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相关论文: A Density Functional Study of Atomic Hydrogen Adso…

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Atomic oxygen adsorption on the Mo(112) surface has been investigated by means of first-principles total energy calculations. Among the variety of possible adsorption sites it was found that the bridge sites between two Mo atoms of the…

材料科学 · 物理学 2007-05-23 Adam Kiejna , R. M. Nieminen

We study adsorption sites of a single Xe adatom on Nb(110) surface using a density functional theory approach: The on-top site is the most favorable position for the adsorption. We compare the binding features of the present study to…

材料科学 · 物理学 2015-06-03 S. Dag , M. Shaughnessy , C. Y. Fong , X. D. Zhu , L. H. Yang

The potential energy surface (PES) of dissociative adsorption of H_2 on Pd(100) is investigated using density functional theory and the full-potential linear augmented plane wave (FP-LAPW) method. Several dissociation pathways are…

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

Adsorption in nanoporous materials is one strategy that can be used to store hydrogen at conditions of temperature and pressure that are economically viable. Adsorption capacity of nanoporous materials depends on surface area which can be…

材料科学 · 物理学 2024-05-28 Siddharth Gautam , David R. Cole , Zoltán Imre Dudás , Indu Dhiman

Using density-functional theory we investigate several properties of Al(111), Al(100), Al(110), and stepped Al(111) surfaces. We report results of formation energies of surfaces, steps, adatoms, and vacancies. For the adsorption and…

mtrl-th · 物理学 2008-02-03 Roland Stumpf , Matthias Scheffler

We performed high-dimensional quantum dynamical calculations of the dissociative adsorption and associative desorption of hydrogen on Cu(111). The potential energy surface (PES) is obtained from density functional theory calculations. Two…

mtrl-th · 物理学 2009-10-28 A. Gross , B. Hammer , M. Scheffler , W. Brenig

Using helium-3 atom scattering, we have studied the adsorption kinetics, the structure and the diffusional dynamics of atomic hydrogen on the surface of a graphene monolayer on Ni(111). Diffraction measurements reveal a 4$^\circ$ rotated…

介观与纳米尺度物理 · 物理学 2022-12-15 Emanuel Bahn , Anton Tamtögl , John Ellis , William Allison , Peter Fouquet

The extent of hydrogen coverage of the Si(001)c(4x2) surface in the presence of hydrogen gas has been studied with dispersion corrected density functional theory. Electronic energy contributions are well described using a hybrid functional.…

化学物理 · 物理学 2016-06-09 Phil Rosenow , Ralf Tonner

In this work, we have studied the hydrogen adsorption-desorption properties and storage capacities of Li functionalized [2,2,2]paracyclophane (PCP222) using dispersion-corrected density functional theory and molecular dynamic simulation.…

化学物理 · 物理学 2023-01-11 Rakesh K. Sahoo , Sridhar Sahu

Recently, the hydrogen adsorption and diffusion on the CeO2 (111) surface have been a vividly discussed topic because of its outstanding catalytic activity and selectivity in hydrogenation reactions. However, for the strongly reduced CeO2…

材料科学 · 物理学 2019-05-01 Xiaoke Li , Joachim Paier , Joachim Sauer

This work reports the hydrogen storage, and delivery capacities of Sc and Y functionalized [1,1]paracyclophane using dispersion corrected density functional theory calculations. The Sc and Y atoms are bind strongly with benzene rings of…

化学物理 · 物理学 2022-03-01 Rakesh K. Sahoo , P. Kour , Sridhar Sahu

The in-depth understanding of hydrogen permeation through plutonium-oxide overlayers is the prerequisite to evaluate the complex hydriding induction period of Pu. In this work, the incorporation, diffusion and dissolution of hydrogen in…

材料科学 · 物理学 2020-02-17 Le Zhang , Bo Sun , Qili Zhang , Haifeng Liu , Kezhao Liu , Haifeng Song

Adsorption of hydrogen atoms on a single graphite sheet (graphene) has been investigated by first-principles electronic structure means, employing plane-wave based, periodic density functional theory. A reasonably large 5x5 surface unit…

材料科学 · 物理学 2009-11-13 Simone Casolo , Ole Martin Lovvik , Rocco Martinazzo , Gian Franco Tantardini

The adsorption of a collagen fragment on both a hydrophobic, hydrogen-terminated and a hydrophilic, natively oxidised Si surface is investigated using all-atom molecular dynamics. While favourable direct protein-surface interactions via…

软凝聚态物质 · 物理学 2019-03-27 Daniel J. Cole , Mike C. Payne , Lucio Colombi Ciacchi

In this work, we studied the hydrogen adsorption-desorption properties and storage capacities of Ti functionalized [2,2,2]paracyclophane (PCP222) using density functional theory and molecular dynamic simulation. The Ti atom was bonded…

化学物理 · 物理学 2023-01-11 Rakesh K. Sahoo , Sridhar Sahu

Protons at the water/vapor interface are relevant for atmospheric and environmental processes, yet to characterize their surface affinity on the quantitative level is still challenging. Here we utilize phase-sensitive sum-frequency…

化学物理 · 物理学 2019-08-27 Kuo-Yang Chiang , Laetitia Dalstein , Yu-Chieh Wen

Water-metal interfaces are ubiquitous and play a key role in many chemical processes, from catalysis to corrosion. Whereas water adlayers on atomically flat transition metal surfaces have been investigated in depth, little is known about…

材料科学 · 物理学 2013-05-08 Davide Donadio , Luca M. Ghiringhelli , Luigi Delle Site

Nowadays, electrochemical reduction of CO$_2$ has been considered as an effective method to solve the problem of global warming. The primary challenge in studying the mechanism is to determine the adsorption states of CO$_2$, since…

化学物理 · 物理学 2020-07-03 Shuai Guo , Yao Li , Lei Liu , Xiangping Zhang , Suojiang Zhang

Chemical adsorption of the species at semiconductor surfaces is analyzed showing the existence of the two contributions to adsorption energy: bond creation and charge transfer. It is shown that the energy of quantum surface states is…

材料科学 · 物理学 2013-08-20 Stanislaw Krukowski , Pawel Kempisty , Pawel Strak

Plutonium dihydride and trihydride show strikingly similar crystal structures when viewed as close-packed Pu planes with ABC and AB stacking, respectively. The similarity serves as a framework for density functional theory (DFT)…

材料科学 · 物理学 2013-07-03 Sven P. Rudin