|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Materials for Energy Conversion and Storage
||Nanogalvanic Aluminum Alloys for Power Generation and Self-cannibalizing Robotic Applications
||Anit Giri, Anthony Roberts, Joseph Marsico, Chad Hornbuckle, Scott Grendahl, Kris Darling
|On-Site Speaker (Planned)
Hydrogen is a clean and environmentally friendly fuel for highly efficient energy supply. It is common knowledge that aluminum and its alloys can react with water in presence of catalysts or at elevated temperatures to generate hydrogen. Nanostructured powders based on aluminum have been synthesized at the US Army Research Laboratory that when reacted with water produced hydrogen very rapidly at room temperature without requiring any catalysts. It was possible to achieve 75% of the theoretical hydrogen yield per gram of aluminum in 1 minute and 100% under 3 minutes. This remarkable fast reaction rate was possible due to the realization of nanogalvanic microstructures. Detailed results on hydrogen generation as a function of reaction temperature, alloy composition, etc. will be presented. Utilization of the powder as structural materials to build robots by additive manufacturing and 3D printing that can self-cannibalize on demand for power generation will be discussed.