Jörg Libuda
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View article: Solution ALD of (CH <sub>3</sub> NH <sub>3</sub> )(PbI <sub>3</sub> ) Perovskite Thin Films Yields Functional Quality and Stability Superior to Classical Processing
Solution ALD of (CH <sub>3</sub> NH <sub>3</sub> )(PbI <sub>3</sub> ) Perovskite Thin Films Yields Functional Quality and Stability Superior to Classical Processing Open
Atomic‐level control of solution‐processed hybrid halide perovskites is achieved experimentally by solution atomic layer deposition (sALD). This method transfers the surface chemical principles of gas‐phase ALD (gALD) to precursors dissolv…
View article: Tuning Electrocatalytic Energy Release in Norbornadiene Based Molecular Solar Thermal Systems Through Substituent Effects
Tuning Electrocatalytic Energy Release in Norbornadiene Based Molecular Solar Thermal Systems Through Substituent Effects Open
Molecular solar thermal (MOST) systems, such as the norbornadiene/quadricyclane (NBD/QC) pair, combine solar energy conversion, storage, and release in a simple one‐molecule process. The energy‐releasing reaction QC to NBD can be controlle…
View article: Nanopatterning Single-Crystalline Metal Electrodes via Ion Erosion: New Structural Motifs for Model Electrocatalysis
Nanopatterning Single-Crystalline Metal Electrodes via Ion Erosion: New Structural Motifs for Model Electrocatalysis Open
Model studies in electrocatalysis provide valuable insights into complex structure-property relationships and rely heavily on experimental techniques that enable the preparation of electrode surfaces with atomic-scale control over morpholo…
View article: Structure Formation in the Wetting Layer of a Carbonyl‐Functionalized Ionic Liquid on Au(111): How to Control the Functional Group?
Structure Formation in the Wetting Layer of a Carbonyl‐Functionalized Ionic Liquid on Au(111): How to Control the Functional Group? Open
Coating heterogeneous catalysts with ionic liquids (ILs), a strategy known as ‘solid catalysts with ionic liquid layers’, can fine‐tune catalytic selectivity. Introducing functional groups into ILs enhances their interaction with reactants…
View article: Heterogeneously Catalyzed Energy Release in Azaborinine-based Molecular Solar Thermal Systems
Heterogeneously Catalyzed Energy Release in Azaborinine-based Molecular Solar Thermal Systems Open
Molecular solar thermal (MOST) systems combine the conversion, storage and release of solar energy using switchable photoisomers. Isomerization of azaborinines (BN-benzenes) to their Dewar isomers (BN-Dewar) yields BNB/BND couples, represe…
View article: Atomic layer deposition on spray-dried supraparticles to rationally design catalysts with ultralow noble metal loadings
Atomic layer deposition on spray-dried supraparticles to rationally design catalysts with ultralow noble metal loadings Open
This document is the unedited not peer-reviewed Author’s version of a Submitted Work to Chemistry of Materials. The controlled assembly of supraparticles using spray-drying enables the synthesis of nanoporous materials. Changing the size o…
View article: The Influence of Ionic Liquid Modification on the Restructuring of Trimetallic PtNiMo/C Catalysts During Conditioning
The Influence of Ionic Liquid Modification on the Restructuring of Trimetallic PtNiMo/C Catalysts During Conditioning Open
During preconditioning of PtNiMo/C catalyst metal dissolution and redeposition takes place. At slow scan rates this leads to increased steady activity for oxygen reduction reaction (ORR). Furthermore, ionic liquids (IL) influence the activ…
View article: Be Aware of Transient Dissolution Processes in Co<sub>3</sub>O<sub>4</sub> Acidic Oxygen Evolution Reaction Electrocatalysts
Be Aware of Transient Dissolution Processes in Co<sub>3</sub>O<sub>4</sub> Acidic Oxygen Evolution Reaction Electrocatalysts Open
Recently, cobalt-based oxides have received considerable attention as an alternative to expensive and scarce iridium for catalyzing the oxygen evolution reaction (OER) under acidic conditions. Although the reported materials demonstrate pr…
View article: How the ionic liquid [C<sub>2</sub>C<sub>1</sub>Im][OTf] affects the stability of Pt(111) during potential cycling
How the ionic liquid [C<sub>2</sub>C<sub>1</sub>Im][OTf] affects the stability of Pt(111) during potential cycling Open
Dissolution, morphological changes, and adsorption site evolution of Pt(111) electrodes are investigated in the presence of an ionic liquid surface modifier.
View article: Stability of multifunctional Pd–Rh electrocatalysts supported on Co<sub>3</sub>O<sub>4</sub>(111) in alkaline environment: impact of the electronic metal–support interaction
Stability of multifunctional Pd–Rh electrocatalysts supported on Co<sub>3</sub>O<sub>4</sub>(111) in alkaline environment: impact of the electronic metal–support interaction Open
EMSI stabilizes noble metals against dissolution, but results in strong oxidation controlled by the nature of the metal/support interface.
View article: Mechanistic Study of Ethanol Decomposition on Co<sub>3</sub>O<sub>4</sub>(111) and Pd/Co<sub>3</sub>O<sub>4</sub>(111) Model Catalysts
Mechanistic Study of Ethanol Decomposition on Co<sub>3</sub>O<sub>4</sub>(111) and Pd/Co<sub>3</sub>O<sub>4</sub>(111) Model Catalysts Open
In many advanced catalytic materials, different functionalities are coupled through spillover of active species across heterogeneous interfaces. In the present work, we consider the coupling of a C─C bond cleavage functionality of palladiu…
View article: Adsorption and Thermal Evolution of the Carbonyl‐functionalized Ionic Liquid [5‐oxo‐C<sub>6</sub>C<sub>1</sub>Im][NTf<sub>2</sub>] on Pt(111): A Combined IRAS, STM, and DFT Study
Adsorption and Thermal Evolution of the Carbonyl‐functionalized Ionic Liquid [5‐oxo‐C<sub>6</sub>C<sub>1</sub>Im][NTf<sub>2</sub>] on Pt(111): A Combined IRAS, STM, and DFT Study Open
The coating of heterogeneous catalysts with ionic liquids enables precise tuning of catalytic activity and selectivity. Recently, the fundamentals of solid catalysts with ionic liquid layers have been extensively studied. So far, investiga…
View article: Different Nucleation Mechanisms during Atomic Layer Deposition of HfS<sub>2</sub> on Cobalt Oxide Surfaces
Different Nucleation Mechanisms during Atomic Layer Deposition of HfS<sub>2</sub> on Cobalt Oxide Surfaces Open
The atomic layer deposition (ALD) of HfS 2 is investigated on atomically defined CoO(100) and CoO(111) surfaces under ultrahigh‐vacuum (UHV) conditions. The ALD process is performed by sequential dosing of the precursors tetrakis(dimethyla…
View article: Different Nucleation Mechanisms during Atomic Layer Deposition of HfS2 on Cobalt Oxide Surfaces
Different Nucleation Mechanisms during Atomic Layer Deposition of HfS2 on Cobalt Oxide Surfaces Open
We investigated the atomic layer deposition (ALD) of HfS2 on atomically defined CoO(100) and CoO(111) surfaces under ultrahigh-vacuum (UHV) conditions. The ALD process was performed by sequential dosing of the precursors tetrakis(dimethyla…
View article: C C bond cleavage in the electrooxidation of 2,3-butanediol controlled by an ionic liquid modifier
C C bond cleavage in the electrooxidation of 2,3-butanediol controlled by an ionic liquid modifier Open
In heterogeneous catalysis, ionic liquids (ILs) are used as chemical modifiers to control selectivity. In our work, we aim to apply the same concept to electrocatalytic systems. As a model reaction, we studied the electrooxidation of 2,3-b…
View article: Catalyst Supraparticles: Tuning the Structure of Spray‐Dried Pt/SiO<sub>2</sub> Supraparticles via Salt‐Based Colloidal Manipulation to Control their Catalytic Performance
Catalyst Supraparticles: Tuning the Structure of Spray‐Dried Pt/SiO<sub>2</sub> Supraparticles via Salt‐Based Colloidal Manipulation to Control their Catalytic Performance Open
The structure of supraparticles (SPs) is a key parameter for achieving advanced functionalities arising from the combination of different nanoparticle (NP) types in one hierarchical entity. However, whenever a droplet‐assisted forced assem…
View article: Squeezing the Threshold of Metal‐Halide Perovskite Micro‐Crystal Lasers Grown by Solution Epitaxy
Squeezing the Threshold of Metal‐Halide Perovskite Micro‐Crystal Lasers Grown by Solution Epitaxy Open
Metal halide perovskite semiconductors have demonstrated remarkable progress not only in photovoltaics and X‐ray detection but also in laser technologies. Particularly appealing is the simplicity with which micro‐crystallites can be epitax…
View article: Catalyst Supraparticles: Tuning the Structure of Spray-dried Pt/SiO2 Supraparticles via Salt-based Colloidal Manipulation to Control their Catalytic Performance
Catalyst Supraparticles: Tuning the Structure of Spray-dried Pt/SiO2 Supraparticles via Salt-based Colloidal Manipulation to Control their Catalytic Performance Open
The structure of supraparticles (SP) is a key parameter for achieving advanced functionalities arising from the combination of different nanoparticle (NP) types in one hierarchical entity. However, whenever a droplet-assisted forced assemb…
View article: Increasing Activity of Trimetallic Oxygen Reduction PtNiMo/C Catalysts Through Initial Conditioning
Increasing Activity of Trimetallic Oxygen Reduction PtNiMo/C Catalysts Through Initial Conditioning Open
This study investigates the importance of preconditioning in Pt‐alloy catalysts for oxygen–reduction reactions. Previous research indicated that slower scanning rates during preconditioning initially boost activity, but this is followed by…
View article: Platinum Oxide Formation under Oxygen Evolution Reaction Conditions
Platinum Oxide Formation under Oxygen Evolution Reaction Conditions Open
Electrocatalyst degradation, often caused by oxidative processes, forms a large barrier for the wide-spread application of electrolysers and fuel cells, which are crucial for a sustainable energy society. A detailed understanding of the ca…
View article: Reactivity of a model SCILL: Influence of co-adsorbed [C2C1Im][OTf] on the dehydrogenation of dimethylamine on Pt(111)
Reactivity of a model SCILL: Influence of co-adsorbed [C2C1Im][OTf] on the dehydrogenation of dimethylamine on Pt(111) Open
Solid catalysts with ionic liquid layers (SCILLs) are heterogeneous catalysts whose selectivity is significantly improved by the application of a thin coating of an ionic liquid (IL). In this work, we studied the influence of the IL 1-ethy…