Anion adsorption on Pt(100) from sulfuric acid: Electrochemistry and Fourier transform infrared spectroscopy

Journal Article · Tue Jun 01 04:00:00 EDT 1993 · Journal of the Electrochemical Society; (United States)

DOI:https://doi.org/10.1149/1.2221615· OSTI ID:6250055

Faguy, P W ^[1]; Markovic, N; Ross, Jr, P N ^[2]

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1. Univ. of Louisville, KY (United States). Dept. of Chemistry
2. Univ. of California, Berkeley, CA (United States). Materials Science Div.

The adsorption of bisulfate and sulfate anions from 0.05M H[sub 2]SO[sub 4] solution on Pt(100) was characterized by Fourier transform infrared spectroscopy (FTIR). Subtractively normalized interfacial FTIR spectra (SNIFTIRS) indicated only weak adsorption of bisulfate at potentials below 0.4 V (vs. PdH), in contrast to the strong adsorption seen on the (111) surface by the same technique. At potentials above 0.6 V the SNIFTIRS spectra were due entirely to diffuse layer species. At potentials between 0.4 and 0.6 V, changes in the IR bands indicated either a rearrangement (and possibly deprotonation) of adsorbed bisulfate or weak adsorption of sulfate ion.

• DOE Contract Number: AC03-76SF00098
• OSTI ID: 6250055
• Journal Information: Journal of the Electrochemical Society; (United States), Journal Name: Journal of the Electrochemical Society; (United States) Journal Issue: 6 Vol. 140:6; ISSN 0013-4651; ISSN JESOAN
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400400* -- Electrochemistry
ABSORPTION SPECTROSCOPY
ADSORPTION
CHEMISTRY
DATA
ELECTRIC POTENTIAL
ELECTROCHEMISTRY
ELECTROMAGNETIC RADIATION
ELEMENTS
EXPERIMENTAL DATA
FOURIER TRANSFORMATION
HYDROGEN COMPOUNDS
INFORMATION
INFRARED RADIATION
INORGANIC ACIDS
INTEGRAL TRANSFORMATIONS
METALS
NUMERICAL DATA
OXYGEN COMPOUNDS
PLATINUM
PLATINUM METALS
RADIATIONS
SORPTION
SORPTIVE PROPERTIES
SPECTROSCOPY
SULFATES
SULFUR COMPOUNDS
SULFURIC ACID
SURFACE PROPERTIES
TRANSFORMATIONS
TRANSITION ELEMENTS
VOLTAMETRY