Stephan Pollitt
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View article: Engineering Catalytic Efficiency by Thiolate-Protected Trimetallic (Cu, Pd, Au) Nanoclusters: Single-Atom Alloy Catalysts for Water–Gas Shift
Engineering Catalytic Efficiency by Thiolate-Protected Trimetallic (Cu, Pd, Au) Nanoclusters: Single-Atom Alloy Catalysts for Water–Gas Shift Open
The "crude oil exodus" and energy transition will finally hinge on the availability of hydrogen. Catalytic processes like the water-gas shift (WGS) reaction may significantly contribute to its production and become crucial for utilizing al…
View article: Characterization of the thorium-229 defect structure in CaF<sub>2</sub> crystals
Characterization of the thorium-229 defect structure in CaF<sub>2</sub> crystals Open
Recent advancements in laser excitation of the low-energy thorium-229 ( 229 Th) nuclear isomeric state in calcium fluoride (CaF 2 ) single crystals render this system a promising candidate for a solid-state nuclear clock. Nonetheless, the …
View article: Alloyed molybdenum enables efficient alcohol hydrodeoxygenation with supported bimetallic catalysts
Alloyed molybdenum enables efficient alcohol hydrodeoxygenation with supported bimetallic catalysts Open
Bimetallic catalysts combining group 9 or 10 metals (Rh, Ir, Ni, Pd, Pt) with Mo have been synthesized via SOMC and assessed in the hydrodeoxygenation of alcohols with emphasis on the structural evolution of the catalysts and the role of M…
View article: Alloyed Molybdenum Enables Efficient Alcohol Hydrodeoxygenation with Supported Bimetallic Catalysts
Alloyed Molybdenum Enables Efficient Alcohol Hydrodeoxygenation with Supported Bimetallic Catalysts Open
Bimetallic heterogeneous catalysts combining group 9 metals (Rh, Ir) or group 10 metals (Ni, Pd, Pt) with Mo on a silica-based support have been synthesized via surface organometallic chemistry and assessed in their catalytic activity for …
View article: Mn-promoted MoS<sub>2</sub> catalysts for CO<sub>2</sub> hydrogenation: enhanced methanol selectivity due to MoS<sub>2</sub>/MnO<sub><i>x</i></sub> interfaces
Mn-promoted MoS<sub>2</sub> catalysts for CO<sub>2</sub> hydrogenation: enhanced methanol selectivity due to MoS<sub>2</sub>/MnO<sub><i>x</i></sub> interfaces Open
Considering the alarming scenario of climate change, CO 2 hydrogenation to methanol is considered a key process for phasing out fossil fuels by means of CO 2 utilization.
View article: Ultrahigh Mass Activity Pt Entities Consisting of Pt Single atoms, Clusters, and Nanoparticles for Improved Hydrogen Evolution Reaction
Ultrahigh Mass Activity Pt Entities Consisting of Pt Single atoms, Clusters, and Nanoparticles for Improved Hydrogen Evolution Reaction Open
X-ray absorption spectroscopy data in an Athena project file.
View article: Ultrahigh Mass Activity Pt Entities Consisting of Pt Single atoms, Clusters, and Nanoparticles for Improved Hydrogen Evolution Reaction
Ultrahigh Mass Activity Pt Entities Consisting of Pt Single atoms, Clusters, and Nanoparticles for Improved Hydrogen Evolution Reaction Open
X-ray absorption spectroscopy data in an Athena project file.
View article: Group 10 Metal Allyl Amidinates: A Family of Readily Accessible and Stable Molecular Precursors to Generate Supported Nanoparticles
Group 10 Metal Allyl Amidinates: A Family of Readily Accessible and Stable Molecular Precursors to Generate Supported Nanoparticles Open
The synthesis of well-defined materials as model systems for catalysis and related fields is an important pillar in the understanding of catalytic processes at a molecular level. Various approaches employing organometallic precursors have …
View article: CCDC 2117644: Experimental Crystal Structure Determination
CCDC 2117644: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …
View article: Ultrahigh Mass Activity Pt Entities Consisting of Pt Single atoms, Clusters, and Nanoparticles for Improved Hydrogen Evolution Reaction
Ultrahigh Mass Activity Pt Entities Consisting of Pt Single atoms, Clusters, and Nanoparticles for Improved Hydrogen Evolution Reaction Open
Platinum is one of the best‐performing catalysts for the hydrogen evolution reaction (HER). However, high cost and scarcity severely hinder the large‐scale application of Pt electrocatalysts. Constructing highly dispersed ultrasmall Platin…
View article: CCDC 2241138: Experimental Crystal Structure Determination
CCDC 2241138: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …
View article: CCDC 2241137: Experimental Crystal Structure Determination
CCDC 2241137: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …
View article: Group 10 Metal Allyl Amidinates: A Family of Readily Accessible and Stable Molecular Precursors to Generate Supported Nanoparticles
Group 10 Metal Allyl Amidinates: A Family of Readily Accessible and Stable Molecular Precursors to Generate Supported Nanoparticles Open
The synthesis of well-defined materials as model systems for catalysis and related fields is an important pillar in the understanding of catalytic processes at a molecular level. Various approaches employing organometallic precursors have …
View article: CCDC 2241139: Experimental Crystal Structure Determination
CCDC 2241139: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …
View article: Smart characterization of heterogeneous catalysts: EXAFS for Single Atom Catalyst
Smart characterization of heterogeneous catalysts: EXAFS for Single Atom Catalyst Open
This repository houses the data and metadata generated as part of the "Smart characterization of heterogeneous catalysts: EXAFS for Single Atom Catalyst" project.
View article: Smart characterization of heterogeneous catalysts: EXAFS for Single Atom Catalyst
Smart characterization of heterogeneous catalysts: EXAFS for Single Atom Catalyst Open
This repository houses the data and metadata generated as part of the "Smart characterization of heterogeneous catalysts: EXAFS for Single Atom Catalyst" project.
View article: Solution-Processed Cu<sub>2</sub>S Nanostructures for Solar Hydrogen Production
Solution-Processed Cu<sub>2</sub>S Nanostructures for Solar Hydrogen Production Open
Cu2S is a promising solar energy conversion material due to its suitable optical properties, high elemental earth abundance, and nontoxicity. In addition to the challenge of multiple stable secondary phases, the short minority carrier diff…
View article: Active Site Descriptors from 95Mo NMR Signatures of Silica-supported Mo-based Olefin Metathesis Catalysts
Active Site Descriptors from 95Mo NMR Signatures of Silica-supported Mo-based Olefin Metathesis Catalysts Open
The catalytic activity of silica-supported molybdenum oxides for olefin metathesis depends strongly on the metal loading and preparation conditions indicating that the nature and/or amounts of the active sites vary across catalysts. This i…
View article: Selective ligand exchange synthesis of Au16(2-PET)14 from Au15(SG)13
Selective ligand exchange synthesis of Au16(2-PET)14 from Au15(SG)13 Open
Replacement of protecting ligands of gold nanoclusters by ligand exchange has become an established post-synthetic tool for selectively modifying the nanoclusters’ properties. Several Au nanoclusters are known to additionally undergo size …
View article: The Dynamic Structure of Au<sub>38</sub>(SR)<sub>24</sub> Nanoclusters Supported on CeO<sub>2</sub> upon Pretreatment and CO Oxidation
The Dynamic Structure of Au<sub>38</sub>(SR)<sub>24</sub> Nanoclusters Supported on CeO<sub>2</sub> upon Pretreatment and CO Oxidation Open
Atomically precise thiolate protected Au nanoclusters Au38(SC2H4Ph)24 on CeO2 were used for in-situ (operando) extended X-ray absorption fine structure/diffuse reflectance infrared fourier transform spectroscopy and ex situ scanning transm…
View article: Support effect on the reactivity and stability of Au25(SR)18 and Au144(SR)60 nanoclusters in liquid phase cyclohexane oxidation
Support effect on the reactivity and stability of Au25(SR)18 and Au144(SR)60 nanoclusters in liquid phase cyclohexane oxidation Open
Using oxide supported atomically precise gold nanoclusters is an emerging field in heterogeneous catalysis. Such well-defined nanocatalysts represent a rather new model system enabling fundamental insights in catalytic reactions. In the pr…
View article: Ligand Migration from Cluster to Support: A Crucial Factor for Catalysis by Thiolate‐protected Gold Clusters
Ligand Migration from Cluster to Support: A Crucial Factor for Catalysis by Thiolate‐protected Gold Clusters Open
The front cover artwork for issue 23/2018 is provided by an international group of scientists from the University of Geneva (Switzerland), the Technical University of Vienna (Austria), the Universitat Politècnica de Catalunya and ALBA Sync…
View article: Front Cover: Ligand Migration from Cluster to Support: A Crucial Factor for Catalysis by Thiolate‐protected Gold Clusters (ChemCatChem 23/2018)
Front Cover: Ligand Migration from Cluster to Support: A Crucial Factor for Catalysis by Thiolate‐protected Gold Clusters (ChemCatChem 23/2018) Open
The Front Cover shows the thiol ligand migration from the gold nanocluster to the surface once it has been supported, forming sulfur oxide species. In their Communication, B. Zhang et al. demonstrate that both pre-treatment temperature and…
View article: Ligand Migration from Cluster to Support: A Crucial Factor for Catalysis by Thiolate‐protected Gold Clusters
Ligand Migration from Cluster to Support: A Crucial Factor for Catalysis by Thiolate‐protected Gold Clusters Open
Thiolate protected metal clusters are valuable precursors for the design of tailored nanosized catalysts. Their performance can be tuned precisely at atomic level, e. g. by the configuration/type of ligands or by partial/complete removal o…
View article: Synthesis and Properties of Monolayer-Protected Co<sub><i>x</i></sub>(SC<sub>2</sub>H<sub>4</sub>Ph)<sub><i>m</i></sub> Nanoclusters
Synthesis and Properties of Monolayer-Protected Co<sub><i>x</i></sub>(SC<sub>2</sub>H<sub>4</sub>Ph)<sub><i>m</i></sub> Nanoclusters Open
Nanometer-sized and stable thiolate-protected cobalt clusters were synthesized by a wet chemical method, leading to a pink solution with well-defined optical activity (ultraviolet-visible) and photoluminescence. The cobalt cluster core of …