| About this Abstract |
| Meeting |
2021 TMS Annual Meeting & Exhibition
|
| Symposium
|
2021 Technical Division Student Poster Contest
|
| Presentation Title |
Using Distribution of Relaxation Times Analysis and Microstructural Characterization to Quantify the Effects of Nanoparticle Infiltrants on the Catalytic Activity of Solid Oxide Fuel Cell Anodes |
| Author(s) |
Jillian R. Mulligan, Boshan Mo, Uday Pal, Srikanth Gopalan, Soumendra Basu |
| On-Site Speaker (Planned) |
Jillian R. Mulligan |
| Abstract Scope |
Improvements in the intermediate-temperature operation and expansion of the applications of solid oxide fuel cells (SOFCs) requires mitigation of anode activation polarization while maintaining long-term microstructural stability during use. Infiltrating nanoparticle electrocatalysts into SOFC anodes has been shown to increase the number of electrochemically actives sites, thereby decreasing charge transfer polarization losses and improving performance. In this study, Nickel was infiltrated into Ni-YSZ SOFC anodes. The microstructures of these infiltrated anodes were characterized by scanning electron microscopy (SEM) of fracture cross sections, and their performance quantified in-operando using electrochemical impedance spectroscopy (EIS). The kinetics of various charge transfer processes were modeled using distribution of relaxation times (DRT) analysis of the EIS spectra. |
| Proceedings Inclusion? |
Undecided |
| Keywords |
Energy Conversion and Storage, Characterization, |