|About this Abstract
||MS&T22: Materials Science & Technology
||Energy Materials for Sustainable Development
||Metal Composite Nano-Catalyst Enhanced Solid Oxide Fuel Cell Anodes for Increased Stability within Hydrocarbon Containing Fuels
||Saad Waseem, Edward Sabolsky, Katarzyna Sabolsky, Richard Hart, Seunghyuck Hong
|On-Site Speaker (Planned)
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 hydrocarbons may find their way to the SOFC. The presentation will demonstrate strategies for modifying Ni-based anodes with metal composite nano-catalysts to reduce anode degradation and alleviate the negative effects of the coking under hydrocarbon impurities.
A liquid solution infiltration method (using various catechol surfactants) was developed and optimized which permitted the uniform deposition of 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.