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- Title
Densification of MXene films by sequential bridging.
- Authors
Cheng, Hui-Ming
- Abstract
In a landmark study recently published in I Science i [[5]] by Prof. Qunfeng Cheng's group from Beihang University, the three-dimensional (3D) void microstructure of titanium carbide MXene films was systematically characterized using focused ion beam/scanning electron microscopy tomography (FIB/SEMT) and nanoscale X-ray computed tomography (nano-CT), as shown in Fig. Because of this densified microstructure, and improved interlayer interactions, the SBM films have a much higher tensile strength, Young's modulus and toughness than the unbridged MXene films (Fig. A hydrogen bonding agent (sodium carboxymethyl cellulose) fills and closes large-scale voids between MXene platelets, and a covalent bonding agent (borate ions) bridges adjacent MXene platelets bringing them closer and eliminating small-scale voids.
- Subjects
SODIUM carboxymethyl cellulose; COMPUTED tomography; ELECTROMAGNETIC interference
- Publication
National Science Review, 2022, Vol 9, Issue 1, p1
- ISSN
2095-5138
- Publication type
Article
- DOI
10.1093/nsr/nwab195