Multiple dehydrogenation reactions of negative ions in low pressure silane plasma chemistry
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Objective: Develop an algorithm to decompose streamflow electrical conductivity signal into its “harmonics”, i.e. into the specific contribution of different ion species. Level: BS, Masters Description: The electrical conductivity (EC) of ...
Previous measurements of SixHm- anions and electrons in the afterglow of silane discharges are analyzed here. A model of plasma anion chemistry includes two sources of anions, two possible causes of x-->x+1 anion growth, and anion loss by mutual neutraliza ...
We propose a new mechanism for the electroreduction of hydrogen in acidic media. The specific model and theoretical calculations are designed for the Pt(111) surface, because this is the only face that exhibits a clear first order phase transition. The bas ...
Bromide promoted decompn. of tert-Bu bromide in the presence of triphenylphosphine gives, besides isobutene, hydrogen(triphenyl)phosphonium bromide. When heated to approx. 150 DegC in the presence of xylene, the latter salt liberates hydrogen bromide which ...
Hydrogenated amorphous silicon (a-Si:H) films have been thermally annealed at temperatures in the range 220-270 °C for 24-48 h either under intense visible light illumination (4-16 W/cm2) or in the dark. After each annealing, the hydrogen-concentration pro ...
Ion-bombarded polystyrene with a 0.5-keV Ar+ beam has been investigated by means of photoelectron spectroscopy performed with synchrotron radiation. After a dose of 10(15) ions/cm2 the evolution of the valence band of the bombarded sample towards an amorph ...
