| About this Abstract |
| Meeting |
MS&T21: Materials Science & Technology
|
| Symposium
|
Energy Materials for Sustainable Development
|
| Presentation Title |
Nano-Catalyst Enhanced Solid Oxide Fuel Cell Anodes for Increased Stability within Hydrocarbon Containing Fuels |
| Author(s) |
Saad Waseem, Edward Sabolsky, Katarzyna Sabolsky, Richard Hart, Seunghyuck Hong |
| On-Site Speaker (Planned) |
Saad Waseem |
| Abstract Scope |
The objective of this work was to investigate methods to increase the performance and stability of solid oxide fuel cells (SOFCs) with Ni-based anodes operating on hydrocarbon reformate fuels. Although it is expected that the operation of a fuel reformer upstream of the SOFC stack would produce the proper syngas composition, there is a probability that low levels of methane and higher hydrocarbons may find their way to the SOFC anode. The presentation will demonstrate strategies for modifying the existing Ni-based anodes with nano-catalyst in order to alleviate the negative effects of the coking mechanism.
A liquid solution infiltration (impregnation) method was developed and optimized which permitted the uniform deposition of both single- and multi-phase nano-catalysts throughout the porous anode. The impregnated SOFCs were evaluated using current-voltage-power (I-V-P) measurements and electrochemical impedance spectroscopy while operating under varying reformate fuel compositions. Post-mortem microstructure and chemistry characterizations were used in analysis. |