Influence of beryllium cations on the electrochemical oxidation of methanol on stepped platinum surfaces in alkaline solution

Gonzalo García; Chantal Stoffelsma; Paramaconi Rodriguez; Marc T M Koper

doi:10.1016/j.susc.2014.06.012

Influence of beryllium cations on the electrochemical oxidation of methanol on stepped platinum surfaces in alkaline solution

Gonzalo García^*, Chantal Stoffelsma, Paramaconi Rodriguez, Marc T M Koper

^*Corresponding author for this work

Chemistry

Research output: Contribution to journal › Article › peer-review

10 Citations (Scopus)

272 Downloads (Pure)

Abstract

The role of beryllium on the oxidation of methanol on Pt stepped surfaces (Pt[(n-1) (111)x(110)]) orientation—Pt(553) with n = 5, Pt(554) n = 10, Pt(151514) n = 30), Pt(111) and Pt(110) single crystals in alkaline media was studied by cyclic voltammetry and Fourier transform infrared spectroscopy (FTIRS). The results suggest that under the conditions of the experiment, the methanol oxidation reaction follows a direct pathway with formaldehyde and formate as reaction intermediates. The combination of OHads and beryllium blocks the adsorption and oxidation of methanol on Pt(111), but appears to promote the complete oxidation of methanol to carbon dioxide/carbonate on Pt(110).

Original language	English
Pages (from-to)	267-271
Number of pages	5
Journal	Surface Science
Volume	631
Early online date	27 Jun 2014
DOIs	https://doi.org/10.1016/j.susc.2014.06.012
Publication status	Published - 1 Jan 2015

Keywords

Electrocatalysis
Methanol oxidation
Platinum single crystals
Alkaline solution
beryllium

ASJC Scopus subject areas

Surfaces and Interfaces
Condensed Matter Physics
Materials Chemistry
Surfaces, Coatings and Films

Access to Document

10.1016/j.susc.2014.06.012

Rodriguez_Influence_beryllium_cations_Surface_Science_2014
NOTICE: this is the author’s version of a work that was accepted for publication in Surface Science. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Surface Science, Vol 631, January 2015, DOI: 10.1016/j.susc.2014.06.012 Eligibility for repository checked April 2015
Accepted author manuscript, 636 KBLicence: Other (please specify with Rights Statement)

Cite this

@article{e4280455ebc747cda0b8435d66c3a24a,

title = "Influence of beryllium cations on the electrochemical oxidation of methanol on stepped platinum surfaces in alkaline solution",

abstract = "The role of beryllium on the oxidation of methanol on Pt stepped surfaces (Pt[(n-1) (111)x(110)]) orientation—Pt(553) with n = 5, Pt(554) n = 10, Pt(151514) n = 30), Pt(111) and Pt(110) single crystals in alkaline media was studied by cyclic voltammetry and Fourier transform infrared spectroscopy (FTIRS). The results suggest that under the conditions of the experiment, the methanol oxidation reaction follows a direct pathway with formaldehyde and formate as reaction intermediates. The combination of OHads and beryllium blocks the adsorption and oxidation of methanol on Pt(111), but appears to promote the complete oxidation of methanol to carbon dioxide/carbonate on Pt(110).",

keywords = "Electrocatalysis, Methanol oxidation, Platinum single crystals, Alkaline solution, beryllium",

author = "Gonzalo Garc{\'i}a and Chantal Stoffelsma and Paramaconi Rodriguez and Koper, {Marc T M}",

year = "2015",

month = jan,

day = "1",

doi = "10.1016/j.susc.2014.06.012",

language = "English",

volume = "631",

pages = "267--271",

journal = "Surface Science",

issn = "0039-6028",

publisher = "Elsevier",

}

TY - JOUR

T1 - Influence of beryllium cations on the electrochemical oxidation of methanol on stepped platinum surfaces in alkaline solution

AU - García, Gonzalo

AU - Stoffelsma, Chantal

AU - Rodriguez, Paramaconi

AU - Koper, Marc T M

PY - 2015/1/1

Y1 - 2015/1/1

N2 - The role of beryllium on the oxidation of methanol on Pt stepped surfaces (Pt[(n-1) (111)x(110)]) orientation—Pt(553) with n = 5, Pt(554) n = 10, Pt(151514) n = 30), Pt(111) and Pt(110) single crystals in alkaline media was studied by cyclic voltammetry and Fourier transform infrared spectroscopy (FTIRS). The results suggest that under the conditions of the experiment, the methanol oxidation reaction follows a direct pathway with formaldehyde and formate as reaction intermediates. The combination of OHads and beryllium blocks the adsorption and oxidation of methanol on Pt(111), but appears to promote the complete oxidation of methanol to carbon dioxide/carbonate on Pt(110).

AB - The role of beryllium on the oxidation of methanol on Pt stepped surfaces (Pt[(n-1) (111)x(110)]) orientation—Pt(553) with n = 5, Pt(554) n = 10, Pt(151514) n = 30), Pt(111) and Pt(110) single crystals in alkaline media was studied by cyclic voltammetry and Fourier transform infrared spectroscopy (FTIRS). The results suggest that under the conditions of the experiment, the methanol oxidation reaction follows a direct pathway with formaldehyde and formate as reaction intermediates. The combination of OHads and beryllium blocks the adsorption and oxidation of methanol on Pt(111), but appears to promote the complete oxidation of methanol to carbon dioxide/carbonate on Pt(110).

KW - Electrocatalysis

KW - Methanol oxidation

KW - Platinum single crystals

KW - Alkaline solution

KW - beryllium

UR - http://www.scopus.com/inward/record.url?scp=84912125961&partnerID=8YFLogxK

U2 - 10.1016/j.susc.2014.06.012

DO - 10.1016/j.susc.2014.06.012

M3 - Article

SN - 0039-6028

VL - 631

SP - 267

EP - 271

JO - Surface Science

JF - Surface Science

ER -

Influence of beryllium cations on the electrochemical oxidation of methanol on stepped platinum surfaces in alkaline solution

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Fingerprint

Cite this