CO-induced segregation of hydrogen into the subsurface of Ni(110)

Article Abstract:

The scanning tunneling microscopy (STM) and temperature-programmed desorption (TPD) are combined to show changes to the Ni(110) surface structure upon formation of the (beta3) state of hydrogen which is mediated by CO. The results indicate that CO induces the segregation of a fraction of the hydrogen from the Ni-H overlayer into the subsurface and the remainder evolves into the gas phase.

Nitrogen, Chemistry, Physical and theoretical, Physical chemistry, Surface chemistry, Structure

---

H2 production in the radiolysis of water on UO2 and other oxides

Article Abstract:

The production of H2 in the gamma ray and 5 MeV helium ion radiolysis of water adsorbed on 0.4 and 1 (mu)m particles of UO2 are studied. It is observed that the radiation chemical yields of H2 increase substantially with decreasing number of adsorbed water layers when the yield is determined with respect to the energy deposited directly by gamma rays in the water.

Uranium Oxide, Uranium-Radium-Vanadium Ore Mining, Water, Gamma rays, Radiolysis, Uranium dioxide

---

Raman investigation of surface OH-species in porous silica

Article Abstract:

A comparison of the surface vibrational properties of sol-gel synthesized porous silica monoliths with different porosity is analyzed. Raman spectroscopy studies of the fundamental O-H stretching range (3000-3800 cm to the power -1) shows a dependence of the surface reactivity on pore dimensions.

All Other Basic Inorganic Chemical Manufacturing, Oxygen, Silica Gel, Porous materials, Raman spectroscopy, Properties

Similar abstracts:

• Abstracts: Photoinduced-reaction dynamics of halogenated alkanes on iron oxide surfaces: CH3I on Fe3O4(111)-(2*2). Selective one-step synthesis of dimethoxymethane via methanol or dimethyl ether oxidation on H(sub 3+n)VnMo(sub 12-n)PO40 Keggin structures
• Abstracts: Characterization of methyl viologen in the channels of zeolite L. Orientation of fluorescent dyes in the nano channels of zeolite L
• Abstracts: Photoinduced charge separation of N-alkylphenothiazines in X zeolites. Effect of charge stabilization on electron transfer reactions in zeolites
• Abstracts: Water-gas-shift reaction on molybdenum carbide surfaces: Essential role of the oxycarbide. A novel growth mode of Mo on Au (111) from a Mo(CO)(sub 6) precursor: an STM study
• Abstracts: Simulated reversible aggregation processes for different interparticle potentials: the cluster aging phenomenon

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