612 citations · 2.9k across the 42 of their papers we have counts for
43 papers
The absence of a central metal ion destabilizes phthalocyanine on InO(111)
Viktoria Waidbacher, Sarah Tobisch, Faith J. Lewis +5
Metal phthalocyanines (MPc) are a versatile molecular platform for applications ranging from organic optoelectronic devices to single-atom catalysis (SAC). Their adsorption and lay…
CO on a Rh/Fe3O4 single-atom catalyst: high-resolution infrared spectroscopy and near-ambient-pressure scanning tunnelling microscopy
Nail El Hocine Barama, Chunlei Wang, Panukorn Sombut +14
Infrared reflection absorption spectroscopy (IRAS) offers a powerful route to bridging the materials and pressure gaps between surface science and powder catalysis. Using a newly d…
Hydrogen Activation via Dihydride Formation on a Rh1/Fe3O4(001) Single-Atom Catalyst
Chunlei Wang, Panukorn Sombut, Lena Puntscher +10
Hydrogen activation is a key elementary step in catalytic hydrogenation. In heterogeneous catalysis, it usually proceeds through dissociative adsorption on metal nanoparticles foll…
Multi-Technique Characterization of Rhodium Gem-Dicarbonyls on TiO(110)
Moritz Eder, Faith J. Lewis, Johanna I. Hütner +12
Gem-dicarbonyls of transition metals supported on metal (oxide) surfaces are common intermediates in heterogeneous catalysis. While infrared (IR) spectroscopy is a standard tool fo…
Single-Atom Catalysis: An Opportunity For Surface Science
Gareth S. Parkinson
Over the past decade, extensive research into single-atom catalysts (SACs) has revealed that the catalytic behavior of metal adatoms is highly dependent on how they interact with t…
Towards decoding the structure of water-magnetite interface
Salvatore Romano, Harsharan Kaur, Moritz Zelenka +9
The molecular structure of water at iron-oxide interfaces is determined by the protonation state, orientation and population of interfacial OH species. These microscopic features c…
Digging its own Site: Linear Coordination Stabilizes a Pt1/Fe2O3 Single-Atom Catalyst
Ali Rafsanjani-Abbasi, Florian Buchner, Faith J. Lewis +15
Determining the local coordination of the active site is a pre-requisite for the reliable modeling of single-atom catalysts (SACs). Obtaining such information is difficult on powde…
Quantitative measurement of cooperative binding in partially dissociated water dimers at the hematite R-cut surface
Paul T. P. Ryan, Panukorn Sombut, Ali Rafsanjani Abbasi +7
Water-solid interfaces pervade the natural environment and modern technology. On some surfaces, water-water interactions induce the formation of partially dissociated interfacial l…
A Multi-Technique Study of C2H4 Adsorption on a Model Single-Atom Rh1 Catalyst
Chunlei Wang, Panukorn Sombut, Lena Puntscher +9
Single-atom catalysts are potentially ideal model systems to investigate structure-function relationships in catalysis, if the active sites can be uniquely determined. In this work…
Infrared Reflection Absorption Spectroscopy Setup with Incidence Angle Selection for Surfaces of Non-Metals
David Rath, Vojtěch Mikerásek, Chunlei Wang +5
Infrared Reflection Absorption Spectroscopy (IRAS) on dielectric single crystals is challenging because the optimal incidence angles for light-adsorbate interaction coincide with r…
Oxygen-Terminated (1x1) Reconstruction of Reduced Magnetite FeO(111)
Florian Kraushofer, Matthias Meier, Zdeněk Jakub +7
The (111) facet of magnetite (FeO) has been studied extensively by experimental and theoretical methods, but controversy remains regarding the structure of its low-energy s…
A study of Pt, Rh, Ni and Ir dispersion on anatase TiO2(101) and the role of water
Lena Puntscher, Kevin Daninger, Michael Schmid +2
Understanding how metal atoms are stabilized on metal oxide supports is important for predicting the stability of single-atom catalysts. In this study, we use scanning tunnelling m…
A Multi-Technique Study of C2H4 Adsorption on Fe3O4(001)
Lena Puntscher, Panukorn Sombut, Chunlei Wang +10
The adsorption/desorption of ethene (C2H4), also commonly known as ethylene, on Fe3O4(001) was studied under ultrahigh vacuum conditions using temperature programmed desorption (TP…
Real-space investigation of polarons in hematite Fe2O3
Jesus Redondo, Michele Reticcioli, Vit Gabriel +17
In polarizable materials, electronic charge carriers interact with the surrounding ions, leading to quasiparticle behaviour. The resulting polarons play a central role in many mate…
Hematite in top and side view: resolving long-standing controversies about its surface structure
Jesús Redondo, Jan Michalička, Giada Franceschi +13
Hematite is the most-investigated iron oxide model system in photo and electrocatalytic research. The rich chemistry of Fe and O allows for many bulk and surf…
Single-Atom Catalysis: Insights from Model Systems
Florian Kraushofer, Gareth S. Parkinson
The field of single atom catalysis (SAC) has expanded greatly in recent years. While there has been much success developing new synthesis methods, a fundamental disconnect exists b…
CO oxidation by Pt2/Fe3O4: metastable dimer and support configurations facilitate lattice oxygen extraction
Matthias Meier, Jan Hulva, Zdenek Jakub +8
Heterogeneous catalysts based on sub-nanometer metal clusters often exhibit strongly size-dependent properties, and the addition or removal of a single atom can make all the differ…
Single Rh adatoms stabilized on α-Fe2O3(1-102) by co-adsorbed water
Florian Kraushofer, Lena Haager, Moritz Eder +8
Oxide-supported single-atom catalysts are commonly modelled as a metal atom substituting surface cation sites in a low-index surface. Adatoms with dangling bonds will inevitably co…
Rapid oxygen exchange between hematite and water vapor
Zdenek Jakub, Matthias Meier, Florian Kraushofer +6
Oxygen exchange at oxide/liquid and oxide/gas interfaces is important in technology and environmental studies, as it is closely linked to both catalytic activity and material degra…
Role of Polarons in Single-Atom Catalysts: Case Study of Me1 [Au1, Pt1, and Rh1] on TiO2(110)
Panukorn Sombut, Lena Puntscher, Marlene Atzmueller +5
The local environment of metal-oxide supported single-atom catalysts plays a decisive role in the surface reactivity and related catalytic properties. The study of such systems is…
Surface Reduction State Determines Stabilization and Incorporation of Rh on α-Fe2O3(1-102)
Florian Kraushofer, Nikolaus Resch, Moritz Eder +9
Iron oxides (FeOx) are among the most common support materials utilized in single atom catalysis. The support is nominally Fe2O3, but strongly reductive treatments are usually appl…
Unravelling CO adsorption on model single-atom catalysts
Jan Hulva, Matthias Meier, Roland Bliem +6
Understanding how the local environment of a single-atom catalyst affects stability and reactivity remains a significant challenge. We present an in-depth study of Cu1, Ag1, Au1, N…
Atomic-scale studies of Fe3O4(001) and TiO2(110) surfaces following immersion in CO2-acidified water
Francesca Mirabella, Jan Balajka1, Jiri Pavelec +5
Difficulties associated with the integration of liquids into a UHV environment make surface-science style studies of mineral dissolution particularly challenging. Recently, we deve…
Ni modified Fe3O4(001) surface as a simple model system for understanding the Oxygen Evolution Reaction
Francesca Mirabella, Matthias Muellner, Thomas Touzalin +7
Electrochemical water splitting is an environmentally friendly technology to store renewable energy in the form of chemical fuels. Among the earth-abundant first-row transition met…