About this Abstract |
| Meeting |
MS&T26: Materials Science & Technology
|
| Symposium
|
Phase Transformations in Ceramics: Science and Applications
|
| Presentation Title |
Gasochromic Phase Transitions in Hybrid Nickel Halides |
| Author(s) |
Nathan Cretegny, Eve Mozur, Lance Wheeler, Joey Luther |
| On-Site Speaker (Planned) |
Nathan Cretegny |
| Abstract Scope |
Phase transitions of organic-inorganic hybrid ceramics under different atmospheres are often associated with changes in color, making them attractive materials for gasochromic applications. Current work has largely focused on lead-halide compounds, owing to their popularity in photovoltaics and known reactivity with ambient air. Lead-halide materials demonstrate varied reaction mechanisms, but suffer from overlapping responses among various gases. We envision materials with tailored responses to different gases, leveraging the highly tunable composition space and thermodynamic stability of transition-metal hybrid ceramics. Exploring beyond lead-based compounds is essential to understanding the kinetics and phase transformations that enable gasochromic reactivity. Here, we investigate the response of 1D nickel-based hybrid ceramics to water vapor and ammonia to understand the underlying mechanisms governing gasochromism. By tuning the organic cation and metal ligands, we assess their impacts on gasochromism to develop better design criteria for selective reactivity. |