Potassium-induced effect on structure and chemical activity of CuxO/Cu(111) (x≤2) surface: A combined scanning tunneling microscopy and density functional theory study

Liu, Ping; An, Wei; Stacchiola, Dario; Xu, Fang

doi:10.1002/cctc.201500719

Potassium-induced effect on structure and chemical activity of Cu_xO/Cu(111) (x≤2) surface: A combined scanning tunneling microscopy and density functional theory study

Journal Article · Fri Oct 16 00:00:00 EDT 2015 · ChemCatChem

DOI:https://doi.org/10.1002/cctc.201500719· OSTI ID:1224792

Liu, Ping ^[1]; An, Wei ^[2]; Stacchiola, Dario ^[1]; Xu, Fang ^[3]

Brookhaven National Lab. (BNL), Upton, NY (United States)
Brookhaven National Lab. (BNL), Upton, NY (United States); Shanghai Univ. of Engineering Science, Shanghai (China)
Stony Brook Univ., Stony Brook, NY (United States)

Potassium (K) plays an essential role in promoting catalytic reaction in many established industrial catalytic processes. Here, we report a combined study using scanning tunneling microscopy (STM) and density functional theory (DFT) in understanding the effect of depositing K on the atomic and electronic structures as well as chemical activities of Cu_xO/Cu(111) (x≤2). The DFT calculations observe a pseudomorphic growth of K on Cu_xO/Cu(111) up to 0.19 monolayer (ML) of coverage, where K binds the surface via strong ionic interaction with chemisorbed oxygen and the relatively weak electrostatic interactions with copper ions, lower and upper oxygen on the Cu_xO rings. The simulated STM pattern based on the DFT results agrees well with the experimental observations. The deposited K displays great impact on the surface electronic structure of Cu_xO/Cu(111), which induces significant reduction in work function and leads to a strong electron polarization on the surface. The promotion of K on the surface binding properties is selective. It varies depending on the nature of adsorbates. According to our results, K has little effect on surface acidity, while it enhances the surface basicity significantly. As a consequence, the presence of K does not help for CO adsorption on Cu_xO/Cu(111), but being able to accelerate the activation of CO₂. Thus, such promotion strongly depends on the combinations from both geometric and electronic effects. Our results highlight the origin of promoting effect of alkalis in the design of catalysts for the complex reactions.

View Accepted Manuscript (DOE)

Research Organization:: Brookhaven National Laboratory (BNL), Upton, NY (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)

Grant/Contract Number:: AC02-05CH11231; SC0012704

OSTI ID:: 1224792

Alternate ID(s):: OSTI ID: 1335403

Report Number(s):: BNL--108537-2015-JA; BNL--111845-2016-JA; KC0302010

Journal Information:: ChemCatChem, Journal Name: ChemCatChem Journal Issue: 19 Vol. 115; ISSN 1867-3880

Publisher:: ChemPubSoc EuropeCopyright Statement

Country of Publication:: United States

Language:: English

References (77)

Concepts of Modern Catalysis and Kinetics Chorkendorff, I.; Niemantsverdriet, J. W. https://doi.org/10.1002/3527602658	book	October 2003
Metal Oxide Catalysis Jackson, S. David; Hargreaves, Justin S. J. Wiley‐VCH Verlag GmbH & Co https://doi.org/10.1002/9783527626113	book	October 2008
Low-Basicity Oxygen Atoms: A Key in the Search for Propylene Epoxidation Catalysts Torres, Daniel; Lopez, Nuria; Illas, Francesc Angewandte Chemie, Vol. 119, Issue 12 https://doi.org/10.1002/ange.200603803	journal	March 2007
Dissociation of SO ₂ on Au/TiC(001): Effects of Au-C Interactions and Charge Polarization Rodriguez, José A.; Liu, Ping; Viñes, Francesc Angewandte Chemie, Vol. 120, Issue 35 https://doi.org/10.1002/ange.200801027	journal	August 2008
Water-Gas Shift Reaction on a Highly Active Inverse CeO x /Cu(111) Catalyst: Unique Role of Ceria Nanoparticles Rodriguez, José A.; Graciani, Jesús; Evans, Jaime Angewandte Chemie, Vol. 121, Issue 43 https://doi.org/10.1002/ange.200903918	journal	October 2009
The Mechanism of Potassium Promoter: Enhancing the Stability of Active Surfaces Huo, Chun-Fang; Wu, Bao-Shan; Gao, Peng Angewandte Chemie, Vol. 123, Issue 32 https://doi.org/10.1002/ange.201007484	journal	June 2011
Stabilization of Catalytically Active Cu ⁺ Surface Sites on Titanium-Copper Mixed-Oxide Films Baber, Ashleigh E.; Yang, Xiaofang; Kim, Hyun You Angewandte Chemie, Vol. 126, Issue 21 https://doi.org/10.1002/ange.201402435	journal	April 2014
Low-Basicity Oxygen Atoms: A Key in the Search for Propylene Epoxidation Catalysts Torres, Daniel; Lopez, Nuria; Illas, Francesc Angewandte Chemie International Edition, Vol. 46, Issue 12 https://doi.org/10.1002/anie.200603803	journal	March 2007
Dissociation of SO ₂ on Au/TiC(001): Effects of Au-C Interactions and Charge Polarization Rodriguez, José A.; Liu, Ping; Viñes, Francesc Angewandte Chemie International Edition, Vol. 47, Issue 35 https://doi.org/10.1002/anie.200801027	journal	August 2008
Water-Gas Shift Reaction on a Highly Active Inverse CeO x /Cu(111) Catalyst: Unique Role of Ceria Nanoparticles Rodriguez, José A.; Graciani, Jesús; Evans, Jaime Angewandte Chemie International Edition, Vol. 48, Issue 43 https://doi.org/10.1002/anie.200903918	journal	October 2009
The Mechanism of Potassium Promoter: Enhancing the Stability of Active Surfaces Huo, Chun-Fang; Wu, Bao-Shan; Gao, Peng Angewandte Chemie International Edition, Vol. 50, Issue 32 https://doi.org/10.1002/anie.201007484	journal	June 2011
Stabilization of Catalytically Active Cu ⁺ Surface Sites on Titanium-Copper Mixed-Oxide Films Baber, Ashleigh E.; Yang, Xiaofang; Kim, Hyun You Angewandte Chemie International Edition, Vol. 53, Issue 21 https://doi.org/10.1002/anie.201402435	journal	April 2014
Mechanistic Study of CO Titration on Cu _x O/Cu(1 1 1) ( x ≤2) Surfaces An, Wei; Baber, Ashleigh E.; Xu, Fang ChemCatChem, Vol. 6, Issue 8 https://doi.org/10.1002/cctc.201402177	journal	June 2014
Adsorption of CO2 and Coadsorption of H and CO2 on Potassium-Promoted Cu(115) Onsgaard, Jens; Hoffmann, Søren V.; Møller, Palle ChemPhysChem, Vol. 4, Issue 5 https://doi.org/10.1002/cphc.200200505	journal	May 2003
The role of potassium in the catalytic synthesis of ammonia Ertl, G.; Weiss, M.; Lee, S. B. Chemical Physics Letters, Vol. 60, Issue 3 https://doi.org/10.1016/0009-2614(79)80595-3	journal	January 1979
The observation of direct attractive interactions between potassium and carbon monoxide coadsorbed on Ru(001) Hoffmann, F. M.; Hrbek, J.; Depaola, R. A. Chemical Physics Letters, Vol. 106, Issue 1-2 https://doi.org/10.1016/0009-2614(84)87016-5	journal	April 1984
Untersuchung von oberflächenreaktionen mittels beugung langsamer elektronen (LEED) Ertl, G. Surface Science, Vol. 6, Issue 2 https://doi.org/10.1016/0039-6028(67)90005-2	journal	February 1967
Mechanism of the K-induced reconstruction of Cu(110) Schuster, R.; Barth, J. V.; Ertl, G. Surface Science, Vol. 247, Issue 1 https://doi.org/10.1016/0039-6028(91)90188-X	journal	May 1991
Oxidation of Cu(111): two new oxygen induced reconstructions Jensen, F.; Besenbacher, F.; Lægsgaard, E. Surface Science, Vol. 259, Issue 3 https://doi.org/10.1016/0039-6028(91)90550-C	journal	December 1991
Synchrotron FIR study of the interaction of potassium and oxygen on copper Hoffmann, F. M.; Lin, K. C.; Tobin, R. G. Surface Science, Vol. 275, Issue 1-2 https://doi.org/10.1016/0039-6028(92)90640-R	journal	September 1992
Two new oxygen induced reconstructions on Cu(111) Jensen, F.; Besenbacher, F.; Stensgaard, I. Surface Science, Vol. 269-270 https://doi.org/10.1016/0039-6028(92)91282-G	journal	May 1992
The coadsorption of CO and K on Co{100} Toomes, R. L.; King, D. A. Surface Science, Vol. 349, Issue 1 https://doi.org/10.1016/0039-6028(95)01050-5	journal	March 1996
Characterization of a CO/H2 reaction intermediate by FT-IRAS: potassium formate on Ru(001) Weisel, M. D.; Chen, J. G.; Hoffmann, P. M. Journal of Electron Spectroscopy and Related Phenomena, Vol. 54-55 https://doi.org/10.1016/0368-2048(90)80271-B	journal	January 1990
Potassium promoter in industrial ammonia synthesis catalyst: Studies by surface ionization Engvall, K.; Holmlid, L.; Kotarba, A. Applied Catalysis A: General, Vol. 134, Issue 2 https://doi.org/10.1016/0926-860X(95)00206-5	journal	January 1996
Dissociation of CO and formation of carbonate on a stepped, K-modified Cu(115) surface Onsgaard, J.; Hoffmann, S. V.; Godowski, P. J. Chemical Physics Letters, Vol. 322, Issue 3-4 https://doi.org/10.1016/S0009-2614(00)00433-4	journal	May 2000
Scanning tunneling microscopy studies of oxygen adsorption on Cu(111) Matsumoto, T.; Bennett, R. A.; Stone, P. Surface Science, Vol. 471, Issue 1-3 https://doi.org/10.1016/S0039-6028(00)00918-3	journal	January 2001
CO dissociation on K-modified Cu(1 1 2) and Cu(1 1 7) Bech, L.; Onsgaard, J.; Hoffmann, S. V. Surface Science, Vol. 482-485 https://doi.org/10.1016/S0039-6028(01)00739-7	journal	June 2001
Reactions on alkali-modified low-index stepped copper surfaces Onsgaard, J. Progress in Surface Science, Vol. 67, Issue 1-8 https://doi.org/10.1016/S0079-6816(01)00024-7	journal	August 2001
Chapter 1 Introduction Kiskinova, M. P. Poisoning and Promotion in Catalysis Based on Surface Science Concepts and Experiments https://doi.org/10.1016/S0167-2991(08)61523-2	book	January 1991
Potassium surface stability and electronic promotion in K-NbN0.9O0.1 catalysts Kotarba, Andrzej; Adamski, Grzegorz; Sojka, Zbigniew Applied Surface Science, Vol. 161, Issue 1-2 https://doi.org/10.1016/S0169-4332(00)00142-2	journal	July 2000
Study of reverse water gas shift reaction by TPD, TPR and CO2 hydrogenation over potassium-promoted Cu/SiO2 catalyst Chen, Ching-Shiun; Cheng, Wu-Hsun; Lin, Shou-Shiun Applied Catalysis A: General, Vol. 238, Issue 1 https://doi.org/10.1016/S0926-860X(02)00221-1	journal	January 2003
Evaluation of the acid-base surface properties of several oxides and supported metal catalysts by means of model reactions Martin, Dominique; Duprez, Daniel Journal of Molecular Catalysis A: Chemical, Vol. 118, Issue 1 https://doi.org/10.1016/S1381-1169(96)00371-8	journal	April 1997
Pulsed-reactant in situ studies of ceria/CuO catalysts using simultaneous XRD, PDF and DRIFTS measurements Hanson, J. C.; Si, R.; Xu, W. Catalysis Today, Vol. 229 https://doi.org/10.1016/j.cattod.2013.10.087	journal	June 2014
CO2 hydrogenation on Au/TiC, Cu/TiC, and Ni/TiC catalysts: Production of CO, methanol, and methane Rodriguez, José A.; Evans, Jaime; Feria, Leticia Journal of Catalysis, Vol. 307 https://doi.org/10.1016/j.jcat.2013.07.023	journal	November 2013
Theoretical perspective of alcohol decomposition and synthesis from CO2 hydrogenation Liu, Ping; Yang, Yixiong; White, Michael G. Surface Science Reports, Vol. 68, Issue 2 https://doi.org/10.1016/j.surfrep.2013.01.001	journal	June 2013
Vibrational spectroscopy and theory of alkali metal adsorption and co-adsorption on single-crystal surfaces Politano, A.; Chiarello, G.; Benedek, G. Surface Science Reports, Vol. 68, Issue 3-4 https://doi.org/10.1016/j.surfrep.2013.07.001	journal	November 2013
Surface reactions between CO2 and H over K-modified Cu(001) Onsgaard, Jens; Thomsen, Lars; Hoffmann, Søren V. Vacuum, Vol. 81, Issue 1 https://doi.org/10.1016/j.vacuum.2006.02.005	journal	September 2006
Physics at Surfaces Zangwill, Andrew Get accessCited by 936 Andrew Zangwill, Georgia Institute of Technology Publisher: Cambridge University Press https://doi.org/10.1017/CBO9780511622564	book	January 2012
Mechanistic Study of Methanol Synthesis from CO ₂ and H ₂ on a Modified Model Mo ₆ S ₈ Cluster Liu, Cheng; Liu, Ping ACS Catalysis, Vol. 5, Issue 2 https://doi.org/10.1021/cs501354b	journal	January 2015
Mixed Alcohol Synthesis over a K Promoted Cu/ZnO/Al ₂ O ₃ Catalyst in Supercritical Hexanes Xu, Rui; Zhang, Sihe; Roberts, Christopher B. Industrial & Engineering Chemistry Research, Vol. 52, Issue 41 https://doi.org/10.1021/ie3024017	journal	October 2013
A Role for Induced Molecular Polarization in Catalytic Promotion: CO Coadsorbed with K on Co{101̄0} Jenkins, Stephen J.; King, David A. Journal of the American Chemical Society, Vol. 122, Issue 43 https://doi.org/10.1021/ja0004985	journal	November 2000
An Insight into Alkali Promotion: A Density Functional Theory Study of CO Dissociation on K/Rh(111) Liu, Zhi-Pan; Hu, P. Journal of the American Chemical Society, Vol. 123, Issue 50 https://doi.org/10.1021/ja011446y	journal	December 2001
Nature of the Chemical Bond between Metal Atoms and Oxide Surfaces: New Evidences from Spin Density Studies of K Atoms on Alkaline Earth Oxides Chiesa, Mario; Giamello, Elio; Di Valentin, Cristiana Journal of the American Chemical Society, Vol. 127, Issue 48 https://doi.org/10.1021/ja0542901	journal	December 2005
CO Oxidation on Inverse CeO _x /Cu(111) Catalysts: High Catalytic Activity and Ceria-Promoted Dissociation of O ₂ Yang, Fan; Graciani, Jesús; Evans, Jaime Journal of the American Chemical Society, Vol. 133, Issue 10 https://doi.org/10.1021/ja1087979	journal	March 2011
Identification of 5–7 Defects in a Copper Oxide Surface Yang, Fan; Choi, YongMan; Liu, Ping Journal of the American Chemical Society, Vol. 133, Issue 30 https://doi.org/10.1021/ja204652v	journal	August 2011
Desulfurization of Thiophene on Au/TiC(001): Au−C Interactions and Charge Polarization Rodriguez, José A.; Liu, Ping; Takahashi, Yoshiro Journal of the American Chemical Society, Vol. 131, Issue 24 https://doi.org/10.1021/ja901522a	journal	June 2009
The Effect of Coadsorbed Oxygen on the Adsorption and Diffusion of Potassium on Rh(110): A First-Principles Study Xu, Ye; Marbach, Hubertus; Imbihl, Ronald The Journal of Physical Chemistry C, Vol. 111, Issue 20 https://doi.org/10.1021/jp070654v	journal	May 2007
Autocatalytic Reduction of a Cu ₂ O/Cu(111) Surface by CO: STM, XPS, and DFT Studies Yang, Fan; Choi, YongMan; Liu, Ping The Journal of Physical Chemistry C, Vol. 114, Issue 40 https://doi.org/10.1021/jp1029079	journal	July 2010
Theoretical Study of Methanol Synthesis from CO ₂ Hydrogenation on Metal-Doped Cu(111) Surfaces Yang, Yixiong; White, Michael G.; Liu, Ping The Journal of Physical Chemistry C, Vol. 116, Issue 1 https://doi.org/10.1021/jp208448c	journal	December 2011
Hydrogenation of Carbon Dioxide by Water: Alkali-Promoted Synthesis of Formate Hoffmann, Friedrich M.; Yang, Yixiong; Paul, Jan The Journal of Physical Chemistry Letters, Vol. 1, Issue 14 https://doi.org/10.1021/jz1007356	journal	June 2010
Complete CO Oxidation over Cu ₂ O Nanoparticles Supported on Silica Gel White, Brian; Yin, Ming; Hall, Andrew Nano Letters, Vol. 6, Issue 9 https://doi.org/10.1021/nl061457v	journal	September 2006
Stability and excitation of potassium promoter in iron catalysts – the role of KFeO₂ and KAlO₂ phases Kotarba, Andrzej; Barański, Andrzej; Hodorowicz, Stanisław Catalysis Letters, Vol. 67, Issue 2/4, p. 129-134 https://doi.org/10.1023/A:1019013504729	journal	January 2000
Towards the computational design of solid catalysts Nørskov, J.; Bligaard, T.; Rossmeisl, J. Nature Chemistry, Vol. 1, Issue 1, p. 37-46 https://doi.org/10.1038/nchem.121	journal	April 2009
Charge transfers at metal/oxide interfaces: a DFT study of formation of K ^δ+ and Au ^δ− species on MgO/Ag(100) ultra-thin films from deposition of neutral atoms Giordano, Livia; Pacchioni, Gianfranco Phys. Chem. Chem. Phys., Vol. 8, Issue 28 https://doi.org/10.1039/B604288K	journal	January 2006
Highly activated K-doped iron carbide nanocatalysts designed by computational simulation for Fischer–Tropsch synthesis Park, Ji Chan; Yeo, Sang Chul; Chun, Dong Hyun J. Mater. Chem. A, Vol. 2, Issue 35 https://doi.org/10.1039/C4TA02413C	journal	January 2014
Selective molecular adsorption in sub-nanometer cages of a Cu2O surface oxide Mudiyanselage, Kumudu; An, Wei; Yang, Fan Physical Chemistry Chemical Physics, Vol. 15, Issue 26 https://doi.org/10.1039/c3cp50522g	journal	January 2013
Tuning the work function of ultrathin oxide films on metals by adsorption of alkali atoms Martinez, Umberto; Giordano, Livia; Pacchioni, Gianfranco The Journal of Chemical Physics, Vol. 128, Issue 16 https://doi.org/10.1063/1.2905218	journal	April 2008
Alkali-promoted CO dissociation on Cu(111) and Ni(111) at room temperature Politano, A.; Formoso, V.; Chiarello, G. The Journal of Chemical Physics, Vol. 129, Issue 16 https://doi.org/10.1063/1.2996133	journal	October 2008
Alkali Doping in Heterogeneous Catalysis Mross, W. D. Catalysis Reviews, Vol. 25, Issue 4 https://doi.org/10.1080/01614948308078057	journal	December 1983
Special points for Brillouin-zone integrations Monkhorst, Hendrik J.; Pack, James D. Physical Review B, Vol. 13, Issue 12, p. 5188-5192 https://doi.org/10.1103/PhysRevB.13.5188	journal	June 1976
Atoms, molecules, solids, and surfaces: Applications of the generalized gradient approximation for exchange and correlation Perdew, John P.; Chevary, J. A.; Vosko, S. H. Physical Review B, Vol. 46, Issue 11 https://doi.org/10.1103/PhysRevB.46.6671	journal	September 1992
Ab initiomolecular dynamics for liquid metals Kresse, G.; Hafner, J. Physical Review B, Vol. 47, Issue 1, p. 558-561 https://doi.org/10.1103/PhysRevB.47.558	journal	January 1993
Erratum: Atoms, molecules, solids, and surfaces: Applications of the generalized gradient approximation for exchange and correlation Perdew, John P.; Chevary, J. A.; Vosko, S. H. Physical Review B, Vol. 48, Issue 7 https://doi.org/10.1103/PhysRevB.48.4978.2	journal	August 1993
Interactions between alkali metals and oxygen on a reconstructed surface: An STM study of oxygen adsorption on the alkali-metal-covered Cu(110) surface Schuster, R.; Barth, J. V.; Wintterlin, J. Physical Review B, Vol. 50, Issue 23 https://doi.org/10.1103/PhysRevB.50.17456	journal	December 1994
Projector augmented-wave method Blöchl, P. E. Physical Review B, Vol. 50, Issue 24, p. 17953-17979 https://doi.org/10.1103/PhysRevB.50.17953	journal	December 1994
Efficient iterative schemes for ab initio total-energy calculations using a plane-wave basis set Kresse, G.; Furthmüller, J. Physical Review B, Vol. 54, Issue 16, p. 11169-11186 https://doi.org/10.1103/PhysRevB.54.11169	journal	October 1996
From ultrasoft pseudopotentials to the projector augmented-wave method Kresse, G.; Joubert, D. Physical Review B, Vol. 59, Issue 3, p. 1758-1775 https://doi.org/10.1103/PhysRevB.59.1758	journal	January 1999
Interaction and diffusion of potassium on Cr 2 O 3 ( 0001 ) / C r ( 110 ) Zhao, W.; Kerner, G.; Asscher, M. Physical Review B, Vol. 62, Issue 11 https://doi.org/10.1103/PhysRevB.62.7527	journal	September 2000
Oxygen adsorption and stability of surface oxides on Cu ( 111 ) : A first-principles investigation Soon, Aloysius; Todorova, Mira; Delley, Bernard Physical Review B, Vol. 73, Issue 16 https://doi.org/10.1103/PhysRevB.73.165424	journal	April 2006
Anomalous C-O Bond Weakening of Side-On-Bonded Carbon Monoxide on a Potassium-Promoted Ru(001) Surface Hoffmann, F. M.; de Paola, R. A. Physical Review Letters, Vol. 52, Issue 19 https://doi.org/10.1103/PhysRevLett.52.1697	journal	May 1984
Catalytic Promotion and Poisoning: All-Electron Local-Density-Functional Theory of CO on Ni(001) Surfaces Coadsorbed with K or S Wimmer, E.; Fu, C. L.; Freeman, A. J. Physical Review Letters, Vol. 55, Issue 23 https://doi.org/10.1103/PhysRevLett.55.2618	journal	December 1985
Alkali Promotion of N 2 Dissociation over Ru(0001) Mortensen, J. J.; Hammer, B.; Nørskov, J. K. Physical Review Letters, Vol. 80, Issue 19 https://doi.org/10.1103/PhysRevLett.80.4333	journal	May 1998
Alkali-Induced Enhancement of Surface Electronic Polarizibility Stolbov, Sergey; Rahman, Talat S. Physical Review Letters, Vol. 96, Issue 18 https://doi.org/10.1103/PhysRevLett.96.186801	journal	May 2006
Summary Abstract: Local density functional theory of alkali adsorption on transition metal surfaces: Work function lowering and catalytic promotion Wimmer, E.; Chubb, S. R.; Fu, C. ‐L. Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films, Vol. 5, Issue 4 https://doi.org/10.1116/1.574383	journal	July 1987
The Active Site of Methanol Synthesis over Cu/ZnO/Al₂O₃ Industrial Catalysts Behrens, M.; Studt, F.; Kasatkin, I. Science, Vol. 336, Issue 6083, p. 893-897 https://doi.org/10.1126/science.1219831	journal	April 2012
Highly active copper-ceria and copper-ceria-titania catalysts for methanol synthesis from CO2 Graciani, J.; Mudiyanselage, K.; Xu, F. Science, Vol. 345, Issue 6196 https://doi.org/10.1126/science.1253057	journal	July 2014
The Nature of the Metal-Metal Bond in Bimetallic Surfaces Rodriguez, J. A.; Goodman, D. W. Science, Vol. 257, Issue 5072 https://doi.org/10.1126/science.257.5072.897	journal	August 1992

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Activation of CO ₂ at the electrode–electrolyte interface by a co-adsorbed cation and an electric field Chernyshova, Irina V.; Ponnurangam, Sathish Physical Chemistry Chemical Physics, Vol. 21, Issue 17 https://doi.org/10.1039/c8cp07807f	journal	January 2019
Hydroxylation of ZnO/Cu(1 1 1) inverse catalysts under ambient water vapor and the water–gas shift reaction Orozco, Ivan; Huang, Erwei; Gutiérrez, Ramón A. Journal of Physics D: Applied Physics, Vol. 52, Issue 45 https://doi.org/10.1088/1361-6463/ab37da	journal	August 2019

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30 DIRECT ENERGY CONVERSION
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