High coverage NO overlayers on Pd(lll) were studied by LEED and vibrational infrared spectroscopy under equilibrium adsorption conditions. Three ordered, coincident site superlattices were found to exist at NO coverages of 0.5, 0.625 and 0.75 monolayers (ML). Structural models have been proposed to give a consistent interpretation to both the LEED and vibrational infrared data. In particular, t...

The intermetallic compound InPd (CsCl type of crystal structure with a broad compositional range) is considered as a candidate catalyst for the steam reforming of methanol. Single crystals of this phase have been grown to study the structure of its three low-index surfaces under ultra-high vacuum conditions, using low energy electron diffraction (LEED), X-ray photoemission spectroscopy (XPS), a...

This study intends to do architectural and structural designs of a sustainable industrial building using BIM LEED as well compare the non-LEED building. In this scope, additional costs related water energy efficient systems were analyzed calculate respective break-even points. Literature review case performed achieve research objective. study, reinforced concrete was designed via Autodesk Revit...

The determination of quasicrystal QC surface structures is a challenge to current surface structure techniques. Low-energy electron diffraction LEED is the primary technique for the determination of periodic surface structures, but application of dynamical LEED to quasicrystals requires the use of many approximations. In this study, two different approaches were used to apply dynamical LEED to ...

Pd-Sn bimetallic model catalysts were prepared as alloy films on a Rh(100) substrate via physical vapor deposition. The surface composition, structure, and chemisorption properties were studied by low energy ion scattering spectroscopy (LEIS), low energy electron diffraction (LEED), X-ray photoelectron spectroscopy (XPS), infrared reflection adsorption spectroscopy (IRAS), and temperature progr...

We have studied the ~001! surface of a Fe3O4 single crystal using scanning tunneling microscopy ~STM!, low-energy electron diffraction ~LEED!, and Auger electron spectroscopy. A clean surface was obtained by a combination of Ar ion sputtering, in situ annealing in O2 atmosphere, and further annealing in ultra high vacuum conditions. A sharp (A23A2)R45° reconstruction was observed by LEED and ST...

We have characterized the structural properties of submonolayer amounts of Zn on Pd(111) using scanning tunneling microscopy (STM) and spot-profile analysis low energy electron diffraction (SPA-LEED). Following room temperature deposition of ≈0.06 monolayers (ML) Zn onto Pd(111), we observe the substitution of Zn for Pd in the surface layer. At ≈0.20 ML of deposited Zn, STM reveals a locally or...

We investigate the atomic structure of the fivefold surface of an icosahedral AlCu-Fe alloy, using scanning tunneling microscopy (STM) imaging and a special dynamical low energy-electron diffraction (LEED) method. STM indicates that the step heights adopt (primarily) two values in the ratio of tau, but the spatial distribution of these two values does not follow a Fibonacci sequence, thus break...

Leadership in Energy and Environmental Design (LEED) certified buildings aim to offer a sustainable healthy building environment. Previous studies have shown mixed inconsistent results on whether occupants LEED-certified are more satisfied than non-LEED-certified counterparts. Those usually based surveys or questionnaires for commercial were limited by sample size pre-defined question structure...