Tony Hansson
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View article: Dynamics of classical analogs of bosons, fermions, and beyond
Dynamics of classical analogs of bosons, fermions, and beyond Open
We study the classical mechanics and dynamics of particles that retains some memory of quantum statistics. Our work builds on earlier work on the statistical mechanics and thermodynamics of such particles. Starting from the effective class…
View article: X‐Ray Absorption Spectroscopy Probing of Gold Electro‐Oxidation Reveals Intermediate Surficial Au(I)
X‐Ray Absorption Spectroscopy Probing of Gold Electro‐Oxidation Reveals Intermediate Surficial Au(I) Open
While Au electro‐oxidation in acidic aqueous media on a phenomenological level proceeds directly from Au(0) to Au(III), it has previously been suggested that Au(I) states are intermediate species of the oxidation mechanism. Here, additiona…
View article: Insight into the Carbon Monoxide Reduction Reaction on Cu(111) from <i>Operando</i> Electrochemical X‐ray Photoelectron Spectroscopy
Insight into the Carbon Monoxide Reduction Reaction on Cu(111) from <i>Operando</i> Electrochemical X‐ray Photoelectron Spectroscopy Open
In this work, we introduce a modified dip‐and‐pull electrochemical X‐ray photoelectron spectroscopy (ECXPS) approach that offers new mechanistic insight into the alkaline carbon monoxide reduction reaction (CORR) over a Cu(111) single crys…
View article: X-ray Absorption Spectroscopy Probing of Gold Electrooxidation Reveals Intermediate Surficial Au(I)
X-ray Absorption Spectroscopy Probing of Gold Electrooxidation Reveals Intermediate Surficial Au(I) Open
While Au electrooxidation in acidic aqueous media on a phenomenological level proceeds directly from Au(0) to Au(III), it has previously been suggested that Au(I) states are intermediate species of the oxidation mechanism. Here we add to t…
View article: Insight into the carbon monoxide reduction reaction on Cu(111) from operando electrochemical X-ray photoelectron spectroscopy
Insight into the carbon monoxide reduction reaction on Cu(111) from operando electrochemical X-ray photoelectron spectroscopy Open
In this work, we introduce a modified dip-and-pull ECXPS approach that offers new mechanistic insight into the alkaline CORR over a Cu(111) single crystal surface. We tackle two major unresolved questions in the CORR mechanism that persist…
View article: Naphthalene Decomposition on Fe(110)─Adsorption, Dehydrogenation, Surface Carbon Formation and the Influence of Coadsorbed Oxygen
Naphthalene Decomposition on Fe(110)─Adsorption, Dehydrogenation, Surface Carbon Formation and the Influence of Coadsorbed Oxygen Open
Tar is an undesirable byproduct of biomass gasification, which can be removed through catalytic reforming to syngas components. Iron is a promising, abundant alternative to highly active but toxic nickel catalysts. The results observed so …
View article: Naphthalene Dehydrogenation on Ni(111) in the Presence of Chemisorbed Oxygen and Nickel Oxide
Naphthalene Dehydrogenation on Ni(111) in the Presence of Chemisorbed Oxygen and Nickel Oxide Open
Catalyst passivation through carbon poisoning is a common and costly problem as it reduces the lifetime and performance of the catalyst. Adding oxygen to the feed stream could reduce poisoning but may also affect the activity negatively. W…
View article: Biomarker studies of female perch (Perca fluviatilis) in a chronically polluted gradient through the Stockholm archipelago
Biomarker studies of female perch (Perca fluviatilis) in a chronically polluted gradient through the Stockholm archipelago Open
No abstracts are to be cited without prior reference to the author.Adult female perch (Perca fluviatilis) were investigated at several stations in the Stockholm archipelago in a gradient from Stockholm’s central waterways, through the arch…
View article: Effect of Coadsorbed Sulfur on the Dehydrogenation of Naphthalene on Ni(111)
Effect of Coadsorbed Sulfur on the Dehydrogenation of Naphthalene on Ni(111) Open
There are several difficulties when experimentally determined reaction mechanisms are applied from model systems to real catalysis. Besides the infamous pressure and material gaps, it is sometimes necessary to consider impurities in the re…
View article: Multi-spectroscopic study of electrochemically-formed oxide-derived gold electrodes
Multi-spectroscopic study of electrochemically-formed oxide-derived gold electrodes Open
Oxide-derived metals are produced by reducing an oxide precursor. These materials, including gold, have shown improved catalytic performance over many native metals.
View article: Chemisorbed oxygen or surface oxides steer the selectivity in Pd electrocatalytic propene oxidation observed by <i>operando</i> Pd L-edge X-ray absorption spectroscopy
Chemisorbed oxygen or surface oxides steer the selectivity in Pd electrocatalytic propene oxidation observed by <i>operando</i> Pd L-edge X-ray absorption spectroscopy Open
Operando Pd X-ray absorption spectroscopy elucidates how the surface oxygen species steer the selectivity in the electrochemical oxidation of propene.
View article: Time-Resolved Photoelectron Spectroscopy Studies of Isoxazole and Oxazole
Time-Resolved Photoelectron Spectroscopy Studies of Isoxazole and Oxazole Open
The excited state relaxation pathways of isoxazole and oxazole upon excitation with UV-light were investigated by nonadiabatic ab initio dynamics simulations and time-resolved photoelectron spectroscopy. Excitation of the bright ππ*-state …
View article: Investigation of the surface species during temperature dependent dehydrogenation of naphthalene on Ni(111)
Investigation of the surface species during temperature dependent dehydrogenation of naphthalene on Ni(111) Open
The temperature dependent dehydrogenation of naphthalene on Ni(111) has been investigated using vibrational sum-frequency generation spectroscopy, X-ray photoelectron spectroscopy, scanning tunneling microscopy, and density functional theo…
View article: Screening and topological order in thin superconducting films
Screening and topological order in thin superconducting films Open
We derive an effective two-dimensional low-energy theory for thin superconducting films coupled to a three-dimensional fluctuating electromagnetic field. Using this theory we discuss plasma oscillations, interactions between charges and vo…
View article: Proposed Spontaneous Generation of Magnetic Fields by Curved Layers of a Chiral Superconductor
Proposed Spontaneous Generation of Magnetic Fields by Curved Layers of a Chiral Superconductor Open
We demonstrate that two-dimensional chiral superconductors on curved surfaces spontaneously develop magnetic flux. This geometric Meissner effect provides an unequivocal signature of chiral superconductivity, which could be observed in lay…
View article: Naphthalene on Ni(111): Experimental and Theoretical Insights into Adsorption, Dehydrogenation, and Carbon Passivation
Naphthalene on Ni(111): Experimental and Theoretical Insights into Adsorption, Dehydrogenation, and Carbon Passivation Open
An attractive solution to mitigate tars and also to decompose lighter hydrocarbons in biomass gasification is secondary catalytic reforming, converting hydrocarbons to useful permanent gases. Albeit that it has been in use for a long time …
View article: U-CAN: a prospective longitudinal collection of biomaterials and clinical information from adult cancer patients in Sweden
U-CAN: a prospective longitudinal collection of biomaterials and clinical information from adult cancer patients in Sweden Open
Background: Progress in cancer biomarker discovery is dependent on access to high-quality biological materials and high-resolution clinical data from the same cases. To overcome current limitations, a systematic prospective longitudinal sa…
View article: Topological Order and Screening in Superconducting Films
Topological Order and Screening in Superconducting Films Open
We derive an effective two-dimensional low-energy theory for thin superconducting films coupled to a three-dimensional fluctuating electromagnetic field. Using this theory we discuss plasma oscil- lations, interactions between charges and …
View article: Quantum Hall physics: Hierarchies and conformal field theory techniques
Quantum Hall physics: Hierarchies and conformal field theory techniques Open
The fractional quantum Hall effect, being one of the most studied phenomena in condensed matter physics during the past 30 years, has generated many ground-breaking new ideas and concepts. Very early on it was realized that the zoo of emer…
View article: Supporting variables for biological effects measurements in fish and blue mussels
Supporting variables for biological effects measurements in fish and blue mussels Open
Biological effects measurements in fish and blue mussel are fundamental in marine environmental monitoring. Nevertheless, currently used biomarkers may be confounded by basic physiological phenomena, such as growth, reproduction, and feedi…
View article: Substituent effects on the relaxation dynamics of furan, furfural and β-furfural: a combined theoretical and experimental approach
Substituent effects on the relaxation dynamics of furan, furfural and β-furfural: a combined theoretical and experimental approach Open
The photoinduced relaxation of furan, furfural and β-furfural is mediated by conical intersections and has been investigated experimentally and theoretically.