Abstract

The adsorption and dissociation of carbon dioxide on a Ru(0001) single crystal surface was investigated by reflection–absorption infrared spectroscopy (RAIRS) and temperature-programmed desorption (TPD) spectroscopy for CO2 adsorbed at 85 K. RAIRS spectroscopy shows that the adsorption of CO2 on a Ru(0001) single crystal is partially dissociative, resulting in CO2 and CO. The CO vibrational mode was also observed to split into two distinct modes, indicating two general populations of CO present at the surface. Furthermore, a time-dependent blue-shift is observed, which is characteristic of increasing CO surface coverage. TPD showed that coverages of up to 0.3 ML were obtained, and no evidence for chemisorption of oxygen on ruthenium was found.
Original languageEnglish
Pages (from-to)6729-6735
Number of pages7
JournalJournal of physical chemistry
DOIs
StatePublished - 30 Mar 2017

Fingerprint

Adsorption
Temperature programmed desorption
Absorption spectroscopy
Infrared spectroscopy
Spectroscopy
Single crystal surfaces
Chemisorption
Ruthenium
Carbon dioxide
Oxygen

Keywords

  • IR-104268
  • METIS-321970

Cite this

@article{3fa6924246e1408eb110f6d7d92f95c3,
title = "Adsorption and Dissociation of CO2 on Ru (0001)",
abstract = "The adsorption and dissociation of carbon dioxide on a Ru(0001) single crystal surface was investigated by reflection–absorption infrared spectroscopy (RAIRS) and temperature-programmed desorption (TPD) spectroscopy for CO2 adsorbed at 85 K. RAIRS spectroscopy shows that the adsorption of CO2 on a Ru(0001) single crystal is partially dissociative, resulting in CO2 and CO. The CO vibrational mode was also observed to split into two distinct modes, indicating two general populations of CO present at the surface. Furthermore, a time-dependent blue-shift is observed, which is characteristic of increasing CO surface coverage. TPD showed that coverages of up to 0.3 ML were obtained, and no evidence for chemisorption of oxygen on ruthenium was found.",
keywords = "IR-104268, METIS-321970",
author = "Malgorzata Pachecka and Sturm, {Jacobus Marinus} and Lee, {Christopher James} and Frederik Bijkerk",
note = "Online first",
year = "2017",
month = "3",
doi = "10.1021/acs.jpcc.7b00021",
pages = "6729--6735",

}

TY - JOUR

T1 - Adsorption and Dissociation of CO2 on Ru (0001)

AU - Pachecka,Malgorzata

AU - Sturm,Jacobus Marinus

AU - Lee,Christopher James

AU - Bijkerk,Frederik

N1 - Online first

PY - 2017/3/30

Y1 - 2017/3/30

N2 - The adsorption and dissociation of carbon dioxide on a Ru(0001) single crystal surface was investigated by reflection–absorption infrared spectroscopy (RAIRS) and temperature-programmed desorption (TPD) spectroscopy for CO2 adsorbed at 85 K. RAIRS spectroscopy shows that the adsorption of CO2 on a Ru(0001) single crystal is partially dissociative, resulting in CO2 and CO. The CO vibrational mode was also observed to split into two distinct modes, indicating two general populations of CO present at the surface. Furthermore, a time-dependent blue-shift is observed, which is characteristic of increasing CO surface coverage. TPD showed that coverages of up to 0.3 ML were obtained, and no evidence for chemisorption of oxygen on ruthenium was found.

AB - The adsorption and dissociation of carbon dioxide on a Ru(0001) single crystal surface was investigated by reflection–absorption infrared spectroscopy (RAIRS) and temperature-programmed desorption (TPD) spectroscopy for CO2 adsorbed at 85 K. RAIRS spectroscopy shows that the adsorption of CO2 on a Ru(0001) single crystal is partially dissociative, resulting in CO2 and CO. The CO vibrational mode was also observed to split into two distinct modes, indicating two general populations of CO present at the surface. Furthermore, a time-dependent blue-shift is observed, which is characteristic of increasing CO surface coverage. TPD showed that coverages of up to 0.3 ML were obtained, and no evidence for chemisorption of oxygen on ruthenium was found.

KW - IR-104268

KW - METIS-321970

U2 - 10.1021/acs.jpcc.7b00021

DO - 10.1021/acs.jpcc.7b00021

M3 - Article

SP - 6729

EP - 6735

ER -