Abstract
Characterizing size related thermal properties of nanoclusters is challenging due to the requirement to accurately control both their average sizes and the size distributions. In this work, temperature-dependent Extended X-ray Absorption Fine Structure spectroscopy and the phenomenological bond-order-length-strength (BOLS) model were employed to investigate the size-dependent Einstein temperature of Au nanoclusters. Theoretical calculations of Einstein temperature and average bond distance for clusters with different sizes agree quantitatively with experiment. The BOLS model is thus useful for predictive understanding of structure and thermal properties in well-defined metal clusters.
| Original language | English |
|---|---|
| Article number | 012063 |
| Journal | Journal of Physics: Conference Series |
| Volume | 712 |
| Issue number | 1 |
| DOIs | |
| State | Published - 2016 |
| Externally published | Yes |
| Event | 16th International Conference on X-Ray Absorption Fine Structure, XAFS 2015 - Karlsruhe, Germany Duration: Aug 23 2015 → Aug 28 2015 |
Funding
We gratefully acknowledge support from the National Science Foundation grant No. CHE-1534184. We acknowledge the facilities support provided at NSLS at BNL (DOE, BES, Contract No. DE-SC0012704) and the Synchrotron Catalysis Consortium (DOE, BES, Grant No. DE-SC0012335).