Variable-temperature scanning tunneling microscopy and computational studies examining water and potassium adsorption on Au(100)

T. Y.Becky Leung, Dennis P. Butcher, Andrew A. Gewirth

Research output: Contribution to journalArticlepeer-review

Abstract

The coadsorption of water and potassium on a Au(100) surface is examined using variable-temperature Scanning Tunneling Microscopy (STM). The two-layer system initially formed on the reconstructed Au(100) through addition of K is converted into a labyrinthine row structure upon the introduction of water. This structure features KOH molecules likely covered with a water adlayer. Density Functional Theory (DFT) calculations provide further insight into the observed labyrinthine striped structures formed by adsorbed KOH. Images obtained following limited introduction of water feature larger unreacted areas and a more disordered row structure.

Original languageEnglish (US)
Pages (from-to)555-562
Number of pages8
JournalJournal of Physical Chemistry C
Volume116
Issue number1
DOIs
StatePublished - Jan 12 2012

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Energy(all)
  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films

Fingerprint Dive into the research topics of 'Variable-temperature scanning tunneling microscopy and computational studies examining water and potassium adsorption on Au(100)'. Together they form a unique fingerprint.

Cite this