| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advanced Materials for Energy Conversion and Storage VI
|
| Presentation Title |
Metal Enhancements to Porous Carbon Materials for Hydrogen Storage |
| Author(s) |
Hillary Smith, Cullen Quine, Channing Ahn, David Boyd, Brent Fultz |
| On-Site Speaker (Planned) |
Cullen Quine |
| Abstract Scope |
Enhancement of ambient temperature storage of hydrogen on high surface area super activated carbon (SSA 3350 m2/g) is demonstrated through the addition of copper metal nanoparticles to the carbon matrix. High surface area carbon materials are known to have good hydrogen storage characteristics at cryogenic temperatures through physisorption, but perform poorly at ambient temperatures due to low adsorption enthalpies. Metals have larger adsorption (chemisorption) enthalpies yet lower specific surface areas than carbon. We investigated hydrogen storage characteristics of metal-enhanced carbon materials through temperature programmed desorption (TPD) and isotherm measurements. Isotherm results show the modified copper material has more hydrogen uptake per unit specific surface area than the unmodified carbon at 300K. Isotope TPD experiments determined that for the copper enhanced carbon, there is a low temperature physisorption peak at 120K and a high temperature chemisorption peak at 300K. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |