About this Abstract |
Meeting |
2025 TMS Annual Meeting & Exhibition
|
Symposium
|
Advanced Materials for Energy Conversion and Storage 2025
|
Presentation Title |
3D printed Carbon and Graphene aerogels for energy storage and conversion applications |
Author(s) |
Swetha Chandrasekaran, Xinzhe Xue, Megan Freyman, Jean-Baptiste Forien, Thomas Roy, Jeremy Feaster, Yat Li, Bruce Dunn, Marcus Worsley |
On-Site Speaker (Planned) |
Swetha Chandrasekaran |
Abstract Scope |
Energy storage and catalysis processes often use high surface area electrodes with macro- and micropores, such as carbon aerogels (CAs). Traditional CA synthesis yields isotropic, random nanoporous networks suitable for diffusion-based mass transport. However, many applications benefit from engineered macroporous structures for enhanced charge-transport kinetics. Our research focuses on 3D printing these aerogels using direct ink writing (DIW), which allows precise deposition of inks along a predefined tool path to create 3D structures, improving mass transport and power efficiency in electrochemical applications. We demonstrated that 3D-printed graphene aerogels can support ultrahigh mass loadings of pseudocapacitive materials. Additionally, 3D-printed sacrificial polymeric templates were employed to produce templated CAs with engineered macroporous networks. By combining MoS2 powders with graphene aerogel, we fabricated a low-cost catalytic electrode via DIW, enhancing electrolyte dispersion, catalyst utilization, and providing multidimensional electron transport channels for improved electronic conductivity in hydrogen production. Prepared by LLNL under Contract DE-AC52-07NA27344. |
Proceedings Inclusion? |
Planned: |
Keywords |
Energy Conversion and Storage, Additive Manufacturing, |