Results 261 to 270 of about 235,631 (302)
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The Electronic Structure of Adsorbed Oxygen on Ag(110)
1988We report on a study of oxygen adsorption on Ag(110) at temperatures between 300 and 550 K and partial pressures of 100 mbar. For high temperature adsorption a new c(2x2) adsorption phase is formed with distinct bonding and anti-bonding peaks visible in the photoelectron spectra.
W. Segeth +2 more
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Electrocatalytic four-electron reduction of oxygen at the cytochrome c3-adsorbed electrode
Biochimica et Biophysica Acta (BBA) - Bioenergetics, 1981The electrocatalytic activity of cytochrome c3 for the reduction of molecular oxygen was characterized from the studies of the adsorption of cytochrome c3 and the co-adsorption of cytochrome cs with cytochrome c on the mercury electrode by the a.c. polarographic technique.
K, Niki +5 more
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The effect of adsorbed oxygen on the surface potential of n-GaAs(110)
The Journal of Chemical Physics, 2005Potential variations on semiconductor surfaces are often mapped using a combination of constant current topographic and local surface photovoltage (SPV) imaging. SPV imaging provides a direct measurement of surface-potential variations at large lateral distances from a charged defect or adsorbate.
Iftach, Nevo +3 more
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Symposium (International) on Combustion, 1989
We have previously reported work examining the oxidation of soot by oxygen atoms at 298 K. We found that this oxidation produced CO 2 and CO gasification products, but that the chemistry was dominated by large net oxygen atom adsorption on the soot. In the present work we have used O 16 and O 18 in various sequential oxygen atom exposure experiments
Brian G. Wicke, Karen A. Grady
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We have previously reported work examining the oxidation of soot by oxygen atoms at 298 K. We found that this oxidation produced CO 2 and CO gasification products, but that the chemistry was dominated by large net oxygen atom adsorption on the soot. In the present work we have used O 16 and O 18 in various sequential oxygen atom exposure experiments
Brian G. Wicke, Karen A. Grady
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The effect of adsorbed oxygen on the conductivity of lead phthalocyanine films
Technical Physics Letters, 2003The effect of adsorbed oxygen on the conductivity of lead phthalocyanine films obtained by laser deposition in vacuum was studied by the method of cyclic thermodesorption. The results are explained in terms of the hopping conductivity model. It is suggested that the electron transport proceeds by hopping via both intrinsic and impurity centers ...
A. E. Pochtenny, A. V. Misevich
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Surface Science, 1990
The hydrogen-oxygen reaction on the Pt(111) surface was investigated with a slowly modulated (v ⩽ 0.5 Hz) molecular beam: oxygen atoms, adsorbed on the surface from the ambient gas, are periodically titrated by a pure D2 or a mixed H2D2 beam. The reaction is characterized by monitoring the desorption of D2O and HD.
Laurens K. Verheij +3 more
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The hydrogen-oxygen reaction on the Pt(111) surface was investigated with a slowly modulated (v ⩽ 0.5 Hz) molecular beam: oxygen atoms, adsorbed on the surface from the ambient gas, are periodically titrated by a pure D2 or a mixed H2D2 beam. The reaction is characterized by monitoring the desorption of D2O and HD.
Laurens K. Verheij +3 more
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The effect of adsorbed oxygen on the surface photo voltage of CdSe
Surface Science, 1970Abstract The surface photovoltage of single crystal, 1 ohm-cm CdSe was measured as a function of the adsorption of oxygen. Data are given for the dependence of the signal on bakeout temperature and the pressure of the oxygen ambient. In parallel experiments, photosorption was used to establish the conditions required for a defined change in surface ...
M.J. Katz, K.J. Haas
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The effects of adsorbed oxygen on measurements with ionization gauges
Vacuum, 1963Abstract Thr formation of O + ions by electron bombardment of adsorbed layers of oxygen on molybdenum has been observed with (a) a mass spectrometer, and (b) an electrostatic retarding-field analyser. O + ions are formed with a mean initial kinetic energy of about 6 eV. The ionization efficiency has a maximum of about 10 −5 ions/electron for 90 eV
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Influence of Adsorbed Water on the Oxygen Evolution Reaction on Oxides
The Journal of Physical Chemistry C, 2014We study the interface between adsorbed water and stoichiometric, defect-free (110) rutile oxide surfaces of TiO2, RuO2, and IrO2 in order to understand how water influences the stabilities of the intermediates of the oxygen evolution reaction (OER).
S. Siahrostami, A. Vojvodic
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Morphological changes of Rh crystallites in the presence of adsorbed oxygen
Surface Science, 1998We studied the oxygen-induced reconstruction of Rh tips by means of field ion microscopy. The overall 3D morphology of the clean tip was transformed from nearly hemispherical to polyhedral in the presence of adsorbed oxygen at temperatures between 500 and 550 K.
Voss, Christian, Kruse, Norbert
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