Sign in to download full-size image Fig. 1.2. The 1s orbitals of atomic hydrogen. In H2, there are 2 hydrogen atoms, each with a 1s orbital. These orbitals are pointing at each other along the z-axis, so they make sigma (σ) orbitals as shown in Fig. 1.3. There are 2 molecular ...
Sign in to download full-size image Fig. 1. Bond-centered model of the C-H complex in GaAs. In addition to the stretch (A1) mode, the C-H complex also has a low-frequency longitudinal mode (A1) in which the hydrogen and carbon oscillate in phase. For the 12C-H complex, this mode...
wherex,V(FeHx),V(Fe), andΔV(H) are the hydrogen concentration, atomic volumes of iron hydride and pure iron, and the volume expansion per hydrogen atom, respectively19. We used the equation of state of fcc iron reported by Tsujinoet al.20forV(Fe). Here,V(FeHx) and the hydrogen ...
Full size image (S)-(+)-carvone is a relatively simple natural compound containing one chiral center, but its low melting point (25.2 °C) frustrates determination of its molecular structure by single crystal X-ray diffraction in the absence of inclusion by a host35,36. This compound wa...
Atomic and molecular manipulations with the scanning tunnelling microscope (STM) lead to many fascinating advances during the last decade. Recent achieveme... SW Hla,G Meyer,KH Rieder - 《Chemphyschem》 被引量: 109发表: 2001年 Real-space imaging of interfacial water with submolecular resolution. ...
f TEM image of the Mo1N1C2, the insert is SAED pattern. g EDS maps for Mo1N1C2 material. h HRTEM and i AC-HAADF-STEM images of the Mo1N1C2. j Mo K-edge FT-EXAFS fitting curves of the Mo1N1C2. k Atomic structure model of the Mo1N1C2. l Polarization curves for the Mo1N1...
f The effect of oxygen adsorption on the electronic structure of Ru SAC [60] Full size image Interface engineering is also an admirable approach to modulating the electronic environment, exposing abundant active sites, promoting electron transfer, and optimizing the electrocatalytic activity [91, 92...
figure7.optical image and 21cm line image Reference Astronomical Spectroscopy, J. Tennyson An introduction to modern astrophysics, Bradley W. Carroll, Dale A. Ostlie 天体物理学,李宗伟,肖兴华 原子物理学,杨福家 星系天文学,施建荣译 Barnes D.G. ,2001MNRAS.322..486B ...
Sign in to download full-size image Fig. 46.Surface coverage of H as a function of H dosing time for atomic H dosing onto a bare reconstructed (2 × 1) surface (open circles) and onto a fully covered deuterium surface (open triangles). Reprinted with permission from [64], copyright 199...
Sign in to download hi-res image Fig. 28. (a) Photocatalytic hydrogen evolution as a function of catalyst dose, (b) influence of sacrificial agent on the hydrogen evolution, (c) hydrogen evolution at optimized conditions, and (d) energy band structure of Bi4O5Br2 and Bi4O5I2 [151]. ...