Results 241 to 250 of about 106,010 (295)

Oxidation on Metal Oxide Surfaces

1968
The redn. of transition metal oxides and of SnO2 + Sb2O3 by 1-butene and butadiene was investigated. A single parameter Qo, defined as the heat necessary to dissociate 0.5 O2 from the oxide, detd. the type of reaction. Starting from Q0 = 17 (MnO2) and proceeding to Q0 = 70 (SnO2), the redn. produces; CO2 -> (oxygenated products) -> butadiene ->
Simons, T.G.J., Verheijen, E.J.M., Batist, P.A., Schuit, G.C.A.   +3 more
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Oxidant signals and oxidative stress

Current Opinion in Cell Biology, 2003
Although oxidants clearly possess the capacity to behave in a random and destructive fashion, growing evidence suggests that in many instances the production of reactive oxygen species is tightly regulated and their downstream targets exquisitely specific.
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The decomposition of nitrous oxide on neodymium oxide, dysprosium oxide and erbium oxide

Journal of Catalysis, 1973
Abstract The decomposition of nitrous oxide on neodymium oxide, dysprosium oxide and erbium oxide has been studied in two pressure ranges of approximately 1 to 10 Torr and 10 to 100 Torr, over a temperature range of 400 to 600 °C. In all cases, the kinetics are first-order in nitrous oxide with a pseudo-rate constant varying with initial pressure ...
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Modelling oxide–oxide and oxide–metal interfaces

J. Chem. Soc., Faraday Trans., 1990
Recent years have seen a large increase in interest in interfaces of ionic and ceramic crystals and an appreciation of their importance in determining many of the properties of materials. Static-lattice calculations have made a major impact on the interpretation of the role of point defects in controlling observed behaviour in the bulk and are now ...
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Oxide-Oxide composites

2006
The need for high temperature, oxidation-resistant materials has driven research into oxide-oxide composites. These materials require a crack deflecting mechanism to prevent brittle failure; both interface coatings and porous matrices have proven successful in providing this function.
Kristin A. Keller, George Jefferson, Ronald J. Kerans   +2 more
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Polyneuropathy Due to Ethylene Oxide, Propylene Oxide, and Butylene Oxide

Environmental Research, 1993
Axonal neuropathy occurs due to occupational ethylene oxide (EtO) exposure. The experimental model of human EtO neuropathy was established. In addition, the neurotoxic effects of propylene oxide (PpO) and butylene oxide (BtO) were demonstrated in rats.
A, Ohnishi, Y, Murai
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Oxidation of a phosphinidene oxide: formation of a dioxaphosphirane oxide with oxygen scrambling

Chemical Communications, 2019
The oxidation of FPO with O 2 yields an exotic dioxaphosphirane oxide FP(O)(O 2 ) with 18 O-isotope scrambling via triplet FPO 3 by
Xianxu Chu, Chao Song, Yang Yang, Xiaoqing Zeng   +3 more
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Kinetics of the Oxidation of Triphenylphosphine by Nitric Oxide

Inorganic Chemistry, 2002
The oxidation of PPh3 by NO to N2O and Ph3PO in homogeneous solution occurs by third-order kinetics, d[Ph3P]/dt = k3[Ph3P][NO]2; analysis of solvent and substituent effects suggests formation of a phosphonium diazeniumdiolate intermediate prior to oxygen transfer from nitrogen to phosphorus.
Mark D, Lim, Ivan M, Lorkovic, Peter C, Ford   +2 more
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Oxidations: Partial Oxidations

ChemInform, 2006
AbstractFor Abstract see ChemInform Abstract in Full Text.
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Silicon Oxides and Oxidation

1993
Silicon dioxide has many desirable properties: an optical material of wide band gap known by many as the stable insulating oxide which helps silicon retain its supremacy in microelectronic devices. I shall discuss some of the recent studies increasing our understanding in three main areas: oxidation processes; interface issues; and processing and its ...
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