Nickel Carbonyl Reaction Kinetics in a Magnetic Field
Author : David J. Moll
Publisher :
Page : 52 pages
File Size : 15,16 MB
Release : 1976
Category : Oscillating chemical reactions
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Author : David J. Moll
Publisher :
Page : 52 pages
File Size : 15,16 MB
Release : 1976
Category : Oscillating chemical reactions
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Author : M. S. Dresselhaus
Publisher :
Page : 7 pages
File Size : 10,14 MB
Release : 1981
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Our studies of the magnetic phase dependence of chemical reactions includes both an experimental and a theoretical program. We describe below progress made during the funding period of the grant in both the experimental and theoretical programs. The experimental program focused firstly on repeating previously reported observations of a strong, oscillatory magnetic field dependence of a chemical reaction, the carbonylation of Ni to form nickel carbonyl. Using a more sensitive experimental system than that of the previous workers, we were not able to repeat their reported results. The second experimental program focused on the observation of a change in reaction rate and activation energy of the chemical reaction due to a magnetic phase transition of the reacting substrate. This phenomenon was conveniently studied using nickel copper alloys to vary the Curie temperature. Cluster calculations for the energy levels showed that the addition of a single carbon monoxide group fills the d shell and leads to a diamagnetic complex. The third experimental program addressed the observation of the Hedvall effect in a reaction where the magnetic species was purely catalytic, namely the hydrogenation of ethylene on nickel copper surfaces. The theoretical modeling was carried out with a spin polarized calculation of the energy levels of an ethylene molecule bound to a nickel cluster.
Author : M. S. Dresselhaus
Publisher :
Page : 29 pages
File Size : 30,96 MB
Release : 1978
Category :
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Initial work on the dependence of the nickel carbonylation rate on time, temperature and magnetic field has been completed and a manuscript describing this work in detail has been accepted for publication. Our current effort is in the study of the magnetic phase dependence of chemical activity (the Hedvall Effect). The nickel carbonylation reaction offers an ideal system for the study of this effect. One of the advantages of this system is the availability of Ni(1-x) Cu(x) alloys over the entire composition range 0
Author : Paul George Reis
Publisher :
Page : 312 pages
File Size : 17,3 MB
Release : 1954
Category :
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Author : David Albert Nelson
Publisher :
Page : 572 pages
File Size : 35,82 MB
Release : 1952
Category :
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Author :
Publisher :
Page : 840 pages
File Size : 18,10 MB
Release : 1990
Category : Power resources
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Author : Argonne National Laboratory. Materials Science Division
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Page : 118 pages
File Size : 16,40 MB
Release : 1977
Category : Condensed matter
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Author :
Publisher :
Page : 638 pages
File Size : 32,80 MB
Release : 1982
Category : Aeronautics
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Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Author : United States. National Bureau of Standards
Publisher :
Page : 788 pages
File Size : 28,23 MB
Release : 1969
Category : Government publications
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Author :
Publisher :
Page : 472 pages
File Size : 46,52 MB
Release : 1974
Category : Physics
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