| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Functional Nanomaterials
|
| Presentation Title |
Effect of Metal modification on the laminating structure and dielectric performance of Graphene oxide membranes |
| Author(s) |
Yijing Stehle, Timothy J. Barnum, Ellen Robertson, Maren Friday, Veronah Najjuuko, Qin Zou |
| On-Site Speaker (Planned) |
Yijing Stehle |
| Abstract Scope |
Graphene oxide (GO) membranes, noted for their high dielectric constant and low dielectric loss, are promising separators for advanced energy storage devices. Previous research has enhanced aqueous stability using high-valence metal cations, but their impact on GO's dielectric properties is understudied. This study explores how metal cations with different valence electrons affect GO's dielectric performance by disrupting its ordered laminating structure. We analyze the capacitance across a frequency range of 0.01 Hz to 105 Hz using dielectric capacitors with GO and metal cation-modified GO (MGO) membranes between carbon paper layers. Results show that metals with low ambient stability have a nuanced effect on GO's dielectric application. Our findings present an effective strategy for tailoring GO's dielectric properties, advancing the development of GO-based materials with controllable dielectric performance for various applications. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Nanotechnology, Energy Conversion and Storage, Thin Films and Interfaces |