The Adsorption and Diffusion Manners of Hydrogen Atoms on Pt (100), Pt (110), and Pt (111) Surfaces

Adsorption and reaction of acetaldehyde on Pt(111) and Sn/Pt(111) surface alloys

Adsorption and reaction of acetaldehyde (CH3CHO) on Pt(1 1 1) and two ordered Pt–Sn alloys has been studied primarily by using temperature-programmed desorption (TPD) mass spectrometry and high-resolution electron-energy loss spectroscopy (HREELS). The two alloys investigated were the (2 · 2) and ( p 3 p3)R30 Sn/Pt(1 1 1) surface alloys with hSn 1⁄4 0:25 and hSn 1⁄4 0:33, respectively, as-prepa...

Controlling the spin of co atoms on pt(111) by hydrogen adsorption.

We investigate the effect of H adsorption on the magnetic properties of individual Co atoms on Pt(111) with scanning tunneling microscopy. For pristine Co atoms, we detect no inelastic features in the tunnel spectra. Conversely, CoH and CoH2 show a number of low-energy vibrational features in their differential conductance identified by isotope substitution. Only the fcc-adsorbed species presen...

Weakly-bound hydrogen on defected Pt(111)

Interaction of atomic hydrogen with monometallic Au(100), Cu(100), Pt(100) surfaces and surface of bimetallic Au@Cu(100), Au@Pt(100) overlayer systems: The role of magnetism

The spin-polarized calculations in generalized gradient approximation density–functional theory (GGA–DFT) have been used to show how the existence of second metals can modify the atomic hydrogen adsorption on Au (100), Cu (100), and Pt (100) surfaces. The computed adsorption energies for the atomic hydrogen adsorbed at the surface coverage of 0.125 ML (monolayer) for the monometallic Au (100), ...

Cyclic voltammograms for H on Pt(111) and Pt(100) from first principles.

Cyclic voltammetry is a fundamental experimental method for characterizing electrochemical surfaces. Despite its wide use, a way to quantitatively and directly relate cyclic voltammetry to ab initio calculations has been lacking. We derive the cyclic voltammogram for H on Pt(111) and Pt(100), based solely on density functional theory calculations and standard molecular tables. By relating the g...