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Investigation of the aqueous electrochemistry of quadricyclane and vanadium pentoxide-based composite intercalation cathodes for lithium batteries

Posted on:2001-10-11Degree:Ph.DType:Dissertation
University:University of WyomingCandidate:White, Kevin CharlesFull Text:PDF
GTID:1462390014958454Subject:Chemistry
Abstract/Summary:
The aqueous redox chemistry of quadricyclo(2.2.1.0 2,6.03,5)heptane, commonly known as quadricyclane, and its environmentally important hydrolysis product, nortricyclanol, was investigated through the use of cyclic voltammetry, chronocoulometry and rotating disk electrochemical methods. Oxidation of both compounds in aqueous environments yields polymeric films that rapidly foul the working electrode. A novel experimental approach was developed to circumvent the problems associated with the formation of the fouling films which were further characterized using attenuated total reflectance infrared spectroscopy.; The intercalation chemistry of vanadium pentoxide (V2O 5) xerogel was studied through various methods including x-ray diffraction, ellipsometry, cyclic voltammetry and ultraviolet-visible spectroscopy. The intercalated materials included tris(2,2-bipyridyl)ruthenium(II) and poly{lcub}pyrrole-co-[3-(pyrrol-1-yl)propanesulphonate]{rcub}(SPP). Intercalated V2O5 species were examined for use as secondary lithium ion battery cathode materials. Testing of the SPP intercalated system gave favorable results suggesting possible application in rechargeable lithium batteries.
Keywords/Search Tags:Aqueous, Lithium
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