Ute Kaiser
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View article: Stationary Atoms in Liquid Metals and Their Role in Solidification Mechanisms
Stationary Atoms in Liquid Metals and Their Role in Solidification Mechanisms Open
According to common understanding, the primary difference between a liquid and a solid metal lies in atomic motion─atoms move rapidly in liquids, while they remain stationary in a solid lattice. The solidification process involves a transi…
View article: Sulfophenylated centimeter-sized graphene membrane in a direct methanol fuel cell
Sulfophenylated centimeter-sized graphene membrane in a direct methanol fuel cell Open
An ideal proton exchange membrane should only allow protons to pass and remain impermeable to fuels, as required in fuel cell applications. In methanol fuel cells, high proton conductivity enables high power density, whereas methanol cross…
View article: Structure of metal-organic framework nanocrystals obtained from electron diffraction data by iterative phase retrieval
Structure of metal-organic framework nanocrystals obtained from electron diffraction data by iterative phase retrieval Open
We demonstrate the iterative phase retrieval of DUT-8(Ni) metal-organic framework (MOF) nanocrystals using high-resolution electron diffraction data. The reconstructed images show contrast features associated with the crystal structure, re…
View article: Polyoxometalate Aerogels Formed by Organofunctionalized Anderson Polyoxometalates as Low Molecular Weight Gelators
Polyoxometalate Aerogels Formed by Organofunctionalized Anderson Polyoxometalates as Low Molecular Weight Gelators Open
Polyoxometalate‐based aerogels, built through supramolecular interactions and metal coordination, have the potential to expand the field of smart materials. Here, the first example of the conversion of an Anderson‐polyoxometalate‐based org…
View article: Chemical analysis of spherical and fiber structures on lithium-ion batteries anodes using SEM, EDS and SIMS
Chemical analysis of spherical and fiber structures on lithium-ion batteries anodes using SEM, EDS and SIMS Open
Scanning electron microscopy (SEM), when combined with secondary ion mass spectrometry (SIMS) enables spatially resolved detection of lithium. The time-of-flight detector allows the precise identification of each fragment. Quantitative res…
View article: Atomic-Scale Imaging of Transformation of Nickel Nanocrystals to Nickel Carbides in Real Time
Atomic-Scale Imaging of Transformation of Nickel Nanocrystals to Nickel Carbides in Real Time Open
Transition of metal-to-metal carbide plays a key role in heterogeneous catalysis. We confined nickel nanocrystals in single-walled carbon nanotubes, stimulated delivery of carbon atoms by the 80 keV electron beam, and imaged the entire car…
View article: Comprehensive benchmarking and user guide for the characterization of CVD-grown transition metal chalcogenides
Comprehensive benchmarking and user guide for the characterization of CVD-grown transition metal chalcogenides Open
Since the discovery of graphene in 2004, there has been rapid progress in research on two-dimensional (2D) material’s potential applications with significant impact. Efforts to bring 2D materials closer to industrial production, quality as…
View article: High‐Performance Phototransistor Based on a 2D Polybenzimidazole Polymer
High‐Performance Phototransistor Based on a 2D Polybenzimidazole Polymer Open
Photodetectors are fundamental components of modern optoelectronics, enabling the conversion of light into electrical signals. The development of high‐performance phototransistors necessitates materials with both high charge carrier mobili…
View article: Bulk and Surface Reactivity of LiNi<sub>0.5</sub>Mn<sub>1.5</sub>O<sub>4</sub> in Contact with (Acidic) Water
Bulk and Surface Reactivity of LiNi<sub>0.5</sub>Mn<sub>1.5</sub>O<sub>4</sub> in Contact with (Acidic) Water Open
Lithium‐ion battery cathode materials such as LiNi 0.5 Mn 1.5 O 4 (LNMO) are very sensitive to water, which has so far hindered the successful commercialization of aqueous electrode processing strategies. Herein, a detailed investigation o…
View article: Flexible Selenium Nanowires with Tuneable Electronic Bandgaps
Flexible Selenium Nanowires with Tuneable Electronic Bandgaps Open
Manipulating semiconductor properties without altering their chemical composition holds promise for electronic and optical materials. However, linking atomic positions in nanomaterials to their functional properties is challenging due to t…
View article: The role of carbon catalyst coatings in the electrochemical water splitting reaction
The role of carbon catalyst coatings in the electrochemical water splitting reaction Open
Designing inexpensive, sustainable, and high-performance oxygen-evolution reaction (OER) electrocatalysts is one of the largest obstacles hindering the development of new electrolyzers. Carbon-coated metal/metal oxide (nano)particles have …
View article: Unveiling high-mobility hot carriers in a two-dimensional conjugated coordination polymer
Unveiling high-mobility hot carriers in a two-dimensional conjugated coordination polymer Open
View article: The Zr<sub>8</sub>O<sub>6</sub> Secondary Building Unit and Porphyrin Linker Catalyze Light‐Driven H<sub>2</sub> Evolution in Porphyrin‐Based Metal Organic Frameworks
The Zr<sub>8</sub>O<sub>6</sub> Secondary Building Unit and Porphyrin Linker Catalyze Light‐Driven H<sub>2</sub> Evolution in Porphyrin‐Based Metal Organic Frameworks Open
The four Zr 8 O 6 ‐based metal‐organic frameworks (MOFs), porous coordination network (PCN) 221 M, comprising earth‐abundant metalloporphyrin tetracarboxylate (M‐TCPP, M: 2 H, Zn, Ni, and a mixture of 1:1 Zn and Ni), are investigated for l…
View article: Enhanced and Durable Light‐Driven Hydrogen Evolution by Cobalt‐Based Prussian Blue Analogs in Phospholipid Bilayers
Enhanced and Durable Light‐Driven Hydrogen Evolution by Cobalt‐Based Prussian Blue Analogs in Phospholipid Bilayers Open
Light‐driven hydrogen (H 2 ) evolution in water is performed using a series of cobalt‐based Prussian blue analogs (MCo PBAs) with M II 3 [Co III (CN) 6 ] 2 , M = Co, Ni, Cu, Zn embedded in phospholipid bilayers with the amphiphilic ruthen…
View article: In Situ Monitoring of Copper Benzenehexathiol Coordination Polymer Formation via High-Resolution Liquid-Cell Transmission Electron Microscopy
In Situ Monitoring of Copper Benzenehexathiol Coordination Polymer Formation via High-Resolution Liquid-Cell Transmission Electron Microscopy Open
View article: Beyond the band edge: Unveiling high-mobility hot carriers in a two-dimensional conjugated coordination polymer
Beyond the band edge: Unveiling high-mobility hot carriers in a two-dimensional conjugated coordination polymer Open
Hot carriers, inheriting excess kinetic energy from high-energy photons, underpin numerous optoelectronic applications involving non-equilibrium transport processes. Current research on hot carriers has predominantly focused on inorganic m…
View article: Mn<sup>2+</sup> and [Ru(bpy)<sub>3</sub>]<sup>2+</sup> in UiO-67 metal organic frameworks enhance photocatalytic oxidation of benzylamine <i>via</i> an electron transfer pathway
Mn<sup>2+</sup> and [Ru(bpy)<sub>3</sub>]<sup>2+</sup> in UiO-67 metal organic frameworks enhance photocatalytic oxidation of benzylamine <i>via</i> an electron transfer pathway Open
A UiO-67 MOF functionalized with [Ru(bpy) 3 ] 2+ and Mn 2+ ions is active in light-driven amine oxidation. The oxidation via photosensitized singlet oxygen and electron transfer to manganese was evaluated.
View article: Tailored photoactivity of 2D nanosheets synthesized by electron irradiation of metal–organic Ru( <scp>ii</scp> ) monolayers
Tailored photoactivity of 2D nanosheets synthesized by electron irradiation of metal–organic Ru( <span>ii</span> ) monolayers Open
This work presents the modular preparation of photoactive 2D nanosheets from self-assembled Ru( ii ) polypyridine complexes, exploring substituent effects on formation and stability, as well as the nanosheet’s electrochemical and optoelect…
View article: Exploring the potential of high-resolution continuum source graphite furnace atomic absorption spectrometry for the analysis of gold nanoparticles in the single-digit size range
Exploring the potential of high-resolution continuum source graphite furnace atomic absorption spectrometry for the analysis of gold nanoparticles in the single-digit size range Open
View article: Bring your paper into the ‘Fast Lane’ of the editorial process and increase your changes for final acceptance in Micron, The International Research and Review Journal for Microscopy – Part II
Bring your paper into the ‘Fast Lane’ of the editorial process and increase your changes for final acceptance in Micron, The International Research and Review Journal for Microscopy – Part II Open
It has been ten years since the Editors of Micron contributed an editorial offering tips and tricks to help potential contributors navigate the editorial process and improve their chances of manuscript acceptance. In this contribution, we …
View article: Multiscale Defective Interfaces for Realizing Na‐CO<sub>2</sub> Batteries With Ultralong Lifespan
Multiscale Defective Interfaces for Realizing Na‐CO<sub>2</sub> Batteries With Ultralong Lifespan Open
Despite their favorable high energy density and potential for CO 2 recycling, Na‐CO 2 batteries have been held back by limitations in cycling capability, stemming from the sluggish CO 2 reduction/evolution reaction (CO 2 RR/CO 2 ER) kineti…
View article: Inert Liquid Exfoliation and Langmuir-Type Thin Film Deposition of Semimetallic Metal Diborides
Inert Liquid Exfoliation and Langmuir-Type Thin Film Deposition of Semimetallic Metal Diborides Open
Graphite is one of only a few layered materials that can be exfoliated into nanosheets with semimetallic properties, which limits the applications of nanosheet-based electrodes to material combinations compatible with the work function of …
View article: Sulfophenylated centimeter-size graphene membrane in a direct methanol fuel cell
Sulfophenylated centimeter-size graphene membrane in a direct methanol fuel cell Open
An ideal proton exchange membrane should only permeate protons and be leak-tight for fuels. Graphene is impermeable to water and poorly conducting to protons. Next to long-term stability an ideal and optimized proton exchange membrane ther…
View article: Publisher Correction: Elastic films of single-crystal two-dimensional covalent organic frameworks
Publisher Correction: Elastic films of single-crystal two-dimensional covalent organic frameworks Open
View article: Wafer scale and substrate-agnostic growth of MoS2 nanowalls for efficient electrocatalytic hydrogen generation in acidic and alkaline media
Wafer scale and substrate-agnostic growth of MoS2 nanowalls for efficient electrocatalytic hydrogen generation in acidic and alkaline media Open
Emerging as a promising alternative to expensive platinum-based catalysts for electrocatalytic hydrogen evolution reaction (HER), molybdenum disulfide (MoS2) stands out for its favourable thermodynamic properties. However, the catalytic ac…
View article: TEM-processed defect densities in single-layer TMDCs and their substrate-dependent signature in PL and Raman spectroscopy
TEM-processed defect densities in single-layer TMDCs and their substrate-dependent signature in PL and Raman spectroscopy Open
The optical properties of the direct-bandgap transition metal dichalcogenides (TMDCs) MoS 2 and WS 2 are heavily influenced by their atomic defect structure and substrate interaction. In this work we use low-voltage chromatic and spherical…
View article: In Situ TEM Investigation of the Lithiation and Delithiation Process Between Graphene Sheets in the Presence of Atomic Defects
In Situ TEM Investigation of the Lithiation and Delithiation Process Between Graphene Sheets in the Presence of Atomic Defects Open
Using advanced in situ transmission electron microscopy, the lithiation and delithiation processes into graphene sheets are studied and significant differences are detected in the structural evolution of the system. Thin fcc lithium crysta…
View article: The Role of Carbon Catalyst Coatings in the Electrochemical Water Splitting Reaction
The Role of Carbon Catalyst Coatings in the Electrochemical Water Splitting Reaction Open
The availability of efficient electrocatalysts is key to the development of next-generation electrolyzers for water splitting to produce so-called ‘green hydrogen’ for a future hydrogen economy. The oxygen-evolution reaction (OER) is one h…
View article: Metal Alloy‐Functionalized 3D‐Printed Electrodes for Nitrate‐to‐Ammonia Conversion in Zinc‐Nitrate Batteries
Metal Alloy‐Functionalized 3D‐Printed Electrodes for Nitrate‐to‐Ammonia Conversion in Zinc‐Nitrate Batteries Open
Electrocatalytic nitrate reduction is a promising approach to remove harmful nitrate and produce ammonia in aqueous media. Here, we demonstrate how 3D printed polymer electrodes can be electroless plated with a bimetallic NiCu alloy film s…
View article: Defect Density and Atomic Defect Recognition in the Middle Layer of a Trilayer MoS<sub>2</sub> Stack
Defect Density and Atomic Defect Recognition in the Middle Layer of a Trilayer MoS<sub>2</sub> Stack Open
Molybdenum disulfide (MoS2) is one of the most intriguing two-dimensional materials, and moreover, its single atomic defects can significantly alter the properties. These defects can be both imaged and engineered using spherical…