About this Abstract |
Meeting |
2022 TMS Annual Meeting & Exhibition
|
Symposium
|
Self-organizing Nano-architectured Materials
|
Presentation Title |
Nanoporous Nanoparticles: From Catalysis to 3D Printing |
Author(s) |
Jonah Erlebacher, Alyssa Chuang, Pheobe Appel, Jodie Baris |
On-Site Speaker (Planned) |
Jonah Erlebacher |
Abstract Scope |
Dealloying provides a particularly facile route to the synthesis of high surface area nanoporous nanoparticles, i.e., particles with mesoscopic geometric diameter that themselves contain porosity with a ligament size an order of magnitude smaller. In our laboratory, we have developed a number of routes to make these materials include nanoporous Pt nanoparticles with ~3 nm pores inside 15 nm particles, and nanoporous Ta particles 10 microns in diameter possessing 100 nm pores. In this talk, we will discuss methods for the next level assembly of such particles into more complex architectures. We are addressing this problem by studying useful and novel dealloying systems guided by insights from kinetic Monte Carlo modeling. The central question is this: how can we organize these particles using the traditional levers of thermal and mechanical treatments (e.g., sintering or 3D printing), without destroying the functional porosity within the particles. |
Proceedings Inclusion? |
Undecided |
Keywords |
Additive Manufacturing, Powder Materials, Modeling and Simulation |