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Nickel Oxide Reduction and the Effect of Metal Sulfates

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dc.contributor.advisor Rowntree, Paul Foran, Gabrielle 2014-08-29T12:56:09Z 2014-08-29T12:56:09Z 2014-08 2014-08-26 2014-08-29
dc.description.abstract Nickel oxide samples were reduced at temperatures of 350 to 450 C in the presence of metal sulfate additives. Kinetic parameters were measured and used to infer rate of reduction, activation energy and reduction mechanism. The ensemble of these parameters was used to quantify the effect of sample composition and metal sulfate addition on the nickel oxide sample’s reducibility. Reduction mechanisms were determined through the use of linear and residual statistics. The reduced samples were characterized by Raman spectroscopy and SEM/EDX, nickel sulfide species were present on the samples that were pretreated with NiSO4. The sulfide species were further characterized using XPS; it was determined that both Millerite and Heazelwoodite were present. XRD was used to probe the lattice structure to determine the fraction of crystalline metallic nickel. It was found that these samples were 30-40 % amorphous. en_US
dc.description.sponsorship NSERC, Vale en_US
dc.language.iso en en_US
dc.subject Nickel en_US
dc.subject Nickel Oxide en_US
dc.subject Reduction en_US
dc.subject Metal Sulfates en_US
dc.subject Reduction Kinetics en_US
dc.title Nickel Oxide Reduction and the Effect of Metal Sulfates en_US
dc.type Thesis en_US Chemistry en_US Master of Science en_US Department of Chemistry en_US
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