Surface electrochemistry

Journal Article · Mon Jan 01 04:00:00 EST 1990 · Langmuir; (USA)

DOI:https://doi.org/10.1021/la00091a014· OSTI ID:7003051

Hubbard, A T ^[1]

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1. Univ. of Cincinnati, OH (USA)

Surface electrochemistry studies are described in which molecular layers formed at Pt(111) surfaces in electrolyte solutions are characterized by surface spectroscopy and voltammetric methods. Types of compounds studied thus far include alcohols, aldehydes, alkenes, alkynes, amides, amines, amino acids, aromatic compounds, electrodeposited metals (Ag, Cu, Bi, Pb, Tl), halides, cyanide, thiocyanate, mercaptans, nitriles, and others. Chemisorbed species are in most cases not removed from Pt by rinsing. Cyclic voltammetry of reversibly electroactive adsorbates before and after evacuation has revealed that chemisorbed layers formed in solution are stable also in vacuum, permitting identification and quantitation by Auger spectroscopy, EELS, LEED, and related methods. Elemental composition and molecular packing density of adsorbed molecular layers are reliably measured by means of Auger spectroscopy, provided that beam currents are kept sufficiently small and the apparatus is directly calibrated.

• OSTI ID: 7003051
• Journal Information: Langmuir; (USA), Journal Name: Langmuir; (USA) Vol. 6:1; ISSN LANGD; ISSN 0743-7463
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104 -- Metals & Alloys-- Physical Properties
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400400* -- Electrochemistry
CHEMICAL REACTIONS
CHEMISORPTION
CHEMISTRY
DATA
DATA ANALYSIS
ELECTROCHEMISTRY
ELECTROLYTES
ELEMENTS
EXPERIMENTAL DATA
INFORMATION
MEASURING INSTRUMENTS
MEASURING METHODS
METALS
NUMERICAL DATA
ORGANIC COMPOUNDS
PLATINUM
PLATINUM METALS
SEPARATION PROCESSES
SORPTION
SURFACE PROPERTIES
SURFACES
TRANSITION ELEMENTS
VOLTAMETRY