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An Investigation of the Use of Hybrid Suspension-Solution Feedstock to Fabricate Direct-Oxidation Nickel-Based Anodes (Barium Oxide-Nickel-YSZ, Cerium Dioxide-Nickel-YSZ and Tin-Nickel-YSZ) by Plasma Spraying

Posted on:2013-02-11Degree:M.A.ScType:Thesis
University:University of Toronto (Canada)Candidate:Kirton, KerryFull Text:PDF
GTID:2451390008474403Subject:Engineering
Abstract/Summary:
The reduction of manufacturing costs and the facilitation of direct-oxidation of hydrocarbon fuels have been identified as means of promoting the commercialization of the solid oxide fuel cell, a technology that offers both environmental and fuel conservation benefits compared to conventional energy conversion technologies. This research was conducted with the aim of realizing the production of direct-oxidation anodes using atmospheric plasma spraying, which has been identified as a fabrication technique that has the potential to reduce the manufacturing costs of solid oxide fuel cells. This thesis details the rationale behind the selection of the anode compositions (BaO-Ni-YSZ, CeO2-Ni-YSZ, and Sn-Ni-YSZ) and the specifics of the specialized fabrication strategy (SPS-SPPS) that was devised with the aim of realizing microstructures similar to those where the secondary phases (BaO, CeO2, and Sn) coat the surfaces of the primary Ni and YSZ phases. Results of XRD, SEM and EDS analyses are presented.
Keywords/Search Tags:Direct-oxidation
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