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Article
Bulk single crystal growth and sample surface preparation of catalytic NaAu2
Journal of Alloys and Compounds
  • Deborah L. Schlagel, Ames Laboratory
  • Matthew F. Besser, Ames Laboratory
  • Chad D. Yuen, Iowa State University
  • Holly Walen, Iowa State University
  • Emma J. Kwolek, Iowa State University
  • Patricia A. Thiel, Iowa State University and Ames Laboratory
  • Thomas A. Lograsso, Iowa State University and Ames Laboratory
Document Type
Article
Publication Version
Accepted Manuscript
Publication Date
1-1-2019
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
Copyright Owner
Elsevier B.V.
Language
en
File Format
application/pdf
Citation Information
Deborah L. Schlagel, Matthew F. Besser, Chad D. Yuen, Holly Walen, et al.. "Bulk single crystal growth and sample surface preparation of catalytic NaAu2" Journal of Alloys and Compounds (2019)
Available at: http://works.bepress.com/patricia_thiel/152/