(Bi)sulfate adsorption on quasiperfect Pt(111) facets from acidic aqueous electrolytes as monitored by optical techniques

Iosif Fromondi, Daniel Alberto Scherson

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

The adsorption of (bi)sulfate on quasiperfect Pt(111) facets was monitored by simultaneous reflectance spectroscopy (RS) and second harmonic generation (SHG) while scanning the potential linearly between prescribed values in aqueous acidic solutions. Simple correlations were found between both the normalized differential reflectance, ΔR/R (λ = 633 nm, angle of incidence, Φ inc = 45°) and the intensity of the SHG light, I pp(2ω) (λ inc = 590 nm, where pp refers to the input and output polarization) and the Gibbs free excess of (bi)sulfate, Γ HSO4· (Herrero et al. J. Electroanal. Chem. 2002, 554,79-89), in a potential range negative to the sharp voltammetric peak, for (bi)sulfate concentrations spanning over two orders of magnitudes.

Original languageEnglish
Pages (from-to)10154-10157
Number of pages4
JournalJournal of Physical Chemistry C
Volume111
Issue number28
DOIs
Publication statusPublished - 2007 Jul 19
Externally publishedYes

Fingerprint

Electrolytes
Sulfates
flat surfaces
sulfates
electrolytes
Harmonic generation
Adsorption
adsorption
harmonic generations
reflectance
incidence
Spectroscopy
Polarization
aqueous solutions
Scanning
scanning
output
polarization
spectroscopy

ASJC Scopus subject areas

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

Cite this

(Bi)sulfate adsorption on quasiperfect Pt(111) facets from acidic aqueous electrolytes as monitored by optical techniques. / Fromondi, Iosif; Scherson, Daniel Alberto.

In: Journal of Physical Chemistry C, Vol. 111, No. 28, 19.07.2007, p. 10154-10157.

Research output: Contribution to journalArticle

@article{f6354aecf59c434d9096978a2ae2e03a,
title = "(Bi)sulfate adsorption on quasiperfect Pt(111) facets from acidic aqueous electrolytes as monitored by optical techniques",
abstract = "The adsorption of (bi)sulfate on quasiperfect Pt(111) facets was monitored by simultaneous reflectance spectroscopy (RS) and second harmonic generation (SHG) while scanning the potential linearly between prescribed values in aqueous acidic solutions. Simple correlations were found between both the normalized differential reflectance, ΔR/R (λ = 633 nm, angle of incidence, Φ inc = 45°) and the intensity of the SHG light, I pp(2ω) (λ inc = 590 nm, where pp refers to the input and output polarization) and the Gibbs free excess of (bi)sulfate, Γ HSO4· (Herrero et al. J. Electroanal. Chem. 2002, 554,79-89), in a potential range negative to the sharp voltammetric peak, for (bi)sulfate concentrations spanning over two orders of magnitudes.",
author = "Iosif Fromondi and Scherson, {Daniel Alberto}",
year = "2007",
month = "7",
day = "19",
doi = "10.1021/jp073330f",
language = "English",
volume = "111",
pages = "10154--10157",
journal = "Journal of Physical Chemistry C",
issn = "1932-7447",
publisher = "American Chemical Society",
number = "28",

}

TY - JOUR

T1 - (Bi)sulfate adsorption on quasiperfect Pt(111) facets from acidic aqueous electrolytes as monitored by optical techniques

AU - Fromondi, Iosif

AU - Scherson, Daniel Alberto

PY - 2007/7/19

Y1 - 2007/7/19

N2 - The adsorption of (bi)sulfate on quasiperfect Pt(111) facets was monitored by simultaneous reflectance spectroscopy (RS) and second harmonic generation (SHG) while scanning the potential linearly between prescribed values in aqueous acidic solutions. Simple correlations were found between both the normalized differential reflectance, ΔR/R (λ = 633 nm, angle of incidence, Φ inc = 45°) and the intensity of the SHG light, I pp(2ω) (λ inc = 590 nm, where pp refers to the input and output polarization) and the Gibbs free excess of (bi)sulfate, Γ HSO4· (Herrero et al. J. Electroanal. Chem. 2002, 554,79-89), in a potential range negative to the sharp voltammetric peak, for (bi)sulfate concentrations spanning over two orders of magnitudes.

AB - The adsorption of (bi)sulfate on quasiperfect Pt(111) facets was monitored by simultaneous reflectance spectroscopy (RS) and second harmonic generation (SHG) while scanning the potential linearly between prescribed values in aqueous acidic solutions. Simple correlations were found between both the normalized differential reflectance, ΔR/R (λ = 633 nm, angle of incidence, Φ inc = 45°) and the intensity of the SHG light, I pp(2ω) (λ inc = 590 nm, where pp refers to the input and output polarization) and the Gibbs free excess of (bi)sulfate, Γ HSO4· (Herrero et al. J. Electroanal. Chem. 2002, 554,79-89), in a potential range negative to the sharp voltammetric peak, for (bi)sulfate concentrations spanning over two orders of magnitudes.

UR - http://www.scopus.com/inward/record.url?scp=34547524277&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=34547524277&partnerID=8YFLogxK

U2 - 10.1021/jp073330f

DO - 10.1021/jp073330f

M3 - Article

AN - SCOPUS:34547524277

VL - 111

SP - 10154

EP - 10157

JO - Journal of Physical Chemistry C

JF - Journal of Physical Chemistry C

SN - 1932-7447

IS - 28

ER -