Lignin as a bioderived modular surfactant and intercalant for Ti3C2Tx MXene stabilization and tunable functions

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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

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en

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Cell Reports Physical Science, Volume 5, issue 11

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Controlled tailoring of atomically thin MXene interlayer spacings by surfactant/intercalants (e.g., polymers, ligands, small molecules) is important to maximize their potential for application. However, challenges persist in achieving precise spacing tunability in a well-defined stacking, combining long-term stability and dispersibility in various solvents. Here, we discovered that lignin can be used as surfactants/intercalants of Ti3C2Tx MXenes. The resulting MXene@lignin complexes exhibit superior colloidal stability and oxidation resistance in both water and different organic solvents. More important, we reveal a dynamic interaction between MXene and lignin that enables a wide-range fine interlayer distance tuning at a sub-nanometer scale. Such dynamic interaction is sparse in the reported organic surfactants/intercalants containing single types of functional groups. We also demonstrate the tunability of electrical conductivity, infrared emissivity, and electromagnetic interference shielding effectiveness. Our approach offers a starting point to explore the potential of MXene-biomacromolecule composites for electronics and photonics applications.

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| openaire: EC/HE/101106454/EU//QuMeta | openaire: EC/H2020/742829/EU//DRIVEN

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Jiang, P, Hong, X, Zhang, J, Sheng, J, Kang, J, Ikkala, O, Chu, F, Peng, B, Han, Y & Lv, Z P 2024, 'Lignin as a bioderived modular surfactant and intercalant for Ti 3 C 2 T x MXene stabilization and tunable functions', Cell Reports Physical Science, vol. 5, no. 11, 102259. https://doi.org/10.1016/j.xcrp.2024.102259