Category
Surface science
Related publications (1,000)
Improving time-resolution and sensitivity of in situ X-ray photoelectron spectroscopy of a powder catalyst by modulated excitation
Davide Ferri, Oliver Kröcher, Filippo Buttignol
Ambient pressure X-ray photoelectron spectroscopy (APXPS) is a powerful tool to characterize the surface structure of heterogeneous catalysts in situ. In order to improve the time resolution and the signal-to-noise (S/N) ratio of photoemission spectra, we ...
ROYAL SOC CHEMISTRY2023Anisotropic In-Plane strain engineering Ni(OH)2 to activate alkaline hydrogen evolution reaction
Realizing a hydrogen economy strongly requires alkaline water electrolysis to achieve large-scale generation of H2, but lacks stable and efficient catalysts. The insufficient active sites in Ni(OH)2 impair the catalytic performance of alkaline HER. Herein, ...
ELSEVIER SCIENCE SA2023Revealing the Formation Dynamics of Janus Polymer Particles: Insights from Experiments and Molecular Dynamics
Seeded emulsion polymerization is one of the best-known methods for preparing polymer particles with a controlled size, composition, and shape. It first requires the preparation of seed particles, which are then swollen with additional monomer (the same as ...
Washington2023Grand canonical Brownian dynamics simulations of adsorption and self-assembly of SAS-6 rings on a surface
Pierre Gönczy, Niccolo Banterle
The Spindle Assembly Abnormal Protein 6 (SAS-6) forms dimers, which then self-assemble into rings that are critical for the nine-fold symmetry of the centriole organelle. It has recently been shown experimentally that the self-assembly of SAS-6 rings is st ...
AIP Publishing2023Pathways to enhance electrochemical CO2 reduction identified through direct pore-level modeling
Sophia Haussener, Etienne Boutin, Evan Fair Johnson, Shuo Liu
Electrochemical conversion of CO2 to fuels and valuable products is one pathway to reduce CO2 emissions. Electrolyzers using gas diffusion electrodes (GDEs) show much higher current densities than aqueous phase electrolyzers, yet models for multi-physical ...
2023Morphology of Nanostructured Tantalum Oxide Controls Stem Cell Differentiation and Improves Corrosion Behavior
Tantalum is receiving increasing attention in the biomedical field due to its biocompatible nature and superior mechanical properties. However, the bioinert nature of tantalum still poses a challenge and limits its integration into the bone tissue. To addr ...
Washington2023Controlled Surface Modification to Revive Shallow NV- Centers
Klaus Kern, Aparajita Singha, Dinesh Kevin Mathais Pinto
Near-surface negatively charged nitrogen vacancy (NV) centers hold excellent promise for nanoscale magnetic imaging and quantum sensing. However, they often experience charge-state instabilities, leading to strongly reduced fluorescence and NV coherence ti ...
2023Charging and Electric Field Effects on Hydrogen Molecules Physisorbed on Graphene
Klaus Kern, Shai Mangel, Alessio Scavuzzo, Tobias Wollandt
Molecular hydrogen adsorbed on graphene was investigated by analyzing rotational excitation spectra obtained with a gate-tunable scanning tunneling microscope (STM). Through the shift of the rotational excitation energy, the tunability of physisorbed H2 on ...
AMER CHEMICAL SOC2023Selectively Exciting and Probing Radiative Plasmon Modes on Short Gold Nanorods by Scanning Tunneling Microscope-Induced Light Emission
Olivier Martin, Andreas Stemmer, Yalan Ma
We study the plasmon modes of gold nanorods (as short as similar to 100 nm) on a nonmetallic conductive substrate using scanning tunneling microscope-induced light emission (STM-LE) with a nonplasmonic tungsten tip at room temperature in high vacuum (10-7 ...
AMER CHEMICAL SOC2023Hydrogel-Encased Photonic Microspheres with Enhanced Color Saturation and High Suspension Stability
Regular arrays of colloidal particles can produce striking structural colors without the need for any chemical pigments. Regular arrays of colloidal particles can be processed into microparticles via emulsion templates for use as structural colorants. Phot ...
Washington2023