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Layer-by-layer self-assembly of pillared two-dimensional multilayers
KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Fibre- and Polymer Technology.ORCID iD: 0000-0003-3497-2054
Auburn Univ, Dept Mech & Mat Engn, Auburn, AL 36849 USA..ORCID iD: 0000-0002-6284-7560
KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Fibre- and Polymer Technology.
KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Fibre- and Polymer Technology.
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2019 (English)In: Nature Communications, ISSN 2041-1723, E-ISSN 2041-1723, Vol. 10, article id 2558Article in journal (Refereed) Published
Abstract [en]

We report Layer-by-Layer (LbL) self-assembly of pillared two-dimensional (2D) multilayers, from water, onto a wide range of substrates. This LbL method uses a small molecule, tris(2-aminoethyl) amine (TAEA), and a colloidal dispersion of Ti3C2Tx MXene to LbL self-assemble (MXene/TAEA)(n )multilayers, where n denotes the number of bilayers. Assembly with TAEA results in highly ordered (MXene/TAEA)(n) multilayers where the TAEA expands the interlayer spacing of MXene flakes by only similar to 1 angstrom and reinforces the interconnection between them. The TAEA-pillared MXene multilayers show the highest electronic conductivity of 7.3 x10(4) S m(-1) compared with all reported MXene multilayers fabricated by LbL technique. The (MXene/ TAEA)(n) multilayers could be used as electrodes for flexible all-solid-state supercapacitors delivering a high volumetric capacitance of 583 F cm(-3) and high energy and power densities of 3.0 Wh L-1 and 4400 W L-1, respectively. This strategy enables large-scale fabrication of highly conductive pillared MXene multilayers, and potentially fabrication of other 2D heterostructures.

Place, publisher, year, edition, pages
Nature Publishing Group, 2019. Vol. 10, article id 2558
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Chemical Sciences
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URN: urn:nbn:se:kth:diva-254501DOI: 10.1038/s41467-019-10631-0ISI: 000470968500005PubMedID: 31186411OAI: oai:DiVA.org:kth-254501DiVA, id: diva2:1337506
Note

QC 20190715

Available from: 2019-07-15 Created: 2019-07-15 Last updated: 2019-07-15Bibliographically approved

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Tian, WeiqianVahid Mohammadi, ArminWang, ZhenOuyang, LiangqiHamedi, Mahiar M.
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