Study of carbon monoxide adsorption and oxidation on Pt(111) by using an electrochemical impinging jet cell

Mikael Bergelin; Feliu J M; Mikael Wasberg

doi:10.1016/S0013-4686(98)00210-2

Study of carbon monoxide adsorption and oxidation on Pt(111) by using an electrochemical impinging jet cell

Mikael Bergelin, Feliu J M, Mikael Wasberg

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

27 Citations (Scopus)

Abstract

An impinging jet electrochem. flow cell developed for use with bead type electrodes was successfully employed in a surface structure sensitive study involving the processes of CO adsorption and oxidn. on Pt(111) in 1.0 mol dm-3 H2SO4 and HClO4. The flow cell enabled straightforward CO coverage control by means of varying the dosing time. Anion and hydrogen displacement charge curves with high potential resoln. were obtained by means of CO adsorption and an electrolyte dependent fine structure was found. During the dosing of the electrolyte dissolved CO in the potential range 700-800 mV (vs. RHE) a slow delayed oxidn. of adsorbed CO was noted and interpreted as being due to adsorption competition between CO and an oxygen contg. species. A novel anion-anion displacement method was developed in which adsorbed bisulfate was replaced by perchlorate or water. The neg. current transient obtained indicated desorption of bisulfate.

Original language	Undefined/Unknown
Pages (from-to)	1069–1075
Journal	Electrochimica Acta
Volume	44
Issue number	6-7
DOIs	https://doi.org/10.1016/S0013-4686(98)00210-2
Publication status	Published - 1998
MoE publication type	A1 Journal article-refereed

Access to Document

10.1016/S0013-4686(98)00210-2

Cite this

@article{87026b7f80d9417e8ece761ad685495b,

title = "Study of carbon monoxide adsorption and oxidation on Pt(111) by using an electrochemical impinging jet cell",

abstract = "An impinging jet electrochem. flow cell developed for use with bead type electrodes was successfully employed in a surface structure sensitive study involving the processes of CO adsorption and oxidn. on Pt(111) in 1.0 mol dm-3 H2SO4 and HClO4. The flow cell enabled straightforward CO coverage control by means of varying the dosing time. Anion and hydrogen displacement charge curves with high potential resoln. were obtained by means of CO adsorption and an electrolyte dependent fine structure was found. During the dosing of the electrolyte dissolved CO in the potential range 700-800 mV (vs. RHE) a slow delayed oxidn. of adsorbed CO was noted and interpreted as being due to adsorption competition between CO and an oxygen contg. species. A novel anion-anion displacement method was developed in which adsorbed bisulfate was replaced by perchlorate or water. The neg. current transient obtained indicated desorption of bisulfate.",

author = "Mikael Bergelin and {J M}, Feliu and Mikael Wasberg",

year = "1998",

doi = "10.1016/S0013-4686(98)00210-2",

language = "Odefinierat/ok{\"a}nt",

volume = "44",

pages = "1069–1075",

journal = "Electrochimica Acta",

issn = "0013-4686",

publisher = "Elsevier",

number = "6-7",

}

TY - JOUR

T1 - Study of carbon monoxide adsorption and oxidation on Pt(111) by using an electrochemical impinging jet cell

AU - Bergelin, Mikael

AU - J M, Feliu

AU - Wasberg, Mikael

PY - 1998

Y1 - 1998

N2 - An impinging jet electrochem. flow cell developed for use with bead type electrodes was successfully employed in a surface structure sensitive study involving the processes of CO adsorption and oxidn. on Pt(111) in 1.0 mol dm-3 H2SO4 and HClO4. The flow cell enabled straightforward CO coverage control by means of varying the dosing time. Anion and hydrogen displacement charge curves with high potential resoln. were obtained by means of CO adsorption and an electrolyte dependent fine structure was found. During the dosing of the electrolyte dissolved CO in the potential range 700-800 mV (vs. RHE) a slow delayed oxidn. of adsorbed CO was noted and interpreted as being due to adsorption competition between CO and an oxygen contg. species. A novel anion-anion displacement method was developed in which adsorbed bisulfate was replaced by perchlorate or water. The neg. current transient obtained indicated desorption of bisulfate.

AB - An impinging jet electrochem. flow cell developed for use with bead type electrodes was successfully employed in a surface structure sensitive study involving the processes of CO adsorption and oxidn. on Pt(111) in 1.0 mol dm-3 H2SO4 and HClO4. The flow cell enabled straightforward CO coverage control by means of varying the dosing time. Anion and hydrogen displacement charge curves with high potential resoln. were obtained by means of CO adsorption and an electrolyte dependent fine structure was found. During the dosing of the electrolyte dissolved CO in the potential range 700-800 mV (vs. RHE) a slow delayed oxidn. of adsorbed CO was noted and interpreted as being due to adsorption competition between CO and an oxygen contg. species. A novel anion-anion displacement method was developed in which adsorbed bisulfate was replaced by perchlorate or water. The neg. current transient obtained indicated desorption of bisulfate.

U2 - 10.1016/S0013-4686(98)00210-2

DO - 10.1016/S0013-4686(98)00210-2

M3 - Artikel

SN - 0013-4686

VL - 44

SP - 1069

EP - 1075

JO - Electrochimica Acta

JF - Electrochimica Acta

IS - 6-7

ER -