Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

AP-XPS Study of the Reaction of O2 and CO2 with Zn–Au(111) Surface Alloys: Activation of O–O/C–O Bonds and the Formation of ZnO

Journal Article · · Journal of Physical Chemistry. C
 [1];  [2];  [3];  [3];  [1]
  1. Brookhaven National Laboratory (BNL), Upton, NY (United States)
  2. Brookhaven National Laboratory (BNL), Upton, NY (United States); Pohang Univ. of Science and Technology (POSTECH) (Korea, Republic of). Pohang Light Source II
  3. Brookhaven National Laboratory (BNL), Upton, NY (United States). National Synchrotron Light Source II (NSLS-II)

Synchrotron-based ambient-pressure X-ray photoelectron spectroscopy (AP-XPS) was used to study the dissociation of O2 and CO2 on Zn-Au(111) alloys which contained 0.2-0.3 monolayers of zinc. Although Au(111) is inert, the alloys displayed a high activity for the cleavages of O-O and C-O bonds at room temperature with the formation of ZnOx species. Dissociative adsorption of O2 at 300 K destroyed the alloys and the results of AP-XPS pointed to the co-existence of two types of oxygen species on the surface: ZnOx and chemisorbed O atoms (Ochem) on Au or the Au-ZnO interface. Annealing from room temperature to 600 K induced a Ochem → ZnOx transformation that reflected the poor stability of O atoms on Au(111). The Zn-Au(111) systems exhibited a reactivity towards CO2 that was much larger than that seen for Au(111), Cu(111) or surfaces of late transition metals like, Ni, Pd or Pt. At 300 K, CO2 underwent partial dissociation depositing large amounts of Ochem on the surface with minor formation of ZnOx. In addition, the deposited Ochem reacted with CO2 to form surface carbonate groups. Dosing of CO2 at 500-600 K mainly led to the formation of ZnOx and the surface carbonate almost disappeared. In the presence of hydrogen, i.e. reaction feeds with a CO2 to H2 ratio of 1:3, the surface chemistry at 300 K was very similar to that seen for pure CO2 with the formation of ZnOx and carbonate groups. In contrast, at 500-600 K, reaction with hydrogen induced the removal of ZnOx and CO3/HCOO species. Finally, our AP-XPS results are consistent with the idea that CO2 hydrogenation on AuZn alloys involves a redox process where there is sequential oxidation by CO2 and reduction by H2 to yield methanol.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Chemical Sciences, Geosciences & Biosciences Division (CSGB)
Grant/Contract Number:
SC0012704
OSTI ID:
2440526
Report Number(s):
BNL--226053-2024-JAAM
Journal Information:
Journal of Physical Chemistry. C, Journal Name: Journal of Physical Chemistry. C Journal Issue: 33 Vol. 128; ISSN 1932-7447
Publisher:
American Chemical SocietyCopyright Statement
Country of Publication:
United States
Language:
English

References (60)

Carbon Dioxide as Chemical Feedstock book January 2010
CO2 Activation by ZnO through the Formation of an Unusual Tridentate Surface Carbonate journal July 2007
Formation of a ZnO Overlayer in Industrial Cu/ZnO/Al 2 O 3 Catalysts Induced by Strong Metal-Support Interactions journal February 2015
Mechanistic Study of Carbon Dioxide Hydrogenation over Pd/ZnO‐Based Catalysts: The Role of Palladium–Zinc Alloy in Selective Methanol Synthesis journal June 2021
Visualizing Structural and Chemical Transformations of an Industrial Cu/ZnO/Al2O3 Pre‐catalyst during Activation and CO2 Reduction journal November 2022
CO 2 Hydrogenation to Methanol on Supported Au Catalysts under Moderate Reaction Conditions: Support and Particle Size Effects journal October 2014
The adsorption and decomposition of carbon dioxide on polycrystalline copper journal January 1988
Controlled growth of uniform two-dimensional ZnO overlayers on Au(111) and surface hydroxylation journal March 2019
Adsorption and interaction of carbon dioxide, formic acid and hydrogen/carbon dioxide mixtures on () zinc oxide surfaces studied by photoelectron spectroscopy (XPS and UPS) journal January 1988
The bonding, structure and reactions of CO2 adsorbed on clean and promoted metal surfaces journal April 1991
Auger and direct electron spectra in X-ray photoelectron studies of zinc, zinc oxide, gallium and gallium oxide journal January 1973
Adsorption of oxygen on Au(111) by exposure to ozone journal August 1998
The interaction of water with solid surfaces: fundamental aspects revisited journal May 2002
Surface chemistry of carbon dioxide journal January 1996
Interfaces in heterogeneous catalytic reactions: Ambient pressure XPS as a tool to unravel surface chemistry journal November 2017
CO2, the greenhouse effect and global warming: from the pioneering work of Arrhenius and Callendar to today's Earth System Models journal September 2016
What Should We Make with CO2 and How Can We Make It? journal May 2018
The surface chemistry of cerium oxide journal March 2015
Kinetics of low-temperature CO oxidation on Au(111) journal June 2016
Oxygen adsorption on spontaneously reconstructed Au(511) journal January 2019
Adsorption and activation of CO2 on Pt/CeOx/TiO2(110): Role of the Pt-CeOx interface journal August 2021
On the wrong assignment of the XPS O1s signal at 531–532 eV attributed to oxygen vacancies in photo- and electro-catalysts for water splitting and other materials applications journal October 2021
Interpretation of Oxygen 1s X-ray Photoelectron Spectroscopy of ZnO journal July 2023
Dual-Function Materials for CO 2 Capture and Conversion: A Review journal August 2020
Hydrogenation of CO 2 on ZnO/Cu(100) and ZnO/Cu(111) Catalysts: Role of Copper Structure and Metal–Oxide Interface in Methanol Synthesis journal August 2017
CsOx Nanostructures on Au(111): Morphology- and Size-dependent Activity for the Water–Gas Shift Reaction journal February 2024
Hydrogenation of CO 2 to Methanol on CeO x /Cu(111) and ZnO/Cu(111) Catalysts: Role of the Metal–Oxide Interface and Importance of Ce 3+ Sites journal January 2016
Theoretical Investigation of CO 2 Adsorption and Dissociation on Low Index Surfaces of Transition Metals journal March 2018
Growth, Structure, and Catalytic Properties of ZnO x Grown on CuO x /Cu(111) Surfaces journal October 2018
Influence of CO on the Activation, O-Vacancy Formation, and Performance of Au/ZnO Catalysts in CO 2 Hydrogenation to Methanol journal June 2019
Mechanism and Nature of Active Sites for Methanol Synthesis from CO/CO 2 on Cu/CeO 2 journal September 2020
Controlling the O-Vacancy Formation and Performance of Au/ZnO Catalysts in CO2 Reduction to Methanol by the ZnO Particle Size journal July 2021
The Critical Role of βPdZn Alloy in Pd/ZnO Catalysts for the Hydrogenation of Carbon Dioxide to Methanol journal April 2022
Microscopic Investigation of H2 Reduced CuOx/Cu(111) and ZnO/CuOx/Cu(111) Inverse Catalysts: STM, AP-XPS, and DFT Studies journal July 2023
Structural and Chemical Evolution of an Inverse CeOx/Cu Catalyst under CO2 Hydrogenation: Tunning Oxide Morphology to Improve Activity and Selectivity journal November 2023
Morphology Dependent Reactivity of CsOx Nanostructures on Au(111): Binding and Hydrogenation of CO2 to HCOOH journal November 2023
Interactions in Bimetallic Bonding: Electronic and Chemical Properties of PdZn Surfaces journal June 1994
Chemical properties of bimetallic surfaces: the reaction of oxygen and nitrogen dioxide with zinc on ruthenium (001) journal June 1993
Zn Modification of the Reactivity of Pd(111) Toward Methanol and Formaldehyde journal August 2008
Carbonate Formation and Decomposition on Atomic Oxygen Precovered Au(111) journal August 2008
Carbon Capture and Conversion journal March 2020
Dissociative Carbon Dioxide Adsorption and Morphological Changes on Cu(100) and Cu(111) at Ambient Pressures journal June 2016
Steps Control the Dissociation of CO 2 on Cu(100) journal September 2018
Growth of Single- and Bilayer ZnO on Au(111) and Interaction with Copper journal May 2013
CO 2 Adsorption As a Flat-Lying, Tridentate Carbonate on CeO 2 (100) journal April 2014
Formation and Thermal Stability of Au 2 O 3 on Gold Nanoparticles:  Size and Support Effects journal March 2008
Redox Pathways for HCOOH Decomposition over CeO 2 Surfaces journal June 2008
Identifying the nature of the active sites in methanol synthesis over Cu/ZnO/Al2O3 catalysts journal August 2020
Identification of CO2 adsorption sites on MgO nanosheets by solid-state nuclear magnetic resonance spectroscopy journal February 2022
Following the structure of copper-zinc-alumina across the pressure gap in carbon dioxide hydrogenation journal June 2021
Probing active sites for carbon oxides hydrogenation on Cu/TiO2 using infrared spectroscopy journal March 2022
In situ time-resolved characterization of Au–CeO2 and AuOx–CeO2 catalysts during the water-gas shift reaction: Presence of Au and O vacancies in the active phase journal December 2005
Metal–metal bonding on surfaces: Zn–Au on Ru(001) journal December 1992
New In-Situ and Operando Facilities for Catalysis Science at NSLS-II: The Deployment of Real-Time, Chemical, and Structure-Sensitive X-ray Probes journal March 2017
Ambient Pressure X-Ray Photoelectron Spectroscopy at the IOS (23-ID-2) Beamline at the National Synchrotron Light Source II journal May 2022
First-principles study of CO adsorption on ZnO surfaces journal January 2003
Charge transfer in CsCl-structure intermetallic compounds journal August 1979
Photoemission studies of zinc-noble metal alloys: Zn–Cu, Zn–Ag, and Zn–Au films on Ru(001) journal July 1993
Active sites for CO 2 hydrogenation to methanol on Cu/ZnO catalysts journal March 2017
REACTION OF CO2 WITH MgO(100) SURFACES journal December 1999

Similar Records

Growth, Structure, and Catalytic Properties of ZnOx Grown on CuOx/Cu(111) Surfaces
Journal Article · Tue Oct 30 00:00:00 EDT 2018 · Journal of Physical Chemistry. C · OSTI ID:1484882

Understanding Methanol Synthesis on Inverse ZnO/CuOx/Cu Catalysts: Stability of CH3O Species and Dynamic Nature of the Surface
Journal Article · Fri Mar 19 00:00:00 EDT 2021 · Journal of Physical Chemistry. C · OSTI ID:1785112

Understanding the Surface Structure and Catalytic Activity of SnOx/Au(111) Inverse Catalysts for CO2 and H2 Activation
Journal Article · Wed Mar 02 23:00:00 EST 2022 · Journal of Physical Chemistry. C · OSTI ID:1854092