| AVS 64th International Symposium & Exhibition | |
| Thin Films Division | Monday Sessions |
| Session TF+EM-MoM |
| Session: | ALD for Energy Conversion, Storage, and Electrochemical Processes |
| Presenter: | Haoming Yan, University of Alabama |
| Authors: | H.M. Yan, University of Alabama X.Z. Yu, University of Alabama Q. Peng, University of Alabama |
| Correspondent: | Click to Email |
Ultra small (≤ 5 nm) metal nanoparticles (USMNPs), especially Au, have attracted increasing attention due to their remarkable catalytic activity and selectivity in many important reactions. However, their catalytic properties are greatly affected by the poor thermal stability and the macro-molecular capping ligand (MCL) layer on their surfaces. Encapsulating the USMNPs with a porous oxide shell (pOXIDE) is a solution for both issues. So far, there has been limited success in generating the pOXIDE shell on the supported USMNP without significantly blocking its active sites. The objective of this work is to demonstrate the MCL layer templated atomic layer deposition (ALD) can be applied to synthesize the pOXIDE shell on the USMNPs to improve their thermal stability while keeping most of the surface active sites on USMNPs for the catalytic reaction.