Carbon Dioxide Adsorption on V2O3(0001)

M. Abu Haija; Y. Romanyshyn; A. Uhl; H. Kuhlenbeck; H. J. Freund

doi:10.1007/s11244-017-0810-4

Carbon Dioxide Adsorption on V₂O₃(0001)

M. Abu Haija
, Y. Romanyshyn
, A. Uhl
, H. Kuhlenbeck
, H. J. Freund

Chemistry

Fritz Haber Inst. of Max Planck Soc.

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

11 Scopus citations

Abstract

The adsorption of carbon dioxide on epitaxially grown V ₂O ₃ layers on Au(111) has been studied with thermal desorption and infrared absorption spectroscopy. It is shown that the as-grown grown oxide layer does not react with carbon dioxide; the molecule binds weakly to the surface, stays intact and desorbs below 200 K. If the oxide is weakly reduced such that part or all of the oxygen atoms of the surface vanadyl layer is removed, then a surface carboxylate, i.e. CO2- bound to surface vanadium is formed. Part of the CO ₂ derived species decompose into O+CO upon annealing, with the oxygen atoms re-oxidizing the reduced oxide surface.

Original language	British English
Pages (from-to)	413-419
Number of pages	7
Journal	Topics in Catalysis
Volume	60
Issue number	6-7
DOIs	https://doi.org/10.1007/s11244-017-0810-4
State	Published - May 2017

Keywords

Adsorption
Carbon dioxide
Infrared absorption spectroscopy
Thermal desorption spectroscopy
Thin films
V O (0001)

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10.1007/s11244-017-0810-4

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title = "Carbon Dioxide Adsorption on V2O3(0001)",

abstract = "The adsorption of carbon dioxide on epitaxially grown V 2O 3 layers on Au(111) has been studied with thermal desorption and infrared absorption spectroscopy. It is shown that the as-grown grown oxide layer does not react with carbon dioxide; the molecule binds weakly to the surface, stays intact and desorbs below 200 K. If the oxide is weakly reduced such that part or all of the oxygen atoms of the surface vanadyl layer is removed, then a surface carboxylate, i.e. CO2- bound to surface vanadium is formed. Part of the CO 2 derived species decompose into O+CO upon annealing, with the oxygen atoms re-oxidizing the reduced oxide surface.",

keywords = "Adsorption, Carbon dioxide, Infrared absorption spectroscopy, Thermal desorption spectroscopy, Thin films, V O (0001)",

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doi = "10.1007/s11244-017-0810-4",

language = "British English",

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TY - JOUR

T1 - Carbon Dioxide Adsorption on V2O3(0001)

AU - Haija, M. Abu

AU - Romanyshyn, Y.

AU - Uhl, A.

AU - Kuhlenbeck, H.

AU - Freund, H. J.

PY - 2017/5

Y1 - 2017/5

N2 - The adsorption of carbon dioxide on epitaxially grown V 2O 3 layers on Au(111) has been studied with thermal desorption and infrared absorption spectroscopy. It is shown that the as-grown grown oxide layer does not react with carbon dioxide; the molecule binds weakly to the surface, stays intact and desorbs below 200 K. If the oxide is weakly reduced such that part or all of the oxygen atoms of the surface vanadyl layer is removed, then a surface carboxylate, i.e. CO2- bound to surface vanadium is formed. Part of the CO 2 derived species decompose into O+CO upon annealing, with the oxygen atoms re-oxidizing the reduced oxide surface.

AB - The adsorption of carbon dioxide on epitaxially grown V 2O 3 layers on Au(111) has been studied with thermal desorption and infrared absorption spectroscopy. It is shown that the as-grown grown oxide layer does not react with carbon dioxide; the molecule binds weakly to the surface, stays intact and desorbs below 200 K. If the oxide is weakly reduced such that part or all of the oxygen atoms of the surface vanadyl layer is removed, then a surface carboxylate, i.e. CO2- bound to surface vanadium is formed. Part of the CO 2 derived species decompose into O+CO upon annealing, with the oxygen atoms re-oxidizing the reduced oxide surface.

KW - Adsorption

KW - Carbon dioxide

KW - Infrared absorption spectroscopy

KW - Thermal desorption spectroscopy

KW - Thin films

KW - V O (0001)

UR - https://www.scopus.com/pages/publications/85019190931

U2 - 10.1007/s11244-017-0810-4

DO - 10.1007/s11244-017-0810-4

M3 - Article

AN - SCOPUS:85019190931

SN - 1022-5528

VL - 60

SP - 413

EP - 419

JO - Topics in Catalysis

JF - Topics in Catalysis

IS - 6-7

ER -

Carbon Dioxide Adsorption on V₂O₃(0001)

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Keywords

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