Campus Units

Chemistry, Materials Science and Engineering, Ames Laboratory

Document Type

Article

Publication Version

Accepted Manuscript

Publication Date

2019

Journal or Book Title

Journal of Alloys and Compounds

DOI

10.1016/j.jallcom.2019.02.204

Abstract

Here in we have grown bulk single crystals of NaAu2 for the first time to enable surface studies on the nature of the (111) bulk surface. This intermetallic compound exhibits surprisingly high catalytic activity for CO oxidation, a benchmark reaction. Theory predicts NaAu2 to be the most thermodynamically stable composition in the Na-Au binary phase diagram and NaAu2 has been seen to preferentially form in experiments containing Na and Au which supports this prediction. The (111) surface was also predicted to be the most stable and is nearly bulk-terminated making single crystal samples prepared with this crystallographic orientation a fitting choice. The crystal quality and surface composition of the metallographically prepared surface was determined by x-ray diffraction methods in addition to optical and electron microscopy.

Comments

This is a manuscript of an article published as Schlagel, Deborah L., Matthew F. Besser, Chad D. Yuen, Holly Walen, Emma J. Kwolek, Patricia A. Thiel, and Thomas A. Lograsso. "Bulk single crystal growth and sample surface preparation of catalytic NaAu2." Journal of Alloys and Compounds (2019). DOI: 10.1016/j.jallcom.2019.02.204. Posted with permission.

Creative Commons License

Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.

Copyright Owner

Elsevier B.V.

Language

en

File Format

application/pdf

Available for download on Sunday, February 21, 2021

Published Version

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