| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Characterization of Materials through High Resolution Coherent Imaging
|
| Presentation Title |
Rationalization of CO2 Adsorption on Ni nanocrystals using Bragg Coherent X-ray Imaging |
| Author(s) |
Corentin Chatelier, Clément Atlan, David Simonne, Joël Eymery, Marie-Ingrid Richard |
| On-Site Speaker (Planned) |
Corentin Chatelier |
| Abstract Scope |
Every year, human activities release billions of CO2 into the atmosphere, causing global climate change due its greenhouse effect. An approach to prevent this issue is the chemical recycling of CO2 through its hydrogenation into value-added products. Ni-based catalysts are the most widely used due to their low-cost and high selectivity. As the thermodynamic feasibility of the conversion of CO2 to methane and methanol is highly depending on the partial pressure of the reactants, it is of interest to evaluate the effect of the reaction conditions on the strain evolution. In this regard, the surface strain of a single 300 nm Ni nanocrystal is probed using in situ Bragg Coherent X-ray Imaging under different partial pressures of CO2 (50 to 250 mbar) at the fourth generation Extremely Brilliant Source of ESRF. This reveals important and reversible strain signatures. This allows to gather new insights into possible adsorption and reaction mechanisms. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Other, Other, Other |