Electrochemical characterization of thio sol-gel derived titanium sulfide (TiS{sub 2}) powders with unique morphologies
- Carnegie Mellon Univ., Pittsburgh, PA (United States)
A novel thio sol-gel process utilizing titanium alkoxide as the metal source has been used to synthesize TiS{sub 2} powders exhibiting uniquely different morphologies. The pure alkoxide and its partially modified form using benzene sulfonic acid (BSA) have been reacted with H{sub 2}S to yield a solid precursor. Upon heat treatment in flowing H{sub 2}S the precursors were converted to TiS{sub 2} exhibiting distinctly different morphologies. These powders have been characterized for their chemical stoichiometry (using X-ray diffraction). At the same time the sulfide was also prepared using conventional techniques involving the reaction of the individual elements in a sealed evacuated quartz ampoule at elevated temperatures of 500{degrees}C. The morphologies of both, the thio sol-gel derived and conventionally synthesized powders have been compared using scanning electron microscopy (SEM). Preliminary electrochemical tests were also performed by fabricating test cathodes of these materials and using them in {open_quotes}hockey puck{close_quotes} cells incorporating lithium as both the anode and the reference electrodes. These studies were conducted to analyze the effect of the different morphologies of the synthesized powders on their electrochemical performance.
- OSTI ID:
- 472038
- Report Number(s):
- CONF-950401--; CNN: Grant DMR-9301014; Grant CTS - 93090730; Contract N00014-94-1-0773
- Country of Publication:
- United States
- Language:
- English
Similar Records
Superconducting film fabrication by the sol-gel process
Chemical routes to synthesize lithium cobalt oxide powders for rechargeable lithium batteries