacking Order Enabling Ultraefficient Terahertz Shielding",

abstract = "2D transition metal carbides and nitrides (MXenes) suggest an uncommonly broad combination of important functionalities amongst 2D materials. Nevertheless, MXene suffers from facile oxidation and colloidal instability upon conventional water-based processing, thus limiting applicability. By experiments and theory, It is suggested that for stability and dispersibility, it is critical to select uncommonly high permittivity solvents such as N-methylformamide (NMF) and formamide (FA) (εr = 171, 109), unlike the classical solvents characterized by high dipole moment and polarity index. They also allow high MXene stacking order within thin films on carbon nanotube (CNT) substrates, showing very high Terahertz (THz) shielding effectiveness (SE) of 40–60 dB at 0.3–1.6 THz in spite of the film thinness < 2 µm. The stacking order and mesoscopic porosity turn relevant for THz-shielding as characterized by small-angle X-ray scattering (SAXS). The mechanistic understanding of stability and structural order allows guidance for generic MXene applications, in particular in telecommunication, and more generally processing of 2D materials.",

keywords = "Janus film, MXene, permittivity, stability, terahertz shielding, X-ray scattering",

author = "Xiaodan Hong and Zhenyu Xu and Lv, {Zhong Peng} and Zhen Lin and Mohsen Ahmadi and Linfan Cui and Ville Liljestr{\"o}m and Volodymyr Dudko and Jiali Sheng and Xiaoqi Cui and Tsapenko, {Alexey P.} and Josef Breu and Zhipei Sun and Qiang Zhang and Esko Kauppinen and Bo Peng and Olli Ikkala",

note = "Funding Information: O.I. acknowledges support by the research European Research Council Advanced Grant DRIVEN (No. 742829) and Academy of Finland Center of Excellence Program in Life‐inspired Hybrid Materials, LIBER (No. 346108). Z.‐P.L. acknowledges support from Academy of Finland (No. 330214). B.P. acknowledges support by the Academy of Finland (No. 321443 and 328942). Z.L. acknowledges support from the China Scholarship Council (No. 201906310141). Z.X. acknowledges support from the China Scholarship Council (No. 202008440534). J.S. acknowledges support from the China Scholarship Council (No. 202008440311). A.P.Ts. acknowledges the Magnus Ehrnrooth Foundation (the Finnish Society of Sciences and Letters) for personal financial support. The authors acknowledge Jani Sainio and Meinander Kristoffer for XPS measurement, Lide Yao for preparation of cross‐sectional sample film cut by FIB, and Hua Jiang for assistance in transmission electron microscopy characterizations, respectively, and the facilities and technical support provided by Aalto University OtaNano‐Nanomicroscopy Center, Bioeconomy and Raw Matters Research Infrastructures. The authors also thank Jin Zhang for the valuable discussion on THz measurement. | openaire: EC/H2020/742829/EU//DRIVEN ",

year = "2024",

month = feb,

day = "2",

doi = "10.1002/advs.202305099",

language = "English",

volume = "11",

journal = "Advanced Science",

issn = "2198-3844",

publisher = "Wiley",

number = "5",

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Hong, X , Xu, Z , Lv, ZP , Lin, Z , Ahmadi, M, Cui, L, Liljeström, V, Dudko, V, Sheng, J , Cui, X, Tsapenko, AP, Breu, J, Sun, Z, Zhang, Q, Kauppinen, E , Peng, B & Ikkala, O 2024, 'High-permittivity Solvents Increase MXene Stability and Stacking Order Enabling Ultraefficient Terahertz Shielding', Advanced Science, vol. 11, no. 5, 2305099. https://doi.org/10.1002/advs.202305099

TY - JOUR

T1 - High-permittivity Solvents Increase MXene Stability and Stacking Order Enabling Ultraefficient Terahertz Shielding

AU - Hong, Xiaodan

AU - Xu, Zhenyu

AU - Lv, Zhong Peng

AU - Lin, Zhen

AU - Ahmadi, Mohsen

AU - Cui, Linfan

AU - Liljeström, Ville

AU - Dudko, Volodymyr

AU - Sheng, Jiali

AU - Cui, Xiaoqi

AU - Tsapenko, Alexey P.

AU - Breu, Josef

AU - Sun, Zhipei

AU - Zhang, Qiang

AU - Kauppinen, Esko

AU - Peng, Bo

AU - Ikkala, Olli

N1 - Funding Information: O.I. acknowledges support by the research European Research Council Advanced Grant DRIVEN (No. 742829) and Academy of Finland Center of Excellence Program in Life‐inspired Hybrid Materials, LIBER (No. 346108). Z.‐P.L. acknowledges support from Academy of Finland (No. 330214). B.P. acknowledges support by the Academy of Finland (No. 321443 and 328942). Z.L. acknowledges support from the China Scholarship Council (No. 201906310141). Z.X. acknowledges support from the China Scholarship Council (No. 202008440534). J.S. acknowledges support from the China Scholarship Council (No. 202008440311). A.P.Ts. acknowledges the Magnus Ehrnrooth Foundation (the Finnish Society of Sciences and Letters) for personal financial support. The authors acknowledge Jani Sainio and Meinander Kristoffer for XPS measurement, Lide Yao for preparation of cross‐sectional sample film cut by FIB, and Hua Jiang for assistance in transmission electron microscopy characterizations, respectively, and the facilities and technical support provided by Aalto University OtaNano‐Nanomicroscopy Center, Bioeconomy and Raw Matters Research Infrastructures. The authors also thank Jin Zhang for the valuable discussion on THz measurement. | openaire: EC/H2020/742829/EU//DRIVEN

PY - 2024/2/2

Y1 - 2024/2/2

N2 - 2D transition metal carbides and nitrides (MXenes) suggest an uncommonly broad combination of important functionalities amongst 2D materials. Nevertheless, MXene suffers from facile oxidation and colloidal instability upon conventional water-based processing, thus limiting applicability. By experiments and theory, It is suggested that for stability and dispersibility, it is critical to select uncommonly high permittivity solvents such as N-methylformamide (NMF) and formamide (FA) (εr = 171, 109), unlike the classical solvents characterized by high dipole moment and polarity index. They also allow high MXene stacking order within thin films on carbon nanotube (CNT) substrates, showing very high Terahertz (THz) shielding effectiveness (SE) of 40–60 dB at 0.3–1.6 THz in spite of the film thinness < 2 µm. The stacking order and mesoscopic porosity turn relevant for THz-shielding as characterized by small-angle X-ray scattering (SAXS). The mechanistic understanding of stability and structural order allows guidance for generic MXene applications, in particular in telecommunication, and more generally processing of 2D materials.

AB - 2D transition metal carbides and nitrides (MXenes) suggest an uncommonly broad combination of important functionalities amongst 2D materials. Nevertheless, MXene suffers from facile oxidation and colloidal instability upon conventional water-based processing, thus limiting applicability. By experiments and theory, It is suggested that for stability and dispersibility, it is critical to select uncommonly high permittivity solvents such as N-methylformamide (NMF) and formamide (FA) (εr = 171, 109), unlike the classical solvents characterized by high dipole moment and polarity index. They also allow high MXene stacking order within thin films on carbon nanotube (CNT) substrates, showing very high Terahertz (THz) shielding effectiveness (SE) of 40–60 dB at 0.3–1.6 THz in spite of the film thinness < 2 µm. The stacking order and mesoscopic porosity turn relevant for THz-shielding as characterized by small-angle X-ray scattering (SAXS). The mechanistic understanding of stability and structural order allows guidance for generic MXene applications, in particular in telecommunication, and more generally processing of 2D materials.

KW - Janus film

KW - MXene

KW - permittivity

KW - stability

KW - terahertz shielding

KW - X-ray scattering

UR - http://www.scopus.com/inward/record.url?scp=85178425269&partnerID=8YFLogxK

U2 - 10.1002/advs.202305099

DO - 10.1002/advs.202305099

M3 - Article

AN - SCOPUS:85178425269

SN - 2198-3844

VL - 11

JO - Advanced Science

JF - Advanced Science

IS - 5

M1 - 2305099

ER -

High-permittivity Solvents Increase MXene Stability and Stacking Order Enabling Ultraefficient Terahertz Shielding

Abstract

Keywords

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-: LIBER/Ikkala

post doc LYU: Plasmonics of two-dimensional transitional metal nitrides

Design and self-assembly of anisotropic particles for advanced colloidal structures and materials

OtaNano

OtaNano - Nanofab

OtaNano - Nanomicroscopy Center

Cite this

High-permittivity Solvents Increase MXene Stability and Stacking Order Enabling Ultraefficient Terahertz Shielding

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Projects

-: LIBER/Ikkala

post doc LYU: Plasmonics of two-dimensional transitional metal nitrides

Design and self-assembly of anisotropic particles for advanced colloidal structures and materials

Equipment

OtaNano

OtaNano - Nanofab

OtaNano - Nanomicroscopy Center

Cite this