Application of electro-spray ionization mass spectrometry for characterization of titanium polyoxoalkoxides in sol-gel processes
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Sol-gel derived titanium dioxide nanoparticles with controlled size distribution and morphology are of great interest for different applications . Understanding the phenomena occurring during the initial stage of particle growth is especially important, because they determine the properties of the final products (powders, films, gels). The titania sol-gel polymerization follows essentially a different pathway than the relatively well studied silicon based sol-gel process . Generally, in the silicon case, individual monosilicate serves as building units during the process, while in the titania polymerization the role of building blocks can be played by polyoxoalcoxides (titanium oxide clusters) [2, 3, 4]. Particularly Ti11O13(OC3H7)18 was proposed as such a building block in the case of titanium isopropoxide (TTIP) based sol-gel process . A stable solution of these clusters can be obtained by hydrolysis of TTIP under low hydrolysis ratios H < 1 (His the molar ratio of water...
KeywordsInduction Period Titanium Atom Monosilicate Hydrolysis Ratio Fine Structure Line
The authors acknowledge Henrik Sillen and Gorm Karstens (Agilent Technologies A/S) for their kind help with ESI-MS experiments.
- 2.Brinker CJ, Scherer GW (1990) Sol-gel science, the physics and chemistry of sol-gel processing. Academic Press, San DiegoGoogle Scholar
- 4.Blanchard J (1997) PhD Thesis, Université Pierre et Marie Curie, June 1997Google Scholar
- 7.In: Cole RB (ed) Electrospray ionization mass spectrometry: fundamentals, instrumentation, and applications. John Wiley and Sons, 1997Google Scholar
- 9.Søgaard EG (2002) In: Hahn HH, Hoffmann E, Ødegaard H (eds) Chemical water and wastewater treatment VII: proceedings of the 10th Gothenburg Symposium. June 17–19, 2002, Gothenburg, Sweden, p 3Google Scholar
- 10.http://www.shef.ac.uk/chemistry/chemputer/isotopes.htmlGoogle Scholar