Category Ranking
98%
Total Visits
921
Avg Visit Duration
2 minutes
Citations
20
Article Abstract
We demonstrate liquid-jet photoelectron spectroscopy from a flatjet formed by the impingement of two micron-sized cylindrical jets of different aqueous solutions. Flatjets provide flexible experimental templates enabling unique liquid-phase experiments that would not be possible using single cylindrical liquid jets. One such possibility is to generate two co-flowing liquid-jet sheets with a common interface in vacuum, with each surface facing the vacuum being representative of one of the solutions, allowing face-sensitive detection by photoelectron spectroscopy. The impingement of two cylindrical jets also enables the application of different bias potentials to each jet with the principal possibility to generate a potential gradient between the two solution phases. This is shown for the case of a flatjet composed of a sodium iodide aqueous solution and neat liquid water. The implications of asymmetric biasing for flatjet photoelectron spectroscopy are discussed. The first photoemission spectra for a sandwich-type flatjet comprised of a water layer encapsulated by two outer layers of an organic solvent (toluene) are also shown.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1063/5.0155182 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Formation of surfaces oxide vacancies in porous ZnCoO nanoflowers for enhanced energy storage performance.
Discov Nano
September 2025
Henan Key Laboratory of Diamond Optoelectronic Materials and Devices, Key Laboratory of Integrated Circuit, Ministry of Education, School of Physics, Zhengzhou University, Zhengzhou, 450052, China.
A cost-effective and large-scale method for synthesizing ZnCoO nanoflowers with surface oxygen vacancies as electrode materials for supercapacitors is presented. The existence of oxygen vacancies on the surface of the ZnCoO nanoflowers has been confirmed through X-ray photoelectron spectroscopy (XPS). The energy bands and density of states (DOS) of ZnCoO are examined using density functional theory, revealing that treatment with NaBH reduces the band gap of ZnCoO while increasing the DOS near the Fermi level compared to pristine ZnCoO.
View Article and Find Full Text PDFSurface-Driven Electron Localization and Defect Heterogeneity in Ceria.
J Am Chem Soc
September 2025
Kathleen Lonsdale Materials Chemistry, Department of Chemistry, University College London, London WC1H 0AJ, U.K.
The exceptional performance of ceria (CeO) in catalysis and energy conversion is fundamentally governed by its defect chemistry, particularly oxygen vacancies. The formation of each oxygen vacancy (V) is assumed to be compensated by two localized electrons on cations (Ce). Here, we show by combining theory with experiment that while this 1 V: 2Ce ratio accounts for the global charge compensation, it does not apply at the local scale, particularly in nanoparticles.
View Article and Find Full Text PDFInfluence of the Metal Support─Catalyst Contact on the Performance of NiO-Based O Evolution Electrocatalysts.
ACS Appl Mater Interfaces
September 2025
Surface Science Laboratory, Department of Materials and Geosciences, Technical University of Darmstadt, Peter-Grünberg-Straße 4, 64287 Darmstadt, Germany.
The performance of NiO-based electrocatalysts for the oxygen evolution reaction (OER) is strongly influenced by the interface between the metal support (current collector) and the catalyst layer, which modulates electronic properties and electrochemical activity. This study systematically investigates the solid-solid interface behavior of NiO thin films prepared by reactive magnetron sputtering on Pt, Au, and Ni, followed by electrochemical characterization. Stepwise NiO deposition and X-ray photoelectron spectroscopy reveal distinct band alignment and electronic structure differences at the metal-catalyst interface.
View Article and Find Full Text PDFInnovative Sulfur-Modified TiO-Loaded SiO Nanocomposite: Unveiling Superior Removal Performance of Contaminants in Waste Oil.
Langmuir
September 2025
State Grid Hubei Electric Power Xiaogan Power Supply Co., Xiaogan 430075, China.
Corrosive sulfur compounds and trace moisture were key factors causing the rapid deterioration of finished mineral oils. In power systems, insulating oil contaminated by such substances not only threatens the stable operation of power equipment but also transforms into hazardous waste due to performance degradation. This study innovatively developed a sulfur-modified TiO-loaded SiO nanocomposite (S-nTDSGS) adsorbent, which was comprehensively characterized by scanning electron microscopy, X-ray photoelectron spectroscopy, and specific surface area analysis.
View Article and Find Full Text PDFKCuS: A Layered Inorganic Chalcogenide Semiconductor as a Promising Light Absorber.
Inorg Chem
September 2025
Department of Energy Science and Engineering, Indian Institute of Technology Bombay, Mumbai 400076, India.
A potential replacement that alleviates the shortcomings of the dominant light absorber materials used in solar photovoltaics has been synthesized, and its microstructural, electronic structure, and optical properties have been investigated. KCuS crystals were synthesized by the carbonate method. Transmission electron microscopy (TEM) established [010] as the growth direction of the needle-like monoclinic crystals.
View Article and Find Full Text PDF