Observation of uniaxial structures of underpotentially deposited cadmium on Au(111) with in situ Scanning Tunneling Microscopy

Joseph C. Bondos, Andrew A Gewirth, Ralph G Nuzzo

Research output: Contribution to journalArticle

Abstract

The atomic structures of several distinct adlayers of Cd underpotentially deposited onto a Au(111) surface in sulfuric acid electrolyte were revealed by in situ scanning tunneling microscopy (STM). Three ordered adlattices were observed, all of which have a long-range linear morphology rotated by 30° from the substrate's lattice directions. Complete geometric descriptions and proposed structures are presented for each. A purely electrostatic model is insufficient to explain the banded morphology which is observed; therefore, other structure-forming interactions, including lattice strain, are discussed as possible contributors.

Original languageEnglish (US)
Pages (from-to)8617-8620
Number of pages4
JournalJournal of physical chemistry
Volume100
Issue number21
DOIs
StatePublished - Jan 1 1996

ASJC Scopus subject areas

  • Engineering(all)
  • Physical and Theoretical Chemistry

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