Experimental and theoretical investigation of the stability of Pt-3d-Pt(111) bimetallic surface under oxygen environment

Article Abstract:

The stability of the Pt-3d-Pt(111) (3d = Ti, V, Cr, Mn, Fe, Co, or Ni) bimetallic surface structures in the presence of adsorbed oxygen is investigated by means of density functional theory, and the binding energies of oxygen on Pt-3d-Pt(111) and 3d-Pt-Pt(111) are calculated. All the Pt-3d-Pt(111) surfaces are found to have weaker oxygen binding energies than pure Pt(111) whereas all of the 3d-Pt-Pt(111) surfaces are found to have stronger oxygen binding energies than pure Pt(111).

Usage, Density functionals, Density functional theory, Platinum compounds, Binding energy, Structure, Chemical properties

---

Spectroscopic characterization of acidity in chabazite

Article Abstract:

The role of potassium cation content and catalyst activation temperature on zeolite stability and overall catalyst performance is studied. It is shown that improved catalytic activity and selectivity toward reduced trimethylamine yield is the result of optimizing potassium cation content and activation temperature.

Potassium channels, Chemistry, Physical and theoretical, Physical chemistry, Properties

---

Potential application of tungsten carbides as electrocatalysts: reactions of methanol, water and carbon monoxide over carbide-modified W(110)

Article Abstract:

The feasibility of tungsten carbides as fuel cell electrocatalysts are evaluated. The main focus is laid on the fundamental surface science studies of the anodic chemistry of the direct methanol fuel cell.

Thermal properties, Tungsten carbide

Similar abstracts:

• Abstracts: Experimental and theoretical probes of the structure of oxametallaycle intermediates derived from 1-epoxy-3-buteneon Ag(110)
• Abstracts: Experimental and theoretical studies of the electronic spectra of mixed framework phosphates of Zr and Co. Role of Co-W interaction in the selective growth of single walled carbon nanotubes form CO disproportionation
• Abstracts: Density functional theoretical investigations on various nanostructural zeolite surfaces. [H.sub.2] adsorption on Fe/ZSM-5 zeolite: A theoretical approach
• Abstracts: Adsorption and desorption of methanol on Pd(111) and a Pd/V surface alloy. A DFT study of methanol adsorption in 8T rings of chabazite
• Abstracts: A theoretical investigation on the dual-mode photoswitching mechanism of some chiroptical systems. Distribution of hydrophobic ions and their counterions at an aqueous-liquid-liquid interface. A molecular dynamics investigation

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.