About this Abstract |
Meeting |
2025 TMS Annual Meeting & Exhibition
|
Symposium
|
Advanced Materials for Energy Conversion and Storage 2025
|
Presentation Title |
Direct Carbon Fuel Cell with Liquid Fe-Mn-Sn-Based Alloy Anode |
Author(s) |
Adam C. Powell, Jacob Fleischer, Casey LaMarca, Eric Aimone, Christopher Pandapas, Matthew Ford, Yu Zhong, Uday Pal |
On-Site Speaker (Planned) |
Adam C. Powell |
Abstract Scope |
A direct carbon fuel cell (DCFC) could efficiently convert solid carbon energy such as charcoal to electricity at high efficiency and with pure CO<sub>2</sub> by-product for negative-emissions bioenergy with carbon capture. Because of slow kinetics of the reaction between solid carbon and oxide ions in a solid electrolyte, an intermediate material is required, such as a liquid metal which can dissolve carbon. Past liquid metal anodes such as tin have suffered from poor solubility of both carbon and oxygen, leading to low current and power densities. This talk will present experiments, modeling results, and economic projections for a DCFC employing an Fe-Mn-Sn alloy anode with high carbon solubility and low eutectic temperature. The porous lanthanum calcium manganite cathode and thin dense yttria-stabilized zirconia electrolyte are similar to those of solid oxide fuel cells. The narrow eutectic composition window is not likely compatible with most coal due to high impurity content. |
Proceedings Inclusion? |
Planned: |
Keywords |
Energy Conversion and Storage, Ceramics, Modeling and Simulation |