Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1103/physrevb.46.7581 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Initial Carbonation of Ni(111) Surfaces.
ACS Appl Mater Interfaces
January 2025
Department of Chemistry, The University of Texas at San Antonio, San Antonio, Texas 78249, United States.
Understanding the carbon formation on Ni surfaces is critical for the controlled Ni-based nanofabrication and heterogeneous catalysis. Due to the high solubility of carbon in nickel and the complicated migrations of carbon in the near-surface area, achieving a fundamental understanding of the initial carbonation of a Ni surface at an atomic level is experimentally challenging. Herein, the initial formation of surface carbon adsorbates on Ni(111) from the Boudouard reaction (2CO ↔ CO + C) is studied by scanning tunneling microscopy (STM) in combination with density functional theory (DFT) calculations.
View Article and Find Full Text PDFAnion-Responsive π-Conjugated Macrocycles That Form Ordered Structures.
Chem Asian J
January 2025
Ritsumeikan University, Department of Applied Chemistry, College of Life Sciences, 1-1-1 Nojihigashi, 525-8577, Kusatsu, JAPAN.
In this study, anion-responsive π-conjugated macrocycles were synthesized to demonstrate anion-binding and ion-pairing properties along with the ordered structures. Ion-pairing charge-by-charge assembly of a [1+2]-type complex of a macrocycle as a pseudo π-electronic anion and a countercation was revealed by single-crystal X-ray analysis. Further, two-dimensional (2D) arrays of the macrocycles bearing alkoxy chains, exhibiting anion-driven disordered structures, were constructed on a highly oriented pyrolytic graphite (HOPG) substrate as observed by scanning tunneling microscopy (STM).
View Article and Find Full Text PDFDirect Observation of Anisotropic Coulomb Interaction in a Topological Nodal Line Semimetal.
Adv Sci (Weinh)
January 2025
Department of Physics, Chung-Ang University, Seoul, 06974, Republic of Korea.
The fundamental characteristics of collective interactions in topological band structures can be revealed by the exploration of charge screening in topological materials. In particular, distinct anisotropic screening behaviors are predicted to occur in Dirac nodal line semimetals (DNLSMs) due to their peculiar anisotropic low-energy dispersion. Despite the recent extensive theoretical research, experimental observations of exotic charge screening in DNLSMs remain elusive, which is partly attributed to the coexisting trivial bands near the Fermi energy.
View Article and Find Full Text PDFGeometric Effects on C-C Coupling of Aryl-Carbenes under 2D Confinement.
Chemistry
January 2025
Ruhr University Bochum: Ruhr-Universitat Bochum, Organic Chemistry II, GERMANY.
It is well established that the confinement of reactants to two dimensions influences their reactivity. However, such confinement is often dominated by charge transfer effects between the reactants and the confining walls, in particular if the walls are conductive. Also, the reactivity of carbenes on metal surfaces is significantly affected by the charge transfer between the carbene and the metal, rendering the carbene more nucleophilic or electrophilic.
View Article and Find Full Text PDFTunable in-plane conductance anisotropy in 2D semiconductive AgCrPS by ion-electron co-modulations.
Sci Adv
January 2025
Institute of Technology for Carbon Neutrality, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, PR China.
In-plane anisotropic two-dimensional (2D) semiconductors have gained much interest due to their anisotropic properties, which opens avenues in designing functional electronics. Currently reported in-plane anisotropic semiconductors mainly rely on crystal lattice anisotropy. Herein, AgCrPS (ACPS) is introduced as a promising member to the anisotropic 2D semiconductors, in which, both crystal structure and ion-electron co-modulations are used to achieve tunable in-plane conductance anisotropy.
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!