Near-ambient-pressure x-ray photoelectron spectroscopy (NAP-XPS) and x-ray-induced Auger electron spectroscopy were used to characterize gas-phase carbon monoxide, CO(g). In this submission, the authors show the survey, valence band, O 1s, C 1s, O KLL Auger, and C KLL Auger spectra acquired using high-resolution synchrotron NAP-XPS with a photon energy of 647.08 eV.

  • Accession #: 01629

  • Technique: XPS, XAES

  • Host Material: Carbon monoxide, CO(g)

  • Instrument: SPECS Phoibos 150R6 NAP

  • Major Elements in Spectra: C, O

  • Minor Elements in Spectra: N/A

  • Published Spectra: 8

  • Spectra in Electronic Record: 8

  • Spectral Category: Reference

Near-ambient-pressure x-ray photoelectron spectroscopy (NAP-XPS) has been used extensively to examine the evolution of catalyst materials under reaction conditions and provide insights into reaction pathways and intermediates (Refs. 1 and 2). These studies are performed by illumination with lab-based light sources, including Mg Kα (1253.6 eV) and Al Kα (1486.7 eV), and synchrotron-based light sources, which have variable photon energies. The interpretation of the results can be difficult because of the observation of both gas-phase and surface species through the detection of both XPS and Auger electrons, which for observation by synchrotron-based light sources will change positions with respect to XPS peaks as the photon energy is adjusted. Furthermore, the much higher photon intensity of synchrotron-based light sources allows for high-resolution spectra to be obtained, which can resolve features that cannot be observed with lab-based light sources. Therefore, it is desirable to characterize gas-phase reactant and product species using both synchrotron-based and lab-based NAP-XPS (Ref. 3). Recently, common gas-phase reactants and products, including O2(g) and CO2(g), have been characterized using lab-based NAP-XPS (Refs. 3–5).

Carbon monoxide (CO) is an important molecule that is used industrially in the catalytic production of methanol and synthetic fuels, and also of considerable research interest is the CO oxidation to CO2 (Ref. 6). This work presents a complete collection of the survey, valence band, O 1s, C 1s, O KLL Auger, and C KLL Auger spectra acquired from the illumination of gas-phase CO with a high-intensity synchrotron-based light source (642.65 eV) using NAP-XPS. Furthermore, this full set was collected with identical beamline and analyzer settings for optimal comparison. Additionally, the O 1s and C 1s regions with higher resolution (2-eV pass energy) are vibrationally resolved (Refs. 7–12) but are complicated by the presence of shake-up satellites. The vibrationally resolved levels of the O 1s and C 1s region are designated by νx, where x is the integer value of the vibrational level (Ref. 10). The valence band binding energies (Refs. 13 and 14), XPS binding energies (Refs. 7–12 and 15–17), and Auger kinetic energies (Refs. 10 and 18) are in agreement with previous assignments. The satellite Auger lines of the O KLL and C KLL are designated by the nomenclature used by Moddeman et al. (Ref. 18).

The given analyzer resolution is based on the full-width at half maximum of the Ag 3d5/2 collected with the same beamline and analyzer settings. As such, it reflects the total experimental resolution.

  • Host Material: Carbon monoxide, CO(g)

  • CAS Registry #: 630-08-0

  • Host Material Characteristics: Homogeneous; gas; amorphous; dielectric; inorganic compound; other

  • Chemical Name: Carbon monoxide, CO(g)

  • Source: Matheson research purity (99.999%)

  • Host Composition: Carbon monoxide, CO(g)

  • Form: Gas

  • Structure: CO, C=O

  • History and Significance: CO is an important reactant in the production of methanol and synthetic fuels

  • As Received Condition: Compressed gas cylinder

  • Analyzed Region: Carbon monoxide gas molecules encountered by the x-ray beam

  • Ex Situ Preparation/Mounting: N/A

  • In Situ Preparation: A Ni-carbonyl trap was used to ensure pure CO was exposed to the chamber

  • Charge Control: 266 Pa CO

  • Temp. During Analysis: 300 K

  • Pressure During Analysis: 266 Pa

  • Pre-analysis Beam Exposure: 30 s

  • Manufacturer and Model: SPECS Phoibos 150R6 NAP

  • Analyzer Type: Spherical sector

  • Detector: Surface Concept 1D-DLD detector (model number: 1D-DLD64_2-150HV)

  • Number of Detector Elements: 100

  • Analyzer Mode: Constant pass energy

  • Throughput (T = EN): N = −1

  • Excitation Source Window: 100-nm-thick SiNx coated with 5 nm Cr and 10 nm Au (SPI supplies)

  • Excitation Source: Elliptically polarizing undulator at beamline 23-ID-2 of the National Synchrotron Light Source II (Ref. 19)

  • Source Energy: 647.08 eV

  • Source Strength: 1012–1013 photons/s

  • Source Beam Size: 16 × 70 μm2

  • Signal Mode: Multichannel direct

  • Incident Angle: N/A

  • Source-to-Analyzer Angle: 70°

  • Emission Angle: N/A

  • Specimen Azimuthal Angle: N/A

  • Acceptance Angle from Analyzer Axis: 22°

  • Analyzer Angular Acceptance Width: 44°

  • Energy Scale Correction: The energy scale was corrected for the work function of the detector and the photon energy. The work function of the detector was determined by setting the kinetic energy of the Ag M4NN transition of a clean reference Ag(111) sample to 357.81 eV (Ref. 20). The photon energy was determined by setting the Ag3d5/2 binding energy of a reference Ag(111) sample to 368.20 eV. This correction procedure yields the Fermi level of a reference Ag(111) crystal to be 0.00 eV.

  • Recommended Energy Scale Shift: 0 eV

  • Peak Shape and Background Method: N/A

  • Quantitation Method: N/A

SPECTRAL FEATURES TABLE

Spectrum ID #Element/TransitionPeak Energy
(eV)
Peak Width FWHM
(eV)
Peak Area
(eV × cts/s)
Sensitivity FactorConcentration
(at. %)
Peak Assignment
01629-01 Valence band 0–50 … … … … CO(g) 
01629-01 O KLL 499.2a … … … … CO(g) 
01629-01 C 1s 291.8 … … … … CO(g) 
01629-01 C KLL 254.8a … … … … CO(g) 
01629-01 O 1s 538.3 … … … … CO(g) 
01629-02 Valence band 9.80 … … … … CO(g), 3σ 
01629-02 Valence band 12.75 … … … … CO(g), 1π 
01629-02 Valence band 15.45 … … … … CO(g), 2σ 
01629-02 Valence band 34.55 … … … … CO(g), 1σ 
01629-03 O KLL 514.70a … … … … CO(g), A-8 
01629-03 O KLL 510.75a … … … … CO(g), A-10 
01629-03 O KLL 504.75a … … … … CO(g), B-1 
01629-03 O KLL 500.45a … … … … CO(g), B-4 
01629-03 O KLL 499.20a … … … … CO(g), B-5 
01629-03 O KLL 496.00a … … … … CO(g), B-7 
01629-03 O KLL 492.20a … … … … CO(g), B-9 
01629-03 O KLL 489.65a … … … … CO(g), B-11 
01629-03 O KLL 474.00a … … … … CO(g), C-2 
01629-04 C 1s 300.3 … … … … CO(g), shake up 
01629-04 C 1s 291.9 … … … … CO(g) 
01629-05 C 1s 291.82 … … … … CO(g), ν0 
01629-05 C 1s 292.11 … … … … CO(g), ν1 
01629-05 C 1s 292.41 … … … … CO(g), ν2 
01629-06 C KLL 258.35a … … … … CO(g), B-1 
01629-06 C KLL 256.80a … … … … CO(g), B-2 
01629-06 C KLL 254.75a … … … … CO(g), B-3 
01629-07 O 1s 546.6 … … … … CO(g), shake up 
01629-07 O 1s 538.3 … … … … CO(g) 
01629-08 O 1s 538.25 … … … … CO(g), ν0 
01629-08 O 1s 538.46 … … … … CO(g), ν1 
Spectrum ID #Element/TransitionPeak Energy
(eV)
Peak Width FWHM
(eV)
Peak Area
(eV × cts/s)
Sensitivity FactorConcentration
(at. %)
Peak Assignment
01629-01 Valence band 0–50 … … … … CO(g) 
01629-01 O KLL 499.2a … … … … CO(g) 
01629-01 C 1s 291.8 … … … … CO(g) 
01629-01 C KLL 254.8a … … … … CO(g) 
01629-01 O 1s 538.3 … … … … CO(g) 
01629-02 Valence band 9.80 … … … … CO(g), 3σ 
01629-02 Valence band 12.75 … … … … CO(g), 1π 
01629-02 Valence band 15.45 … … … … CO(g), 2σ 
01629-02 Valence band 34.55 … … … … CO(g), 1σ 
01629-03 O KLL 514.70a … … … … CO(g), A-8 
01629-03 O KLL 510.75a … … … … CO(g), A-10 
01629-03 O KLL 504.75a … … … … CO(g), B-1 
01629-03 O KLL 500.45a … … … … CO(g), B-4 
01629-03 O KLL 499.20a … … … … CO(g), B-5 
01629-03 O KLL 496.00a … … … … CO(g), B-7 
01629-03 O KLL 492.20a … … … … CO(g), B-9 
01629-03 O KLL 489.65a … … … … CO(g), B-11 
01629-03 O KLL 474.00a … … … … CO(g), C-2 
01629-04 C 1s 300.3 … … … … CO(g), shake up 
01629-04 C 1s 291.9 … … … … CO(g) 
01629-05 C 1s 291.82 … … … … CO(g), ν0 
01629-05 C 1s 292.11 … … … … CO(g), ν1 
01629-05 C 1s 292.41 … … … … CO(g), ν2 
01629-06 C KLL 258.35a … … … … CO(g), B-1 
01629-06 C KLL 256.80a … … … … CO(g), B-2 
01629-06 C KLL 254.75a … … … … CO(g), B-3 
01629-07 O 1s 546.6 … … … … CO(g), shake up 
01629-07 O 1s 538.3 … … … … CO(g) 
01629-08 O 1s 538.25 … … … … CO(g), ν0 
01629-08 O 1s 538.46 … … … … CO(g), ν1 
a

Peak energy value indicated as kinetic energy.

ANALYZER CALIBRATION TABLE

Spectrum ID #Element/TransitionPeak Energy
(eV)
Peak Width FWHM
(eV)
Peak Area
(eV × cts/s)
Sensitivity FactorConcentration
(at. %)
Peak Assignment
… Ag 3d5/2 368.20 0.46 eV 1 177 774.1 … … … 
Spectrum ID #Element/TransitionPeak Energy
(eV)
Peak Width FWHM
(eV)
Peak Area
(eV × cts/s)
Sensitivity FactorConcentration
(at. %)
Peak Assignment
… Ag 3d5/2 368.20 0.46 eV 1 177 774.1 … … … 

GUIDE TO FIGURES

Spectrum (Accession) #Spectral RegionVoltage ShiftMultiplierBaselineComment #
01629-01 Survey From CO(g) 
01629-02 Valence band From CO(g) 
01629-03 O KLL From CO(g) 
01629-04 C 1s From CO(g) 
01629-05 C 1s From CO(g) 
01629-06 C KLL From CO(g) 
01629-07 O 1s From CO(g) 
01629-08 O 1s From CO(g) 
Spectrum (Accession) #Spectral RegionVoltage ShiftMultiplierBaselineComment #
01629-01 Survey From CO(g) 
01629-02 Valence band From CO(g) 
01629-03 O KLL From CO(g) 
01629-04 C 1s From CO(g) 
01629-05 C 1s From CO(g) 
01629-06 C KLL From CO(g) 
01629-07 O 1s From CO(g) 
01629-08 O 1s From CO(g) 

Accession #01629-01
Host Material Carbon monoxide, CO(g) 
Technique XPS/XAES 
Spectral Region Survey 
Instrument SPECS Phoibos 150R6 NAP 
Excitation Source Elliptically polarizing undulator at beamline 23-ID-2 of the National Synchrotron Light Source II 
Source Energy 647.08 eV 
Source Strength 1012–1013 photon/s 
Source Size 16 × 70 μm2 
Analyzer Type Spherical sector analyzer 
Incident Angle N/A 
Emission Angle N/A 
Analyzer Pass Energy 10 eV 
Analyzer Resolution 0.46 eV 
Total Signal Accumulation Time 260 s 
Total Elapsed Time 300 s 
Number of Scans 
Effective Detector Width 50 eV 
Accession #01629-01
Host Material Carbon monoxide, CO(g) 
Technique XPS/XAES 
Spectral Region Survey 
Instrument SPECS Phoibos 150R6 NAP 
Excitation Source Elliptically polarizing undulator at beamline 23-ID-2 of the National Synchrotron Light Source II 
Source Energy 647.08 eV 
Source Strength 1012–1013 photon/s 
Source Size 16 × 70 μm2 
Analyzer Type Spherical sector analyzer 
Incident Angle N/A 
Emission Angle N/A 
Analyzer Pass Energy 10 eV 
Analyzer Resolution 0.46 eV 
Total Signal Accumulation Time 260 s 
Total Elapsed Time 300 s 
Number of Scans 
Effective Detector Width 50 eV 

Accession #01629-01
Host Material Carbon monoxide, CO(g) 
Technique XPS/XAES 
Spectral Region Survey 
Instrument SPECS Phoibos 150R6 NAP 
Excitation Source Elliptically polarizing undulator at beamline 23-ID-2 of the National Synchrotron Light Source II 
Source Energy 647.08 eV 
Source Strength 1012–1013 photon/s 
Source Size 16 × 70 μm2 
Analyzer Type Spherical sector analyzer 
Incident Angle N/A 
Emission Angle N/A 
Analyzer Pass Energy 10 eV 
Analyzer Resolution 0.46 eV 
Total Signal Accumulation Time 260 s 
Total Elapsed Time 300 s 
Number of Scans 
Effective Detector Width 50 eV 
Accession #01629-01
Host Material Carbon monoxide, CO(g) 
Technique XPS/XAES 
Spectral Region Survey 
Instrument SPECS Phoibos 150R6 NAP 
Excitation Source Elliptically polarizing undulator at beamline 23-ID-2 of the National Synchrotron Light Source II 
Source Energy 647.08 eV 
Source Strength 1012–1013 photon/s 
Source Size 16 × 70 μm2 
Analyzer Type Spherical sector analyzer 
Incident Angle N/A 
Emission Angle N/A 
Analyzer Pass Energy 10 eV 
Analyzer Resolution 0.46 eV 
Total Signal Accumulation Time 260 s 
Total Elapsed Time 300 s 
Number of Scans 
Effective Detector Width 50 eV 

Close modal

  • Accession #:01629-02

  • Host Material: Carbon monoxide, CO(g)

  • Technique: XPS

  • Spectral Region: Valence band

  • Instrument: Specs Phoibos 150R6 NAP

  • Excitation Source: Elliptically polarizing undulator at beamline 23-ID-2 of the National Synchrotron Light Source II

  • Source Energy: 647.08 eV

  • Source Strength: 1012–1013 photon/s

  • Source Size: 16 × 70 μm2

  • Analyzer Type: Spherical sector

  • Incident Angle: N/A

  • Emission Angle: N/A

  • Analyzer Pass Energy: 10 eV

  • Analyzer Resolution: 0.46 eV

  • Total Signal Accumulation Time: 450 s

  • Total Elapsed Time: 550 s

  • Number of Scans: 5

  • Effective Detector Width: 5 eV

  • Accession #:01629-02

  • Host Material: Carbon monoxide, CO(g)

  • Technique: XPS

  • Spectral Region: Valence band

  • Instrument: Specs Phoibos 150R6 NAP

  • Excitation Source: Elliptically polarizing undulator at beamline 23-ID-2 of the National Synchrotron Light Source II

  • Source Energy: 647.08 eV

  • Source Strength: 1012–1013 photon/s

  • Source Size: 16 × 70 μm2

  • Analyzer Type: Spherical sector

  • Incident Angle: N/A

  • Emission Angle: N/A

  • Analyzer Pass Energy: 10 eV

  • Analyzer Resolution: 0.46 eV

  • Total Signal Accumulation Time: 450 s

  • Total Elapsed Time: 550 s

  • Number of Scans: 5

  • Effective Detector Width: 5 eV

Close modal

  • Accession #:01629-03

  • Host Material: Carbon monoxide, CO(g)

  • Technique: XAES

  • Spectral Region: O KLL

  • Instrument: Specs Phoibos 150R6 NAP

  • Excitation Source: Elliptically polarizing undulator at beamline 23-ID-2 of the National Synchrotron Light Source II

  • Source Energy: 647.08 eV

  • Source Strength: 1012–1013 photon/s

  • Source Size: 16 × 70 μm2

  • Analyzer Type: Spherical sector

  • Incident Angle: N/A

  • Emission Angle: N/A

  • Analyzer Pass Energy: 10 eV

  • Analyzer Resolution: 0.46 eV

  • Total Signal Accumulation Time: 700 s

  • Total Elapsed Time: 800 s

  • Number of Scans: 5

  • Effective Detector Width: 5 eV

  • Accession #:01629-03

  • Host Material: Carbon monoxide, CO(g)

  • Technique: XAES

  • Spectral Region: O KLL

  • Instrument: Specs Phoibos 150R6 NAP

  • Excitation Source: Elliptically polarizing undulator at beamline 23-ID-2 of the National Synchrotron Light Source II

  • Source Energy: 647.08 eV

  • Source Strength: 1012–1013 photon/s

  • Source Size: 16 × 70 μm2

  • Analyzer Type: Spherical sector

  • Incident Angle: N/A

  • Emission Angle: N/A

  • Analyzer Pass Energy: 10 eV

  • Analyzer Resolution: 0.46 eV

  • Total Signal Accumulation Time: 700 s

  • Total Elapsed Time: 800 s

  • Number of Scans: 5

  • Effective Detector Width: 5 eV

Close modal

  • Accession #:01629-04

  • Host Material: Carbon monoxide, CO(g)

  • Technique: XPS

  • Spectral Region: C 1s

  • Instrument: Specs Phoibos 150R6 NAP

  • Excitation Source: Elliptically polarizing undulator at beamline 23-ID-2 of the National Synchrotron Light Source II

  • Source Energy: 647.08 eV

  • Source Strength: 1012–1013 photon/s

  • Source Size: 16 × 70 μm2

  • Analyzer Type: Spherical sector

  • Incident Angle: N/A

  • Emission Angle: N/A

  • Analyzer Pass Energy: 10 eV

  • Analyzer Resolution: 0.46 eV

  • Total Signal Accumulation Time: 500 s

  • Total Elapsed Time: 600 s

  • Number of Scans: 5

  • Effective Detector Width: 5 eV

  • Accession #:01629-04

  • Host Material: Carbon monoxide, CO(g)

  • Technique: XPS

  • Spectral Region: C 1s

  • Instrument: Specs Phoibos 150R6 NAP

  • Excitation Source: Elliptically polarizing undulator at beamline 23-ID-2 of the National Synchrotron Light Source II

  • Source Energy: 647.08 eV

  • Source Strength: 1012–1013 photon/s

  • Source Size: 16 × 70 μm2

  • Analyzer Type: Spherical sector

  • Incident Angle: N/A

  • Emission Angle: N/A

  • Analyzer Pass Energy: 10 eV

  • Analyzer Resolution: 0.46 eV

  • Total Signal Accumulation Time: 500 s

  • Total Elapsed Time: 600 s

  • Number of Scans: 5

  • Effective Detector Width: 5 eV

Close modal

  • Accession #:01629-05

  • Host Material: Carbon monoxide, CO(g)

  • Technique: XPS

  • Spectral Region: C 1s

  • Instrument: Specs Phoibos 150R6 NAP

  • Excitation Source: Elliptically polarizing undulator at beamline 23-ID-2 of the National Synchrotron Light Source II

  • Source Energy: 647.08 eV

  • Source Strength: 1012–1013 photon/s

  • Source Size: 16 × 70 μm2

  • Analyzer Type: Spherical sector

  • Incident Angle: N/A

  • Emission Angle: N/A

  • Analyzer Pass Energy: 2 eV

  • Analyzer Resolution: 0.42 eV

  • Total Signal Accumulation Time: 300 s

  • Total Elapsed Time: 500 s

  • Number of Scans: 10

  • Effective Detector Width: 1 eV

  • Accession #:01629-05

  • Host Material: Carbon monoxide, CO(g)

  • Technique: XPS

  • Spectral Region: C 1s

  • Instrument: Specs Phoibos 150R6 NAP

  • Excitation Source: Elliptically polarizing undulator at beamline 23-ID-2 of the National Synchrotron Light Source II

  • Source Energy: 647.08 eV

  • Source Strength: 1012–1013 photon/s

  • Source Size: 16 × 70 μm2

  • Analyzer Type: Spherical sector

  • Incident Angle: N/A

  • Emission Angle: N/A

  • Analyzer Pass Energy: 2 eV

  • Analyzer Resolution: 0.42 eV

  • Total Signal Accumulation Time: 300 s

  • Total Elapsed Time: 500 s

  • Number of Scans: 10

  • Effective Detector Width: 1 eV

Close modal

  • Accession #:01629-06

  • Host Material: Carbon monoxide, CO(g)

  • Technique: XAES

  • Spectral Region: C KLL

  • Instrument: Specs Phoibos 150R6 NAP

  • Excitation Source: Elliptically polarizing undulator at beamline 23-ID-2 of the National Synchrotron Light Source II

  • Source Energy: 647.08 eV

  • Source Strength: 1012–1013 photon/s

  • Source Size: 16 × 70 μm2

  • Analyzer Type: Spherical sector

  • Incident Angle: N/A

  • Emission Angle: N/A

  • Analyzer Pass Energy: 10 eV

  • Analyzer Resolution: 0.46 eV

  • Total Signal Accumulation Time: 200 s

  • Total Elapsed Time: 300 s

  • Number of Scans: 5

  • Effective Detector Width: 5 eV

  • Accession #:01629-06

  • Host Material: Carbon monoxide, CO(g)

  • Technique: XAES

  • Spectral Region: C KLL

  • Instrument: Specs Phoibos 150R6 NAP

  • Excitation Source: Elliptically polarizing undulator at beamline 23-ID-2 of the National Synchrotron Light Source II

  • Source Energy: 647.08 eV

  • Source Strength: 1012–1013 photon/s

  • Source Size: 16 × 70 μm2

  • Analyzer Type: Spherical sector

  • Incident Angle: N/A

  • Emission Angle: N/A

  • Analyzer Pass Energy: 10 eV

  • Analyzer Resolution: 0.46 eV

  • Total Signal Accumulation Time: 200 s

  • Total Elapsed Time: 300 s

  • Number of Scans: 5

  • Effective Detector Width: 5 eV

Close modal

  • Accession #:01629-07

  • Host Material: Carbon monoxide, CO(g)

  • Technique: XPS

  • Spectral Region: O 1s

  • Instrument: Specs Phoibos 150R6 NAP

  • Excitation Source: Elliptically polarizing undulator at beamline 23-ID-2 of the National Synchrotron Light Source II

  • Source Energy: 647.08 eV

  • Source Strength: 1012–1013 photon/s

  • Source Size: 16 × 70 μm2

  • Analyzer Type: Spherical sector

  • Incident Angle: N/A

  • Emission Angle: N/A

  • Analyzer Pass Energy: 10 eV

  • Analyzer Resolution: 0.46 eV

  • Total Signal Accumulation Time: 350 s

  • Total Elapsed Time: 550 s

  • Number of Scans: 10

  • Effective Detector Width: 5 eV

  • Accession #:01629-07

  • Host Material: Carbon monoxide, CO(g)

  • Technique: XPS

  • Spectral Region: O 1s

  • Instrument: Specs Phoibos 150R6 NAP

  • Excitation Source: Elliptically polarizing undulator at beamline 23-ID-2 of the National Synchrotron Light Source II

  • Source Energy: 647.08 eV

  • Source Strength: 1012–1013 photon/s

  • Source Size: 16 × 70 μm2

  • Analyzer Type: Spherical sector

  • Incident Angle: N/A

  • Emission Angle: N/A

  • Analyzer Pass Energy: 10 eV

  • Analyzer Resolution: 0.46 eV

  • Total Signal Accumulation Time: 350 s

  • Total Elapsed Time: 550 s

  • Number of Scans: 10

  • Effective Detector Width: 5 eV

Close modal

  • Accession #:01629-08

  • Host Material: Carbon monoxide, CO(g)

  • Technique: XPS

  • Spectral Region: O 1s

  • Instrument: Specs Phoibos 150R6 NAP

  • Excitation Source: Elliptically polarizing undulator at beamline 23-ID-2 of the National Synchrotron Light Source II

  • Source Energy: 647.08 eV

  • Source Strength: 1012–1013 photon/s

  • Source Size: 16 × 70 μm2

  • Analyzer Type: Spherical sector

  • Incident Angle: N/A

  • Emission Angle: N/A

  • Analyzer Pass Energy: 2 eV

  • Analyzer Resolution: 0.42 eV

  • Total Signal Accumulation Time: 500 s

  • Total Elapsed Time: 700 s

  • Number of Scans: 10

  • Effective Detector Width: 1 eV

  • Accession #:01629-08

  • Host Material: Carbon monoxide, CO(g)

  • Technique: XPS

  • Spectral Region: O 1s

  • Instrument: Specs Phoibos 150R6 NAP

  • Excitation Source: Elliptically polarizing undulator at beamline 23-ID-2 of the National Synchrotron Light Source II

  • Source Energy: 647.08 eV

  • Source Strength: 1012–1013 photon/s

  • Source Size: 16 × 70 μm2

  • Analyzer Type: Spherical sector

  • Incident Angle: N/A

  • Emission Angle: N/A

  • Analyzer Pass Energy: 2 eV

  • Analyzer Resolution: 0.42 eV

  • Total Signal Accumulation Time: 500 s

  • Total Elapsed Time: 700 s

  • Number of Scans: 10

  • Effective Detector Width: 1 eV

Close modal

The staff at the IOS beamline, especially Iradwikanari Waluyo and Adrian Hunt, are gratefully acknowledged for their support. This research used resources of the IOS (23-ID-2) beamline of the National Synchrotron Light Source II and the Center for Functional Nanomaterials, which are U.S. Department of Energy (DOE) User Facilities at Brookhaven National Laboratory operated under Contract No. DE-SC0012704. This work was supported as part of the Integrated Mesoscale Architectures for Sustainable Catalysis, an Energy Frontier Research Center funded by the U.S. Department of Energy, Office of Science, Basic Energy Sciences, under Award No. DE-SC0012573.

1.
M.
Salmeron
and
R.
Schlögl
,
Surf. Sci. Rep.
63
,
169
(
2008
).
2.
3.
D. I.
Patel
 et al 
Surf. Sci. Spectra
26
,
016801
(
2019
).
4.
T. G.
Avval
,
S.
Chatterjee
,
S.
Bahr
,
P.
Dietrich
,
M.
Meyer
,
A.
Thißen
, and
M. R.
Linford
,
Surf. Sci. Spectra
26
,
014022
(
2019
).
5.
T. G.
Avval
,
S.
Chatterjee
,
G. T.
Hodges
,
S.
Bahr
,
P.
Dietrich
,
M.
Meyer
,
A.
Thißen
, and
M. R.
Linford
,
Surf. Sci. Spectra
26
,
014021
(
2019
).
6.
M. A.
Vannice
,
Catalytic Activation of Carbon Monoxide
(
American Chemical Society
,
Washington
,
1981
).
7.
B.
Kempgens
,
K.
Maier
,
A.
Kivimäki
,
H. M.
Köppe
,
M.
Neeb
,
M. N.
Piancastelli
,
U.
Hergenhahn
, and
A. M.
Bradshaw
,
J. Phys. B
30
,
L741
(
1997
).
8.
D. A.
Mistrov
 et al 
Phys. Rev. A
68
,
5
(
2003
).
9.
T.
Jahnke
 et al 
Phys. Rev. Lett.
93
,
083002
(
2004
).
10.
P.
Bolognesi
,
R.
Püttner
, and
L.
Avaldi
,
Chem. Phys. Lett.
464
,
21
(
2008
).
11.
E.
Kukk
 et al 
J. Phys. Conf. Ser.
488
,
9
(
2014
).
12.
E.
Kukk
 et al 
Phys. Rev. A
95
,
042509
(
2017
).
13.
P. R.
Norton
,
R. L.
Tapping
,
H. P.
Broida
,
J. W.
Gadzuk
, and
B. J.
Waclawski
,
Chem. Phys. Lett.
53
,
465
(
1978
).
14.
J. A.
López-Domínguez
,
D.
Hardy
,
A.
Das
,
E. D.
Poliakoff
,
A.
Aguilar
, and
R. R.
Lucchese
,
J. Electron Spectros. Relat. Phenomena
185
,
211
(
2012
).
15.
T.
Hatamoto
 et al 
J. Electron Spectros. Relat. Phenomena
155
,
54
(
2007
).
16.
T. X.
Carroll
,
K. J.
Børve
,
L. J.
Sæthre
,
J. D.
Bozek
,
E.
Kukk
,
J. A.
Hahne
, and
T. D.
Thomas
,
J. Chem. Phys.
116
,
10221
(
2002
).
17.
M.
Ehara
 et al 
J. Chem. Phys.
125
, (
2006
).
18.
W. E.
Moddeman
,
T. A.
Carlson
,
M. O.
Krause
,
B. P.
Pullen
,
W. E.
Bull
, and
G. K.
Schweitzer
,
J. Chem. Phys.
55
,
2317
(
1971
).
19.
C.
Sánchez-Hanke
,
S. L.
Hulbert
,
D.
Shapiro
, and
R.
Reininger
,
J. Phys. Conf. Ser.
425
,
152017
(
2013
).
20.
M. P.
Seah
,
G. C.
Smith
, and
M. T.
Anthony
,
Surf. Interface Anal.
15
,
293
(
1990
).

Supplementary Material