About this Abstract |
| Meeting |
MS&T25: Materials Science & Technology
|
| Symposium
|
Controlled Synthesis, Processing, and Applications of Structural and Functional Nanomaterials
|
| Presentation Title |
Organic-Inorganic MXene Hybrid for High-Temperature Applications |
| Author(s) |
Krutarth Kamath, Aditi Akella, Nithin Chandran BS, Pratyush Chettri, Anupma Thakur, Brian Wyatt, Babak Anasori |
| On-Site Speaker (Planned) |
Krutarth Kamath |
| Abstract Scope |
The class of two-dimensional (2D) transition metal carbides, nitrides, and carbonitrides known as MXenes, has gained global attention for their promising applications in electromagnetic interference shielding, energy storage and conversion, environmental remediation, and sensing. Recently, MXenes have also shown potential for high-temperature applications, positioning them as promising candidates for next-generation nanoceramics. Notably, above 800 °C, Ti3C2Tx undergoes phase transformation into the isostructural bulk transition metal carbide TiCy - a well-known refractory material. This behavior indicates that MXenes serve as precursors for ultra-high-temperature ceramics (UHTCs) and possess broader potential beyond their role as mere building blocks of nanoceramics. The thermal desorption of surface terminations Tx at high temperatures distorts the core face-sharing Ti6C octahedra, leading to corner-sharing rock-salt TiCy. By introducing organic ligands to MXenes to restrict this distortion, we improve the thermal stability, enabling their use in extreme environments and bridging the gap between 2D materials and high-temperature ceramics. |