Campus Units

Chemistry, Materials Science and Engineering, Ames Laboratory, Physics and Astronomy

Document Type

Article

Publication Version

Published Version

Publication Date

7-2020

Journal or Book Title

Physical Review Research

Volume

2

Issue

3

First Page

033175

DOI

10.1103/PhysRevResearch.2.033175

Abstract

Using scanning tunneling microscopy, we show that Pt clusters can be encapsulated beneath the surface of graphite, whereas Ag and Au cannot. This is in complete agreement with independent predictions from density functional theory, which show that surface intercalation of single metal atoms is favorable for Pt, but unfavorable for Ag and Au. This supports the validity of using single-metal-atom energetics for predicting encapsulation of metal nanoparticles at the graphite surface. We also demonstrate that the optimal temperature for encapsulation scales with the cohesive energy of the metal.

Comments

This article is published as Lii-Rosales, Ann, Yong Han, Dapeng Jing, Michael C. Tringides, and Patricia A. Thiel. "Search for encapsulation of platinum, silver, and gold at the surface of graphite." Physical Review Research 2, no. 3 (2020): 033175. DOI: 10.1103/PhysRevResearch.2.033175. Posted with permission.

Creative Commons License

Creative Commons Attribution 4.0 License
This work is licensed under a Creative Commons Attribution 4.0 License.

Copyright Owner

The Author(s)

Language

en

File Format

application/pdf

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