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Title: CO adsorption on Pd(100) studied by multimodal ambient pressure X-ray photoelectron and infrared reflection absorption spectroscopies

The adsorption of CO on Pd(100) was investigated using simultaneous ambient pressure X-ray photoelectron spectroscopy (APXPS) and infrared reflection absorption infrared spectroscopy (IRRAS). The measurements were performed as a function of CO partial pressures from ultra-high vacuum to 0.5 Torr. Total CO coverages estimated from the complementary APXPS and IRRAS measurements are in good agreement. A signal for atop CO, which is uncommon for Pd(100), was observed in the IRRAS data and was used to identify the C 1 s binding energy of this species. Discerning this binding configuration of CO on the Pd(100) surface at elevated pressures has significance for catalytic reactions involving CO, where bridging CO is often the only configuration considered. In conclusion, we also detail the combined APXPS/IRRAS instrumentation and discuss ways to improve these multimodal measurements, which should have wide applicability across many areas of surface and interface science.
Authors:
 [1] ;  [1] ;  [1] ;  [2] ;  [1] ;  [1] ;  [3] ;  [1]
  1. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  2. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Univ. of Maryland, College Park, MD (United States)
  3. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Max Planck Institute for Iron Research, Dusseldorf (Germany)
Publication Date:
Grant/Contract Number:
AC02-05CH11231
Type:
Accepted Manuscript
Journal Name:
Surface Science
Additional Journal Information:
Journal Volume: 665; Journal Issue: C; Related Information: © 2017; Journal ID: ISSN 0039-6028
Publisher:
Elsevier
Research Org:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; Bridging CO; Atop CO; Surface coverage; IRRAS; APXPS
OSTI Identifier:
1465418

Head, Ashley R., Karslıoǧlu, Osman, Gerber, Timm, Yu, Yi, Trotochaud, Lena, Raso, Joseph, Kerger, Philipp, and Bluhm, Hendrik. CO adsorption on Pd(100) studied by multimodal ambient pressure X-ray photoelectron and infrared reflection absorption spectroscopies. United States: N. p., Web. doi:10.1016/j.susc.2017.08.009.
Head, Ashley R., Karslıoǧlu, Osman, Gerber, Timm, Yu, Yi, Trotochaud, Lena, Raso, Joseph, Kerger, Philipp, & Bluhm, Hendrik. CO adsorption on Pd(100) studied by multimodal ambient pressure X-ray photoelectron and infrared reflection absorption spectroscopies. United States. doi:10.1016/j.susc.2017.08.009.
Head, Ashley R., Karslıoǧlu, Osman, Gerber, Timm, Yu, Yi, Trotochaud, Lena, Raso, Joseph, Kerger, Philipp, and Bluhm, Hendrik. 2017. "CO adsorption on Pd(100) studied by multimodal ambient pressure X-ray photoelectron and infrared reflection absorption spectroscopies". United States. doi:10.1016/j.susc.2017.08.009. https://www.osti.gov/servlets/purl/1465418.
@article{osti_1465418,
title = {CO adsorption on Pd(100) studied by multimodal ambient pressure X-ray photoelectron and infrared reflection absorption spectroscopies},
author = {Head, Ashley R. and Karslıoǧlu, Osman and Gerber, Timm and Yu, Yi and Trotochaud, Lena and Raso, Joseph and Kerger, Philipp and Bluhm, Hendrik},
abstractNote = {The adsorption of CO on Pd(100) was investigated using simultaneous ambient pressure X-ray photoelectron spectroscopy (APXPS) and infrared reflection absorption infrared spectroscopy (IRRAS). The measurements were performed as a function of CO partial pressures from ultra-high vacuum to 0.5 Torr. Total CO coverages estimated from the complementary APXPS and IRRAS measurements are in good agreement. A signal for atop CO, which is uncommon for Pd(100), was observed in the IRRAS data and was used to identify the C 1 s binding energy of this species. Discerning this binding configuration of CO on the Pd(100) surface at elevated pressures has significance for catalytic reactions involving CO, where bridging CO is often the only configuration considered. In conclusion, we also detail the combined APXPS/IRRAS instrumentation and discuss ways to improve these multimodal measurements, which should have wide applicability across many areas of surface and interface science.},
doi = {10.1016/j.susc.2017.08.009},
journal = {Surface Science},
number = C,
volume = 665,
place = {United States},
year = {2017},
month = {8}
}