Robust bioinspired MXene-based flexible films with excellent thermal conductivity and photothermal properties

NIR‐II Responsive Inorganic 2D Nanomaterials for Cancer Photothermal Therapy: Recent Advances and Future Challenges

“…In addition, the films exhibited excellent photothermal properties, the surface temperature of CNF/MXene@Ag film raised to 129.2 °C much higher than that of 60.8 °C and 75.3 °C for pure CNF film and CNF/MXene30 film after LED light irradiation for 30 s (Figure 11D). [ 255 ] These previous research verified that abound functional groups on the surface made hydrogen bonds and chemical bonds formation link 2D MXene and polymers, resulting in conduction network formation to promote heat transfer. Meanwhile, the polymer chain arrangement was disorganized after MXene crosslinking, causing thermal vibrations attenuation and phonons scattering reduction.…”

Synergistical thermal modulation function of 2D Ti3C2 MXene composite nanosheets via interfacial structure modification

“…Larger interfacial spacing is characterized by XRD, but the more prominent aspect ratio characteristics make CNFs exhibit a structural synergistic merit in MXene. Figures 4 E and 4F demonstrate randomly oriented networks interspersed between nanosheets, which induces the bridging effect ( Figure 7 ) that can enhance the mechanical properties of composite films ( Jiao et al., 2021a , 2021b ) and create a thermal transfer path between nanosheets ( Badakhsh et al., 2019 ; Che et al., 2017 , 2018 ). Moreover, the order of addition in the preparation (adding CNFs in dispersed MXene nanosheets) also reduces the phenomenon of CNFs agglomeration ( Xiao et al., 2016 ).…”

“…As a member of 2D materials, the superior in-plane thermal conductivity of ∼2.84 W/(m·K) for pure MXene is reported ( Chen et al., 2018 ). The composite of MXene with various materials can further improve its in-plane thermal conductivity dozens of times, but the out-of-plane thermal conductivity of these materials is below 0.50 W/(m·K) ( Gao et al., 2021 ; Jiao et al., 2021a , 2021b ), which greatly inhibits the design of MXene as nTIM. Moreover, the out-plane thermal transport characteristics of MXene have not yet been fully understood.…”

Emerging Flexible Thermally Conductive Films: Mechanism, Fabrication, Application

“…Figure 9 d shows the typical preparation process of MXene/NFC films via the vacuum filtration method. MXene/NFC films with an in-plane k of 22.43 W (mK) −1 [ 153 ], Mxene/BNNS/NFC films with an in-plane k of 19.91 W (mK) −1 [ 154 ], MXene/PVA films with an in-plane k of 4.57 W (mK) −1 [ 152 ] and GO/MXene films with an in-plane k of 26.49 W (mK) −1 [ 161 ] have been reported. However, the preparation of MXene involves harsh and toxic chemical etching routes and usually exhibits poor thermal stability and low intrinsic k, which greatly limited their industrial thermal management applications [ 162 , 163 ].…”