Results 271 to 280 of about 235,631 (302)
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Journal of Catalysis, 1982
Abstract The kinetics of the hydrogen-oxygen reaction have been characterized on a Pt(111) surface over the 300–450 K temperature range by titration of adsorbed atomic oxygen with hydrogen in the 1.3 × 10 −6 to 1.3 × 10 −7 Pa (10 −8 to 10 −9 Torr) pressure range.
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Abstract The kinetics of the hydrogen-oxygen reaction have been characterized on a Pt(111) surface over the 300–450 K temperature range by titration of adsorbed atomic oxygen with hydrogen in the 1.3 × 10 −6 to 1.3 × 10 −7 Pa (10 −8 to 10 −9 Torr) pressure range.
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The nature of adsorbed oxygen on rhodium, palladium and gold electrodes
Journal of Electroanalytical Chemistry and Interfacial Electrochemistry, 1971Summary Oxygen coverage has been determined on rhodium, palladium and gold anodes as a function of potential and time. The oxygen-containing film consists of chemisorbed oxygen atoms, but phase oxide can nucleate and grow under severe conditions of anodization.
D.A.J. Rand, R. Woods
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The reaction of H2S with adsorbed oxygen atoms on platinum (111)
Surface Science, 1988Abstract The reaction of H 2 S(g) and adsorbed atomic oxygen on Pt(111) has been studied by SIMS, HREELS, and TPD. H 2 S(g) reacts completely at 96 K with 0.22 ML O(a) to give H 2 O(a) and S(a). The reaction rate shows no measureable temperature dependence between 96 and 135 K and, under the conditions of this study, was equal to the flux of H 2 S ...
G.E. Mitchell, M.A. Schulz, J.M. White
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The reactivity and auger chemical shift of oxygen adsorbed on platinum
Surface Science, 1977The reaction of carbon monoxide with oxygen chemisorbcd on polycrystalline platinum has been studied using Auger spectroscopy. Two types of chemisorbed oxygen are distinguished on the basis of Auger electron chemical shifts and reactivity towards carbon monoxide.
T. Matsushima, D.B. Almy, J.M. White
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The effect of adsorbed oxygen on the surface energy of B.C.C. iron
Acta Metallurgica, 1968Abstract The surface energy of pure δ phase iron was measured at 1410°C as a function of the oxygen content of the ambient atmosphere, by a zero-creep technique. The surface energy was found to be very sensitive to adsorbed oxygen, and it falls 100 ergs cm −2 for every ten-fold increase in oxygen pressure at 1410°C.
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The phase transition in a molecular oxygen layer adsorbed on graphite
Solid State Communications, 1988Abstract Landau's theory has been applied to the calculation of the symmetry change at the phase transition in O2 layer on graphite which supplements the earlier investigation of Domany and Riedel [4] in which the phase diagram for that transition has been determined.
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Reactive oxygen species signalling in plant stress responses
Nature Reviews Molecular Cell Biology, 2022Ron Mittler +2 more
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Reactive oxygen species (ROS) as pleiotropic physiological signalling agents
Nature Reviews Molecular Cell Biology, 2020Helmut Sies, Dean P Jones
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Defining roles of specific reactive oxygen species (ROS) in cell biology and physiology
Nature Reviews Molecular Cell Biology, 2022Helmut Sies +2 more
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