| About this Abstract |
| Meeting |
MS&T22: Materials Science & Technology
|
| Symposium
|
Society for Biomaterials: Student Poster Contest + Rapid Fire
|
| Presentation Title |
C-20: Understanding of Interface-property Relationships of Vertically Aligned Mixed Ionic Electronic Conductor-ionic Conductor Heterostructures |
| Author(s) |
Gene Yang, Mohammad El Loubani, Dongkyu Lee |
| On-Site Speaker (Planned) |
Gene Yang |
| Abstract Scope |
To develop oxide-based energy applications such as solid oxide fuel cells, the sluggish reaction kinetics at the electrode needs to be overcome. Among various approaches to improve the electrode performance, oxide multilayer thin films consisting of mixed ionic-electronic conducting oxides (MIEC) and ionic conductors have recently attracted increasing attention since both ion conduction and electrocatalytic activity can be enhanced by interfacial strain. However, nanoscale thickness required for maintaining interfacial strain along the lateral direction is impractical. Thus, new design concepts are required to realize heterostructures with micron-scale thickness for commercial applications. In this work, a combination of MIECs and Gd-doped CeO2 (GDC) is used in the form of vertically aligned heterostructures to investigate the relationships between structure, interface, and material property. Our finding will provide a rational design strategy to precisely control the strained interfaces facilitating the development of high-performance electrochemical energy applications. |