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We present and discuss the results of ab initio DFT plane-wave supercell calculations of the atomic and molecular oxygen adsorption and diffusion on the LaMnO3 (001) surface which serves as a model material for a cathode of solid oxide fuel…

Materials Science · Physics 2008-02-04 Eugene A. Kotomin , Yuri A. Mastrikov , Eugene Heifets , Joachim Maier

Chemisorption of CO on the stepped Cu(211) surface is studied within ab-initio density functional theory (DFT) and scanning tunneling microscopy (STM) imaging as well as manipulation experiments. Theoretically we focus on the experimentally…

Materials Science · Physics 2009-11-10 Marek Gajdos , Andreas Eichler , Jurgen Hafner , Gerhard Meyer , Karl-Heinz Rieder

Adsorption of a molecule or group with an atom which is less electronegative than oxygen (O) and directly interacting with the surface is very relevant to development of PtM (M=3d-transition metal) catalysts with high activity. Here, we…

Materials Science · Physics 2016-03-23 Satadeep Bhattacharjee , S. J. Yoo , Umesh V. Waghmare , S. C. Lee

Density functional theory within the generalized-gradient approximation is used to study the adsorption of the isocyanides CNH and CNCH3 on the gold (111) surface at several coverages. It is found that these molecules are highly selective…

Other Condensed Matter · Physics 2007-05-23 Yulia Gilman , Philip B. Allen , Mark S. Hybertsen

The ability to partially oxidize methane at low temperatures and pressures would have important environmental and economic applications. Although methane oxidation on gold nanoparticles has been observed experimentally, our density…

Materials Science · Physics 2014-08-28 Duncan J. Mowbray , Annapaola Migani , Guido Walther , David M. Cardamone , Angel Rubio

The ability of metal adsorption to transfer charge to the surface of single molecular carbon sheets is explored in this paper. Though other metals are considered we basically will deal with Lithium We concentrate on fairly small sheets and…

Materials Science · Physics 2008-01-14 Abraham F. Jalbout , Thomas H. Seligman

The relaxed geometries and electronic properties of the hydrogenated phases of the Si(111)-7$\times$7 surface are studied using first-principles molecular dynamics. A monohydride phase, with one H per dangling bond adsorbed on the bare…

Condensed Matter · Physics 2009-10-28 D. R. Alfonso , C. Noguez , D. A. Drabold , S. E. Ulloa

The adsorption of MgO molecules on a Fe(001) surface was studied using density functional theory (DFT) and projector augmented wave methods. The energetically most favored configurations for different adsorption sites considered were…

Materials Science · Physics 2015-12-10 D. Wiśnios , A. Kiejna , J. Korecki

We present results of wavepacket simulations of scattering of an oriented methane molecule from a flat surface including all nine internal vibrations. At a translational energy up to 96 kJ/mol we find that the scattering is almost…

Chemical Physics · Physics 2009-11-07 R. Milot , A. P. J. Jansen

The kinetics of hydrogen absorption by magnesium bulk is affected by two main activated processes: the dissociation of the H$_2$ molecule and the diffusion of atomic H into the bulk. In order to have fast absorption kinetics both activated…

Materials Science · Physics 2008-11-17 Monica Pozzo , Dario Alfe`

The formation of ordered phases of dimethyl-disulfide on the Au(111) surface has been investigated by means of Low-Energy Electron Diffraction (LEED), X-ray Photoemission Spectroscopy (XPS), and state-of-the-art Density Functional Theory…

Condensed Matter · Physics 2007-05-23 V. De Renzi , D. Marchetto , R. Biagi , U. del Pennino , R. Di Felice , A. Selloni

Geometry, electronic structure, and magnetic properties of methylthiolate-stabilized Au$_{25}$L$_{18}$ and MnAu$_{24}$L$_{18}$ (L = SCH$_3$) clusters adsorbed on noble-metal (111) surfaces have been investigated by using spin-polarized…

Atomic and Molecular Clusters · Physics 2015-06-03 Xi Chen , Mikkel Strange , Hannu Hakkinen

We report static and dynamic first-principles calculations that provide atomistic pictures of the initial stage of the oxidation processes occurring at the ($11\bar20$) surface of 4H-SiC. Our results unveil reaction pathways and their…

Materials Science · Physics 2017-02-15 Han Li , Yu-ichiro Matsushita , Mauro Boero , Atsushi Oshiyama

Graphene adsorption on Au(111) surface was explored to identify their common surface structures by means of van der Waals corrected density functional theory calculations. The alignment of graphene in the form of certain rotational angles…

Strongly Correlated Electrons · Physics 2020-05-13 Merve Yortanlı , Ersen Mete

Two dimensional transition metal dichalcogenides appear as good candidates for gas sensing and catalysis. Here, by means of density functional theory, we characterize the adsorption and dissociation of selected diatomic molecules (CO,…

Materials Science · Physics 2022-01-06 Raúl Bombín , Maite Alducin , Iñaki Juaristi

We investigate the adsorption of chlorine on the Cu(111) surface with full potential all-electron density functional calculations. Chlorine adsorption at the fcc hollow sites is slightly preferred over that at the hcp hollow. The adsorption…

Materials Science · Physics 2009-10-31 K. Doll , N. M. Harrison

Using the plane wave pseudopotential method within the density functional theory with the generalized gradient approximation for exchange and correlation potential, we have calculated adsorption energies (Ead), diffusion barriers and the…

Materials Science · Physics 2007-05-23 Sergey Stolbov , Talat S. Rahman

The adsorption of 1,4-benzenediamine (BDA) on the Au(111) surface and azobenzene on the Ag(111) surface is investigated using density functional theory (DFT) with a non-local density functional (vdW-DF) and a semi-local…

Materials Science · Physics 2014-01-07 Guo Li , Isaac Tamblyn , Valentino R. Cooper , Hong-Jun Gao , Jeffrey B. Neaton

Adsorption of acetylene on Si(100) is studied from first principles. We find that, among a number of possible adsorption configurations, the lowest-energy structure is a ``bridge'' configuration, where the C$_2$H$_2$ molecule is bonded to…

Condensed Matter · Physics 2009-10-31 Pier Luigi Silvestrelli , Flavio Toigo , Francesco Ancilotto

We have investigated theoretically the adsorption of molecules onto graphene with divacancy defects. Using ab-initio density functional calculations, we have found that O2, CO, N2, B2 and H2O molecules all interact strongly with a divacancy…

Materials Science · Physics 2015-05-13 Biplab Sanyal , Olle Eriksson , Ulf Jansson , Helena Grennberg