The Mechanism of Ethylene Oxide Formation from 2-Chloroethanol1,2

1959 ◽  
Vol 81 (10) ◽  
pp. 2353-2359 ◽  
Author(s):  
C. Gardner Swain ◽  
Arthur D. Ketley ◽  
Richard F. W. Bader
Keyword(s):  
Ethylene Oxide ◽  
Oxide Formation

Microreactors as tools in kinetic investigations: Ethylene oxide formation on silver catalyst

2013 ◽  
Vol 87 ◽  
pp. 306-314 ◽  
Author(s):  
Tapio Salmi ◽  
José Hernández Carucci ◽  
Mauricio Roche ◽  
Kari Eränen ◽  
Johan Wärnå ◽  
...  
Keyword(s):  
Ethylene Oxide ◽  
Silver Catalyst ◽  
Oxide Formation ◽  
Kinetic Investigations

Detection and quantification of steady-state ethylene oxide formation over an Ag(111) single crystal

2013 ◽  
Vol 299 ◽  
pp. 129-136 ◽  
Author(s):  
S. Böcklein ◽  
S. Günther ◽  
R. Reichelt ◽  
R. Wyrwich ◽  
M. Joas ◽  
...  
Keyword(s):  
Steady State ◽  
Ethylene Oxide ◽  
Single Crystal ◽  
Oxide Formation ◽  
Detection And Quantification

Ethylene Oxide Formation in a Microreactor: From Qualitative Kinetics to Detailed Modeling

2010 ◽  
Vol 49 (21) ◽  
pp. 10897-10907 ◽  
Author(s):  
José R. Hernández Carucci ◽  
Ville Halonen ◽  
Kari Eränen ◽  
Johan Wärnå ◽  
Satu Ojala ◽  
...  
Keyword(s):  
Ethylene Oxide ◽  
Oxide Formation

The Structure of Radiation Cross-Linked Poly (ethylene oxide) Gels

1971 ◽  
Vol 29 ◽  
pp. 76-77
Author(s):  
C. E. Cluthe ◽  
G. G. Cocks
Keyword(s):  
Molecular Weight ◽  
Ethylene Oxide ◽  
Parallel Plate ◽  
Average Molecular Weight ◽  
Radical Reaction ◽  
Free Radical Reaction ◽  
Nitrogen Gas ◽  
Poly Ethylene Oxide ◽  
Poly Ethylene ◽  
Initial Viscosity

Aqueous solutions of a 1 weight-per cent poly (ethylene oxide) (PEO) were degassed under vacuum, transferred to a parallel plate viscometer under a nitrogen gas blanket, and exposed to Co60 gamma radiation. The Co60 source was rated at 4000 curies, and the dose ratewas 3.8x105 rads/hr. The poly (ethylene oxide) employed in the irradiations had an initial viscosity average molecular weight of 2.1 x 106.The solutions were gelled by a free radical reaction with dosages ranging from 5x104 rads to 4.8x106 rads.

STEM and ELS Observation of Early Oxide Formation on the Surface of Cr Thin Films

1980 ◽  
Vol 38 ◽  
pp. 412-413
Author(s):  
Fumio Watari ◽  
J. M. Cowley
Keyword(s):  
Thin Films ◽  
Optical System ◽  
Room Temperature ◽  
Oxide Formation ◽  
Initial Nucleation ◽  
Diffraction Patterns ◽  
Relationship Of ◽  
Multiple Twinning ◽  
Moderately High Temperature

STEM coupled with the optical system was used for the investigation of the early oxidation on the surface of Cr. Cr thin films (30 – 1000Å) were prepared by evaporation onto the polished or air-cleaved NaCl substrates at room temperature and 45°C in a vacuum of 10−6 Torr with an evaporation speed 0.3Å/sec. Rather thick specimens (200 – 1000Å) with various preferred orientations were used for the investigation of the oxidation at moderately high temperature (600 − 1100°C). Selected area diffraction patterns in these specimens are usually very much complicated by the existence of the different kinds of oxides and their multiple twinning. The determination of the epitaxial orientation relationship of the oxides formed on the Cr surface was made possible by intensive use of the optical system and microdiffraction techniques. Prior to the formation of the known rhombohedral Cr2O3, a thin spinel oxide, probably analogous to γ -Al203 or γ -Fe203, was formed. Fig. 1a shows the distinct epitaxial growth of the spinel (001) as well as the rhombohedral (125) on the well-oriented Cr(001) surface. In the case of the Cr specimen with the (001) preferred orientation (Fig. 1b), the rings explainable by spinel structure appeared as well as the well defined epitaxial spots of the spinel (001). The microdif fraction from 20A areas (Fig. 2a) clearly shows the same pattern as Fig. Ia with the weaker oxide spots among the more intense Cr spots, indicating that the thickness of the oxide is much less than that of Cr. The rhombohedral Cr2O3 was nucleated preferably at the Cr(011) sites provided by the polycrystalline nature of the present specimens with the relation Cr2O3 (001)//Cr(011), and by further oxidation it grew into full coverage of the rest of the Cr surface with the orientation determined by the initial nucleation.

Routes of metal oxide formation from metal β-diketonates used as CVD precursors

1999 ◽  
Vol 09 (PR8) ◽  
pp. Pr8-65-Pr8-72 ◽  
Author(s):  
A. E. Turgambaeva ◽  
V. V. Krisyuk ◽  
A. F. Bykov ◽  
I. K. Igumenov
Keyword(s):  
Metal Oxide ◽  
Oxide Formation
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