Studies of Adsorbed Saturated Alcohols at Pt(111) Electrodes by Vibrational Spectroscopy (EELS), Auger Spectroscopy, and Electrochemistry

Ping Gao, Chiu-Hsun Lin, Curtis Shannon, Ghaleb N. Salaita, James H. White, Scott A. Chaffins, Arthur T. Hubbard

Research output: Contribution to journalArticle

29 Citations (Scopus)

Abstract

Adsorption of a representative series of saturated alcohols from aqueous fluoride solutions at a Pt(111) electrode surface has been studied by means of Auger spectroscopy, electron energy-loss spectroscopy (EELS), and cyclic voltammetry (CV). Alcohols studied are as follows: methanol (MeOH); ethanol (EtOH); propanol (PrOH); 2-propanol (2PrOH); 1-butanol (BuOH); racemic 2-butanol (2BuOH); (R)-(−)-2-butanol (R2BuOH); (S)-(+)-2-butanol (S2BuOH); 2-methyl-2-propanol (tert-butyl alcohol, tBuOH); 1-hexanol (HxOH); cyclohexanol (CyOH); 1-heptanol (HpOH); 1,4-butanediol [Bu(OH)2]; 1,6-hexanediol [Hx(OH)2]. Each alcohol studied chemisorbs at Pt(111) from aqueous fluoride electrolyte solution (pH = 4; electrode potential typically −0.1 V vs Ag/AgCl reference; alcohol concentration 0.1 M or saturated) to form a layer that is stable under vacuum and in solution. Surface attachment of saturated alcohols is through the oxygen atom and possibly the adjoining carbon atom. The aliphatic moieties of EtOH, PrOH, 2BuOH, R2BuOH, S2BuOH, 2PtOH, BuOH, 2BuOH, R2BuOH, S2BuOH, HxOH, HpOH, CyOH, and Bu(OH)2 are in contact with the Pt(111) surface. However, the alkyl chain and one OH group of Hx(OH)2 are pendant; tBuOH likewise has a pendant alkyl moiety in the adsorbed state. “Short-chain” alcohols such as MeOH, EtOH, PrOH, 2PrOH, BuOH, and Bu(OH)2 undergo partial decomposition as a result of adsorption from aqueous solution at Pt(111) to form a mixed adsorbed layer consisting of CO and the appropriate alkoxide. Electrochemical oxidation of the adsorbed intermediate is limited primarily to the carbon atom adjacent to the attached oxygen atoms.

Original languageEnglish
Pages (from-to)1515-1524
Number of pages10
JournalLangmuir
Volume7
Issue number7
DOIs
Publication statusPublished - 1991 Jul 1

Fingerprint

Vibrational spectroscopy
Electron energy loss spectroscopy
Electrochemistry
electrochemistry
Auger spectroscopy
alcohols
Alcohols
energy dissipation
Spectroscopy
electron energy
Electrodes
electrodes
Butenes
Cyclohexanols
tert-Butyl Alcohol
spectroscopy
Atoms
Propanol
2-Propanol
Fluorides

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Spectroscopy
  • Electrochemistry

Cite this

Gao, Ping ; Lin, Chiu-Hsun ; Shannon, Curtis ; Salaita, Ghaleb N. ; White, James H. ; Chaffins, Scott A. ; Hubbard, Arthur T. / Studies of Adsorbed Saturated Alcohols at Pt(111) Electrodes by Vibrational Spectroscopy (EELS), Auger Spectroscopy, and Electrochemistry. In: Langmuir. 1991 ; Vol. 7, No. 7. pp. 1515-1524.
@article{0d35f7c572704cd691992ee150cfab75,
title = "Studies of Adsorbed Saturated Alcohols at Pt(111) Electrodes by Vibrational Spectroscopy (EELS), Auger Spectroscopy, and Electrochemistry",
abstract = "Adsorption of a representative series of saturated alcohols from aqueous fluoride solutions at a Pt(111) electrode surface has been studied by means of Auger spectroscopy, electron energy-loss spectroscopy (EELS), and cyclic voltammetry (CV). Alcohols studied are as follows: methanol (MeOH); ethanol (EtOH); propanol (PrOH); 2-propanol (2PrOH); 1-butanol (BuOH); racemic 2-butanol (2BuOH); (R)-(−)-2-butanol (R2BuOH); (S)-(+)-2-butanol (S2BuOH); 2-methyl-2-propanol (tert-butyl alcohol, tBuOH); 1-hexanol (HxOH); cyclohexanol (CyOH); 1-heptanol (HpOH); 1,4-butanediol [Bu(OH)2]; 1,6-hexanediol [Hx(OH)2]. Each alcohol studied chemisorbs at Pt(111) from aqueous fluoride electrolyte solution (pH = 4; electrode potential typically −0.1 V vs Ag/AgCl reference; alcohol concentration 0.1 M or saturated) to form a layer that is stable under vacuum and in solution. Surface attachment of saturated alcohols is through the oxygen atom and possibly the adjoining carbon atom. The aliphatic moieties of EtOH, PrOH, 2BuOH, R2BuOH, S2BuOH, 2PtOH, BuOH, 2BuOH, R2BuOH, S2BuOH, HxOH, HpOH, CyOH, and Bu(OH)2 are in contact with the Pt(111) surface. However, the alkyl chain and one OH group of Hx(OH)2 are pendant; tBuOH likewise has a pendant alkyl moiety in the adsorbed state. “Short-chain” alcohols such as MeOH, EtOH, PrOH, 2PrOH, BuOH, and Bu(OH)2 undergo partial decomposition as a result of adsorption from aqueous solution at Pt(111) to form a mixed adsorbed layer consisting of CO and the appropriate alkoxide. Electrochemical oxidation of the adsorbed intermediate is limited primarily to the carbon atom adjacent to the attached oxygen atoms.",
author = "Ping Gao and Chiu-Hsun Lin and Curtis Shannon and Salaita, {Ghaleb N.} and White, {James H.} and Chaffins, {Scott A.} and Hubbard, {Arthur T.}",
year = "1991",
month = "7",
day = "1",
doi = "10.1021/la00055a039",
language = "English",
volume = "7",
pages = "1515--1524",
journal = "Langmuir",
issn = "0743-7463",
publisher = "American Chemical Society",
number = "7",

}

Studies of Adsorbed Saturated Alcohols at Pt(111) Electrodes by Vibrational Spectroscopy (EELS), Auger Spectroscopy, and Electrochemistry. / Gao, Ping; Lin, Chiu-Hsun; Shannon, Curtis; Salaita, Ghaleb N.; White, James H.; Chaffins, Scott A.; Hubbard, Arthur T.

In: Langmuir, Vol. 7, No. 7, 01.07.1991, p. 1515-1524.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Studies of Adsorbed Saturated Alcohols at Pt(111) Electrodes by Vibrational Spectroscopy (EELS), Auger Spectroscopy, and Electrochemistry

AU - Gao, Ping

AU - Lin, Chiu-Hsun

AU - Shannon, Curtis

AU - Salaita, Ghaleb N.

AU - White, James H.

AU - Chaffins, Scott A.

AU - Hubbard, Arthur T.

PY - 1991/7/1

Y1 - 1991/7/1

N2 - Adsorption of a representative series of saturated alcohols from aqueous fluoride solutions at a Pt(111) electrode surface has been studied by means of Auger spectroscopy, electron energy-loss spectroscopy (EELS), and cyclic voltammetry (CV). Alcohols studied are as follows: methanol (MeOH); ethanol (EtOH); propanol (PrOH); 2-propanol (2PrOH); 1-butanol (BuOH); racemic 2-butanol (2BuOH); (R)-(−)-2-butanol (R2BuOH); (S)-(+)-2-butanol (S2BuOH); 2-methyl-2-propanol (tert-butyl alcohol, tBuOH); 1-hexanol (HxOH); cyclohexanol (CyOH); 1-heptanol (HpOH); 1,4-butanediol [Bu(OH)2]; 1,6-hexanediol [Hx(OH)2]. Each alcohol studied chemisorbs at Pt(111) from aqueous fluoride electrolyte solution (pH = 4; electrode potential typically −0.1 V vs Ag/AgCl reference; alcohol concentration 0.1 M or saturated) to form a layer that is stable under vacuum and in solution. Surface attachment of saturated alcohols is through the oxygen atom and possibly the adjoining carbon atom. The aliphatic moieties of EtOH, PrOH, 2BuOH, R2BuOH, S2BuOH, 2PtOH, BuOH, 2BuOH, R2BuOH, S2BuOH, HxOH, HpOH, CyOH, and Bu(OH)2 are in contact with the Pt(111) surface. However, the alkyl chain and one OH group of Hx(OH)2 are pendant; tBuOH likewise has a pendant alkyl moiety in the adsorbed state. “Short-chain” alcohols such as MeOH, EtOH, PrOH, 2PrOH, BuOH, and Bu(OH)2 undergo partial decomposition as a result of adsorption from aqueous solution at Pt(111) to form a mixed adsorbed layer consisting of CO and the appropriate alkoxide. Electrochemical oxidation of the adsorbed intermediate is limited primarily to the carbon atom adjacent to the attached oxygen atoms.

AB - Adsorption of a representative series of saturated alcohols from aqueous fluoride solutions at a Pt(111) electrode surface has been studied by means of Auger spectroscopy, electron energy-loss spectroscopy (EELS), and cyclic voltammetry (CV). Alcohols studied are as follows: methanol (MeOH); ethanol (EtOH); propanol (PrOH); 2-propanol (2PrOH); 1-butanol (BuOH); racemic 2-butanol (2BuOH); (R)-(−)-2-butanol (R2BuOH); (S)-(+)-2-butanol (S2BuOH); 2-methyl-2-propanol (tert-butyl alcohol, tBuOH); 1-hexanol (HxOH); cyclohexanol (CyOH); 1-heptanol (HpOH); 1,4-butanediol [Bu(OH)2]; 1,6-hexanediol [Hx(OH)2]. Each alcohol studied chemisorbs at Pt(111) from aqueous fluoride electrolyte solution (pH = 4; electrode potential typically −0.1 V vs Ag/AgCl reference; alcohol concentration 0.1 M or saturated) to form a layer that is stable under vacuum and in solution. Surface attachment of saturated alcohols is through the oxygen atom and possibly the adjoining carbon atom. The aliphatic moieties of EtOH, PrOH, 2BuOH, R2BuOH, S2BuOH, 2PtOH, BuOH, 2BuOH, R2BuOH, S2BuOH, HxOH, HpOH, CyOH, and Bu(OH)2 are in contact with the Pt(111) surface. However, the alkyl chain and one OH group of Hx(OH)2 are pendant; tBuOH likewise has a pendant alkyl moiety in the adsorbed state. “Short-chain” alcohols such as MeOH, EtOH, PrOH, 2PrOH, BuOH, and Bu(OH)2 undergo partial decomposition as a result of adsorption from aqueous solution at Pt(111) to form a mixed adsorbed layer consisting of CO and the appropriate alkoxide. Electrochemical oxidation of the adsorbed intermediate is limited primarily to the carbon atom adjacent to the attached oxygen atoms.

UR - http://www.scopus.com/inward/record.url?scp=0026191296&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0026191296&partnerID=8YFLogxK

U2 - 10.1021/la00055a039

DO - 10.1021/la00055a039

M3 - Article

VL - 7

SP - 1515

EP - 1524

JO - Langmuir

JF - Langmuir

SN - 0743-7463

IS - 7

ER -