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相关论文: Coverage Dependent H$_2$ Desorption Energy: a Quan…

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We revisit the fundamental problem of liquid-liquid dewetting and perform a detailed comparison of theoretical predictions based on thin-film models with experimental measurements obtained by atomic force microscopy (AFM). Specifically, we…

流体动力学 · 物理学 2017-12-27 Dirk Peschka , Stefan Bommer , Sebastian Jachalski , Ralf Seemann , Barbara Wagner

A method for measurement of energy of high-energy particles by a thin calorimeter, is presented. The method is based on the correlation analysis of dependence of number of secondary particles, $N_e$, at observation level and the relation of…

天体物理仪器与方法 · 物理学 2013-10-22 A. Sh. Gaitinov , S. A. Ibraimova , I. A. LebedeV , A. I Lebedeva

We present a computational study into the adsorption properties of CO$_2$ on amorphous and crystalline water surfaces under astrophysically relevant conditions. Water and carbon dioxide are two of the most dominant species in the icy…

星系天体物理 · 物理学 2017-09-13 L. J. Karssemeijer , G. A. de Wijs , H. M. Cuppen

We present an extensive set of surface and chemisorption energies calculated using state of the art many-body perturbation theory. In the first part of the paper we consider ten surface reactions in the low coverage regime where…

材料科学 · 物理学 2018-02-01 Per Simmendefeldt Schmidt , Kristian Sommer Thygesen

The effects of hydrogen (H2) and deuterium (D2) absorption were studied in two Co/Pd multilayers with perpendicular magnetic anisotropy (PMA) using polarized neutron reflectivity (PNR). PNR was measured in an external magnetic field H…

材料科学 · 物理学 2015-05-27 K. Munbodh , F. A. Perez , C. Keenan , M. Zhernenkov , M. R. Fitzsimmon , D. Lederman

In the ground state of the doped two-leg Hubbard ladder there are power-law decaying d_{x^2-y^2}-type pairing correlations. It is important to know the strength and the temperature scale of these correlations. For this purpose, we have…

强关联电子 · 物理学 2009-11-11 N. Bulut , S. Maekawa

Hydrogen is deemed as an attractive energy carrier alternative to fossil fuels, and it is required to store for many applications. Physisorption is one of the promising ways to store H$_2$ for its practical applications. Covalent Organic…

材料科学 · 物理学 2021-11-05 Nilima Sinha , Srimanta Pakhira

We present an experimental technique for determining the pH and the total carbon concentration when \ch{CO2} diffuses and flows in water. The technique employs three different pH indicators, which, when combined with an image analysis…

流体动力学 · 物理学 2024-05-10 Hilmar Yngvi Birggison , Yao Xu , Marcel Moura , Eirik Grude Flekkøy , Knut Jørgen Måløy

Hydrogen segregation to vacancies in the surface and subsurface layers of (111) and (100) surfaces of Pd is studied in the density functional theory (DFT) approach. Adsorption energies and configurations of various clusters of H atoms at…

材料科学 · 物理学 2020-06-24 A. V. Subashiev , H. H. Nee

Subsurface porous rocks have the potential to store large volumes of hydrogen (H$_2$) required for transitioning towards a H$_2$-based energy future. Understanding the flow and trapping behavior of H$_2$ in subsurface storage systems, which…

流体动力学 · 物理学 2023-10-16 Zaid Jangda , Hannah Menke , Andreas Busch , Sebastian Geiger , Tom Bultreys , Kamaljit Singh

At low $x \cong Q^2/W^2 << 1$, in deep inelastic scattering, the photon fluctuates into a $q \bar q$ vector state that interacts via two gluons with the proton. The energy dependence is determined by the saturation scale, in our approach…

高能物理 - 唯象学 · 物理学 2007-05-23 Masaaki Kuroda , Dieter Schildknecht

Diffusion of atoms and molecules is a key process for the chemical evolution in the star forming regions of the interstellar medium. Accurate data on the mobility of many important interstellar species is however often not available and…

星系天体物理 · 物理学 2014-10-01 L. J. Karssemeijer , H. M. Cuppen

The ionization energy of ortho-H$_2$ has been determined to be $E^\mathrm{o}_\mathrm{I}(\mathrm{H}_2)/(hc)=124\,357.238\,062(25)$ cm$^{-1}$ from measurements of the GK(1,1)--X(0,1) interval by Doppler-free two-photon spectroscopy using a…

Molecular dynamics calculations have been performed to study the ultraviolet photodissociation of D2O in an amorphous D2O ice surface at 10-90 K, in order to investigate the influence of isotope effects on the photodesorption processes. As…

化学物理 · 物理学 2011-05-06 C. Arasa , S. Andersson , H. M. Cuppen , E. F. van Dishoeck , G. J. Kroes

Advanced telescopes, such as ALMA and JWST, are likely to show that the chemical universe may be even more complex than currently observed, requiring astrochemical modelers to improve their models to account for the impact of new data.…

星系天体物理 · 物理学 2017-08-07 E M Penteado , C Walsh , H M Cuppen

We present the detection of the average H$_2$ absorption signal in the overall population of neutral gas absorption systems at $z\sim 3$ using composite absorption spectra built from the Sloan Digital Sky Survey-III damped Lyman-$\alpha$…

星系天体物理 · 物理学 2018-05-02 Sergei Balashev , Pasquier Noterdaeme

The influence of elastic strains on the adsorption of H, O, and OH on the (111) surfaces of 8 fcc (Ni, Cu, Pd, Ag, Pt, Au, Rh, Ir) and on the (0001) surfaces of 3 hcp (Co, Zn, Cd) transition metals was analyzed by means of density…

材料科学 · 物理学 2021-10-13 Carmen Martínez-Alonso , José Manuel Guevara-Vela , Javier LLorca

We report the first six-dimensional quantum dynamical calculations of dissociative adsorption and associative desorption. Using a potential energy surface obtained by density functional theory calculations, we show that the initial decrease…

mtrl-th · 物理学 2009-10-28 Axel Gross , Steffen Wilke , Matthias Scheffler

Two-dimensional (2D) materials have received considerable attention as possible electrodes in Li-ion batteries (LIBs), although a deeper understanding of the Li adsorption behavior as well as broad screening of the materials space is still…

材料科学 · 物理学 2022-03-22 Sheng Gong , Shuo Wang , Taishan Zhu , Xi Chen , Jeffrey C. Grossman

We present a systematic analysis of molecular oxygen (O$_2$) adsorption trends on bimetallic PtNi clusters and their monometallic counterparts supported on MgO(100), by means of periodic DFT calculations for sizes between 25 up to 58 atoms.…

材料科学 · 物理学 2016-04-12 Lauro Oliver Paz-Borbon , Francesca Baletto