AI Article Synopsis
- The study examined how aluminum (Al) atoms interact with helium (He) droplets and gases like H2O and O2 at very low temperatures (0.37 K).
- At high concentrations of Al within the He droplets, Al atoms remain isolated instead of forming clusters, which is unusual for many elements.
- The research revealed that Al atoms primarily react with O2 to form AlO2, and although Al clusters can react with H2O, individual Al atoms do not interact with single H2O molecules.
Article Abstract
The doping of He droplets by Al atoms and their reactions with H(2)O and O(2) at T = 0.37 K was investigated. It was found that at high doping concentrations, the incorporated Al atoms do not aggregate to form clusters. They rather remain as separated atoms inside of the He droplets. Mass spectrometry and the recently developed depletion method have been applied to study the reactions. It was found that single Al atoms react with single O(2) molecules. The dominant product of this reaction occurring inside of the He droplets is AlO(2). The reaction between Al and O(2) clusters has also been detected. The Al clusters react with single H(2)O molecules or clusters. While single Al atoms react with H(2)O clusters, no reaction of single Al atoms with a single water molecule was found.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1021/jp112423v | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Anion-Directed Assembly of a Bimetallic Pd/Ag Nanocluster: Synthesis, Characterization, and HER Activity.
Molecules
January 2025
Department of Chemistry, National Dong Hwa University, Hualien 97401, Taiwan.
Palladium-doped silver nanoclusters (NCs) have been highlighted for their unique physicochemical properties and potential applications in catalysis, optics, and electronics. Anion-directed synthesis offers a powerful route to control the morphology and properties of these NCs. Herein, we report a novel Pd-doped Ag NC, [Pd(H)Ag(S){SP(OPr)}] (), synthesized through the inclusion of sulfide and hydride anions.
View Article and Find Full Text PDFThe Gas-Sensing Properties of Ag-/Au-Modified TiCT (T=O, F, OH) Monolayers for HCHO and CH Gases.
Molecules
January 2025
College of Engineering and Technology, Southwest University, Chongqing 400715, China.
Based on density functional theory calculations, this study analyzed the gas-sensing performance of TiCT (T=O, F, OH) monolayers modified with precious metal atoms (Ag and Au) for HCHO and CH gas molecules. Firstly, stable structures of Ag- and Au-single-atom doped TiCT (T=O, F, OH) surfaces were constructed and then HCHO and CH gas molecules were set to approach the modified structures at different initial positions. The most stable adsorption structure was selected for further analysis of the adsorption energy, adsorption distance, charge transfer, charge deformation density, total density of states, and partial density of states.
View Article and Find Full Text PDFCarbon Nanosphere-Based TiO Double Inverse Opals.
Molecules
January 2025
Institute of Physical Metallurgy, Metal Forming and Nanotechnology, University of Miskolc, H-3515 Miskolc, Hungary.
Inverse opals (IOs) are intensively researched in the field of photocatalysis, since their optical properties can be fine-tuned by the initial nanosphere size and material. Another possible route for photonic crystal programming is to stack IOs with different pore sizes. Accordingly, single and double IOs were synthesized using vertical deposition and atomic layer deposition.
View Article and Find Full Text PDFStructural, Electronic, and Magnetic Properties of Neutral Borometallic Molecular Wheel Clusters.
Materials (Basel)
January 2025
Faculty of Physics, University of Warsaw, Pasteura 5, PL-02093 Warsaw, Poland.
Atomic clusters exhibit properties that fall between those found for individual atoms and bulk solids. Small boron clusters exhibit planar and quasiplanar structures, which are novel materials envisioned to serve as a platform for designing nanodevices and materials with unique physical and chemical properties. Through past research advancements, experimentalists demonstrated the successful incorporation of transition metals within planar boron rings.
View Article and Find Full Text PDFEnhancing CO reduction with formamide-Ni@TiO catalyst.
J Environ Sci (China)
July 2025
State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China. Electronic address:
Formamide condensation with Ni can generate the NC structure, widely recognized as an efficient catalyst for electrocatalytic CO reduction reaction (CORR). To improve the utilization efficiency of Ni atoms, we introduced metal oxides as substrates to modulate the growth of a formamide-Ni (FA-Ni) condensate. FA-Ni@TiO demonstrated 2.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!