An XPD and ISS study of the (2 × 2)-(CO + K) coadsorption structure on Co(0001)

Jukka Vaari; J. Lahtinen; T. Vaara; Pekka Hautojärvi

doi:10.1016/0039-6028(95)00917-5

An XPD and ISS study of the (2 × 2)-(CO + K) coadsorption structure on Co(0001)

Jukka Vaari, J. Lahtinen, T. Vaara, Pekka Hautojärvi

Tutkimustuotos: Lehtiartikkeli › Article › Scientific › vertaisarvioitu

22 Sitaatiot (Scopus)

Abstrakti

We have studied the coadsorption of carbon monoxide and potassium on Co(OOOl) using XPS, TDS, LEED, XPD, and ISS. Potassium-induced dissociation of CO was not detected. Two ordered coadsorption structures were observed, namely (2 × 2)-(CO + K) and (2 × 2)-(2CO + K). The XPD results show that the CO molecules are adsorbed perpendicular to the surface. According to the ISS measurements the K atoms form the outermost layer of the coadsorption structure.

Alkuperäiskieli	Englanti
Sivut	1-10
Sivumäärä	10
Julkaisu	Surface Science
Vuosikerta	346
Numero	1-3
DOI - pysyväislinkit	https://doi.org/10.1016/0039-6028(95)00917-5
Tila	Julkaistu - 1 helmik. 1996
OKM-julkaisutyyppi	A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

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10.1016/0039-6028(95)00917-5

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@article{2766f1d2e3184d5cb09a6502fb806093,

title = "An XPD and ISS study of the (2 × 2)-(CO + K) coadsorption structure on Co(0001)",

abstract = "We have studied the coadsorption of carbon monoxide and potassium on Co(OOOl) using XPS, TDS, LEED, XPD, and ISS. Potassium-induced dissociation of CO was not detected. Two ordered coadsorption structures were observed, namely (2 × 2)-(CO + K) and (2 × 2)-(2CO + K). The XPD results show that the CO molecules are adsorbed perpendicular to the surface. According to the ISS measurements the K atoms form the outermost layer of the coadsorption structure.",

keywords = "Alkali metals, Carbon monoxide, Cobalt, Low energy ion scattering (LEIS), Low index single crystal surfaces, Surface structure, Thermal desorption spectroscopy, X-ray photoelectron spectroscopy",

author = "Jukka Vaari and J. Lahtinen and T. Vaara and Pekka Hautoj{\"a}rvi",

year = "1996",

month = feb,

day = "1",

doi = "10.1016/0039-6028(95)00917-5",

language = "English",

volume = "346",

pages = "1--10",

journal = "Surface Science",

issn = "0039-6028",

publisher = "Elsevier",

number = "1-3",

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TY - JOUR

T1 - An XPD and ISS study of the (2 × 2)-(CO + K) coadsorption structure on Co(0001)

AU - Vaari, Jukka

AU - Lahtinen, J.

AU - Vaara, T.

AU - Hautojärvi, Pekka

PY - 1996/2/1

Y1 - 1996/2/1

N2 - We have studied the coadsorption of carbon monoxide and potassium on Co(OOOl) using XPS, TDS, LEED, XPD, and ISS. Potassium-induced dissociation of CO was not detected. Two ordered coadsorption structures were observed, namely (2 × 2)-(CO + K) and (2 × 2)-(2CO + K). The XPD results show that the CO molecules are adsorbed perpendicular to the surface. According to the ISS measurements the K atoms form the outermost layer of the coadsorption structure.

AB - We have studied the coadsorption of carbon monoxide and potassium on Co(OOOl) using XPS, TDS, LEED, XPD, and ISS. Potassium-induced dissociation of CO was not detected. Two ordered coadsorption structures were observed, namely (2 × 2)-(CO + K) and (2 × 2)-(2CO + K). The XPD results show that the CO molecules are adsorbed perpendicular to the surface. According to the ISS measurements the K atoms form the outermost layer of the coadsorption structure.

KW - Alkali metals

KW - Carbon monoxide

KW - Cobalt

KW - Low energy ion scattering (LEIS)

KW - Low index single crystal surfaces

KW - Surface structure

KW - Thermal desorption spectroscopy

KW - X-ray photoelectron spectroscopy

UR - http://www.scopus.com/inward/record.url?scp=0030081426&partnerID=8YFLogxK

U2 - 10.1016/0039-6028(95)00917-5

DO - 10.1016/0039-6028(95)00917-5

M3 - Article

AN - SCOPUS:0030081426

SN - 0039-6028

VL - 346

SP - 1

EP - 10

JO - Surface Science

JF - Surface Science

IS - 1-3

ER -

An XPD and ISS study of the (2 × 2)-(CO + K) coadsorption structure on Co(0001)

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