Size control of titanium oxide sheets by regulating catalysis in a catalytic sol-gel process and their UV absorption properties

Article Abstract:

A new study switches off catalysts in a catalytic sol-gel process to control the size of sheetlike particles of titanium oxide.

Chemistry, Physical and theoretical, Physical chemistry

---

Characterization of the structure of RuO2-IrO2/Ti electrodes by EXAFS

Article Abstract:

An extended X-ray absorption fine structure measurement was used to examine the structure of the oxide layers of the RuO2-IrO2/Ti electrode system and the thermal decomposition processes of RuCl3 and IrCls to form their respective oxides. Results showed that the heating of both chlorides causes them to decompose into their respective oxides. The coordination number of the oxide ions around the ruthenium and iridium ions increase with the calcination temperature. Moreover, the binary oxide system of RuO2-IrO2 forms a solid solution.

Oxides, Electrodes, Titanium, Chlorides, Ruthenium, Iridium

---

Salt catalysts containing basic anions and acidic cations for the sol-gel process of titanium alkoxide: controlling the kinetics and dimensionality of the resultant titanium oxide

Article Abstract:

The use of ammonium carbonate catalyst containing basic anions and acidic cations significantly enhanced the sol-gel process from titanium alkoxide monomer to titanium oxide polymer. Deprotonation and dehydroxylation were involved in the dehydrative polycondensation of the sol-gel process. The former was enhanced by using the carbonate anion as a base catalyst while the latter was improved by using the ammonium cation as the acid catalyst. Monolithic titanium oxide gel, consisting of sheet-like titanium oxide particles, was produced when ammonium acetate was used as the catalyst.

Analysis, Usage, Catalysts, Condensation products (Chemistry)

Similar abstracts:

• Abstracts: Electron injection and recombination in dye sensitized nanocrystalline titanium dioxide films: a comparison of ruthenium bipyridyl and porphyrin sensitizer dyes
• Abstracts: Explanation for the disparity among absorption and action spectra of eumelanin. A model for the activated energy transfer within eumelanin aggregates
• Abstracts: Electrochemical studies of polynucleotide binding and oxidation by metal complexes: effects of scan rate, concentration, and sequence
• Abstracts: Single-step synthesis to control the photoluminescence quantum yield and size dispersion of CdSe nanocrystals
• Abstracts: Surface and textural properties of network-modified silica as a function of transition metal dopant zirconium

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.