The effects of gold and co-adsorbed carbon on the adsorption and thermal decomposition of acetic acid on Pd{111}

T G Owens; T E Jones; T C Q Noakes; P Bailey; Christopher John Baddeley

doi:10.1021/jp062988a

The effects of gold and co-adsorbed carbon on the adsorption and thermal decomposition of acetic acid on Pd{111}

T G Owens, T E Jones, T C Q Noakes, P Bailey, Christopher John Baddeley

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

23 Citations (Scopus)

Abstract

The growth and annealing behavior of ultrathin Au films on Pd {111} were monitored with scanning tunneling microscopy (STM) and medium energy ion scattering (MEIS). The adsorption of acetic acid on both clean and deliberately carbon-contaminated bimetallic surfaces was investigated with reflection absorption infrared spectroscopy (RAIRS) and temperature-programmed desorption (TPD). We report that the surface chemistry of acetic acid is strongly modified by the presence of Au in the bimetallic surface which acts both to stabilize adsorbed acetate and to decrease the tendency of acetic acid to decompose on adsorption to produce adsorbed carbon. The adsorption of acetic acid at 300 K is found to cause measurable segregation of Pd to the surface for all surface compositions tested.

Original language	English
Pages (from-to)	21152-21160
Number of pages	9
Journal	Journal of Physical Chemistry B
Volume	110
Issue number	42
DOIs	https://doi.org/10.1021/jp062988a
Publication status	Published - 26 Oct 2006

Keywords

ENERGY ION-SCATTERING
ADSORBATE-INDUCED SEGREGATION
AUTOCATALYTIC DECOMPOSITION
CU(110) SURFACES
OXIDATION
ACETATE
FTIR
AU
ACETALDEHYDE
OVERLAYERS

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10.1021/jp062988a

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title = "The effects of gold and co-adsorbed carbon on the adsorption and thermal decomposition of acetic acid on Pd{111}",

abstract = "The growth and annealing behavior of ultrathin Au films on Pd {111} were monitored with scanning tunneling microscopy (STM) and medium energy ion scattering (MEIS). The adsorption of acetic acid on both clean and deliberately carbon-contaminated bimetallic surfaces was investigated with reflection absorption infrared spectroscopy (RAIRS) and temperature-programmed desorption (TPD). We report that the surface chemistry of acetic acid is strongly modified by the presence of Au in the bimetallic surface which acts both to stabilize adsorbed acetate and to decrease the tendency of acetic acid to decompose on adsorption to produce adsorbed carbon. The adsorption of acetic acid at 300 K is found to cause measurable segregation of Pd to the surface for all surface compositions tested.",

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author = "Owens, {T G} and Jones, {T E} and Noakes, {T C Q} and P Bailey and Baddeley, {Christopher John}",

year = "2006",

month = oct,

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doi = "10.1021/jp062988a",

language = "English",

volume = "110",

pages = "21152--21160",

journal = "Journal of Physical Chemistry B",

issn = "1520-6106",

publisher = "American Chemical Society (ACS)",

number = "42",

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T1 - The effects of gold and co-adsorbed carbon on the adsorption and thermal decomposition of acetic acid on Pd{111}

AU - Owens, T G

AU - Jones, T E

AU - Noakes, T C Q

AU - Bailey, P

AU - Baddeley, Christopher John

PY - 2006/10/26

Y1 - 2006/10/26

N2 - The growth and annealing behavior of ultrathin Au films on Pd {111} were monitored with scanning tunneling microscopy (STM) and medium energy ion scattering (MEIS). The adsorption of acetic acid on both clean and deliberately carbon-contaminated bimetallic surfaces was investigated with reflection absorption infrared spectroscopy (RAIRS) and temperature-programmed desorption (TPD). We report that the surface chemistry of acetic acid is strongly modified by the presence of Au in the bimetallic surface which acts both to stabilize adsorbed acetate and to decrease the tendency of acetic acid to decompose on adsorption to produce adsorbed carbon. The adsorption of acetic acid at 300 K is found to cause measurable segregation of Pd to the surface for all surface compositions tested.

AB - The growth and annealing behavior of ultrathin Au films on Pd {111} were monitored with scanning tunneling microscopy (STM) and medium energy ion scattering (MEIS). The adsorption of acetic acid on both clean and deliberately carbon-contaminated bimetallic surfaces was investigated with reflection absorption infrared spectroscopy (RAIRS) and temperature-programmed desorption (TPD). We report that the surface chemistry of acetic acid is strongly modified by the presence of Au in the bimetallic surface which acts both to stabilize adsorbed acetate and to decrease the tendency of acetic acid to decompose on adsorption to produce adsorbed carbon. The adsorption of acetic acid at 300 K is found to cause measurable segregation of Pd to the surface for all surface compositions tested.

KW - ENERGY ION-SCATTERING

KW - ADSORBATE-INDUCED SEGREGATION

KW - AUTOCATALYTIC DECOMPOSITION

KW - CU(110) SURFACES

KW - OXIDATION

KW - ACETATE

KW - FTIR

KW - AU

KW - ACETALDEHYDE

KW - OVERLAYERS

UR - http://www.scopus.com/inward/record.url?scp=33751265360&partnerID=8YFLogxK

UR - http://pubs.acs.org/cgi-bin/article.cgi/jpcbfk/2006/110/i42/pdf/jp062988a.pdf

U2 - 10.1021/jp062988a

DO - 10.1021/jp062988a

M3 - Article

SN - 1520-6106

VL - 110

SP - 21152

EP - 21160

JO - Journal of Physical Chemistry B

JF - Journal of Physical Chemistry B

IS - 42

ER -

The effects of gold and co-adsorbed carbon on the adsorption and thermal decomposition of acetic acid on Pd{111}

Abstract

Keywords

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