Characterization of Zr-doped TiO2 nanocrystals prepared by a nonhydrolytic sol-gel method at high temperatures
Article Abstract:
Successful preparation of highly crystalline and surface-modified Zr-doped TiO2 nanorods is conducted using a nonhydrolytic sol-gel method that involves the condensation of metal halides with alkoxides in anhydrous trioctylphoshine oxide (TOPO) at either 320 or 400 degree Celsius. The results reveal that the faster kinetics for the generation of TiO2 controls the material properties as well as the photoactivities of the nonhydrolytic sol-gel derived nanocrystals.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2006
User Contributions:
Comment about this article or add new information about this topic:
Aqueous zirconium complexes for gelling polymers. A combined X -ray absorption spectroscopy and quantum mechanical study
Article Abstract:
The speciation of zirconium, both in aqueous solutions and in polymer gels is determined by combining X-ray absorption spectroscopy (XAS) and quantum mechanical calculations using density functional theory. The X-ray absorption near edge structure results show that Zr is mainly surrounded by eight oxygens in the first coordination sphere, forming a dodecahedron.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2003
User Contributions:
Comment about this article or add new information about this topic:
New methodological approach for the vanadium K-edge X-ray absorption near-edge structure interpretation: Application to the speciation of vanadium in oxide phases from steel slag
Article Abstract:
A comparison between several methods dedicated to the interpretation of V K-edge ZX-ray absorption near-edge structure (XANES) features is presented. The micro- XANES measurements have described the microdistribution of vanadium speciation in leached steel slag, where vanadium has displayed an important evolution from the unaltered to the altered phases.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2007
User Contributions:
Comment about this article or add new information about this topic:
- Abstracts: Characterization of iron promoter in tungstated zirconia catalysts by Mossbauer spectroscopy at very low temperatures
- Abstracts: Structural characterization of self-organized TiO(sub 2) nanoclusters studied by small angle neutron scattering
- Abstracts: Spectroscopic characterization of gold nanoparticles passivated by mercaptopyridine and mercaptopyrimidine derivatives
- Abstracts: Spectroscopic characterization of gold nanoparticles passivated by mercaptopyridine and mercaptopyrimidine derivatives. part 2
- Abstracts: Photoluminescence of ZnO nanoparticles prepared by laser ablation in different surfactant solutions. Synthesis of ultrafine SnO(sub 2-x) nanocrystals by pulsed laser-induced reactive quenching in liquid medium