Lee, Gang San Yun, Taeyeong Kim, Hyerim Kim, In Ho Choi, Jungwoo Lee, Sun Hwa Lee, Ho Jin Hwang, Ho Seong Kim, Jin Goo Kim, Dae-Won Lee, Hyuck Mo Koo, Chong Min Kim, Sang Ouk 2024-01-19T16:33:12Z 2024-01-19T16:33:12Z 2021-09-02 2020-09-22 1936-0851 https://pubs.kist.re.kr/handle/201004/118105 Two-dimensional (2D) MXene has shown enormous potential in scientific fields, including energy storage and electromagnetic interference (EMI) shielding. Unfortunately, MXene-based material structures generally suffer from mechanical fragility and vulnerability to oxidation. Herein, mussel-inspired dopamine successfully addresses those weaknesses by improving interflake interaction and ordering in MXene assembled films. Dopamine undergoes in situ polymerization and binding at MXene flake surfaces by spontaneous interfacial charge transfer, yielding an ultrathin adhesive layer. Resultant nanocomposites with highly aligned tight layer structures achieve approximately seven times enhanced tensile strength with a simultaneous increase of elongation. Ambient stability of MXene films is also greatly improved by the effective screening of oxygen and moisture. Interestingly, angstrom thick polydopamine further promotes the innate high electrical conductivity and excellent EMI shielding properties of MXene films. This synergistic concurrent enhancement of physical properties proposes MXene/polydopamine hybrids as a general platform for MXene based reliable applications. English AMER CHEMICAL SOC SURFACE POLYDOPAMINE TRANSFORMATION NANORIBBONS CHEMISTRY DOPAMINE GRAPHENE Mussel Inspired Highly Aligned Ti3C2Tx MXene Film with Synergistic Enhancement of Mechanical Strength and Ambient Stability Article 10.1021/acsnano.0c04411 1 ACS NANO, v.14, no.9, pp.11722 - 11732 ACS NANO 14 9 11722 11732 scie scopus 000576958900060 2-s2.0-85091553455 Chemistry, Multidisciplinary Chemistry, Physical Nanoscience & Nanotechnology Materials Science, Multidisciplinary Chemistry Science & Technology - Other Topics Materials Science Article SURFACE POLYDOPAMINE TRANSFORMATION NANORIBBONS CHEMISTRY DOPAMINE GRAPHENE dopamine MXene electromagnetic interference shielding interface assembly