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Sequentially Bridged Ti 3 C 2 T x MXene Sheets for High Performance Applications
Author(s) -
Usman Ken Aldren S.,
Zhang Jizhen,
Hegh Dylan Y.,
Rashed Ahmed O.,
Jiang Degang,
Lynch Peter A.,
MotaSantiago Pablo,
Jarvis Karyn L.,
Qin Si,
Prime Emma L.,
Naebe Minoo,
Henderson Luke C.,
Razal Joselito M.
Publication year - 2021
Publication title -
advanced materials interfaces
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.671
H-Index - 65
ISSN - 2196-7350
DOI - 10.1002/admi.202002043
Subject(s) - materials science , bridging (networking) , capacitance , fabrication , conductivity , nanotechnology , energy storage , electronics , composite material , electromagnetic shielding , optoelectronics , toughness , supercapacitor , electrode , medicine , computer network , chemistry , alternative medicine , pathology , computer science , power (physics) , physics , quantum mechanics
The outstanding electrical conductivity and high specific capacitance of 2D Ti 3 C 2 T x MXene have made them promising materials for a wide range of applications including wearable electronics, energy storage, sensors, and electromagnetic interference shielding. However, the fabrication of MXene architectures, both pure and composite, often results in a trade‐off in properties. Here, it is reported that sequential bridging of MXene sheets significantly enhances the mechanical properties of its free‐standing films, with improvements in strength and toughness of up to ≈ 339 MPa and ≈ 12.0 MJ m −3 , respectively, while simultaneously retaining both high conductivity ( ≈ 4850 S cm −1 ) and volumetric capacitance ( ≈ 1220 F cm −3 ). This sequential bridging strategy permits surface modification of MXene sheets while still yielding stable colloidal dispersions so that the subsequent MXene films comprise of aligned, evenly‐spaced, and interconnected sheets, which are critical for the development of robust energy storage devices and other high performance applications.