A study of the structure of vanadium oxide dispersed on zirconia
Article Abstract:
The molecular structure of vanadium oxide dispersed on the high surface area of amorphous and crystalline zirconia was described using Raman and ultraviolet -vis diffuse reflectance spectroscopy. The experiments investigated the surface structures of vanadia and the effect of loading on the structure of dispersed vanadia. The findings demonstrate two-dimensional patches of vanadia that grow in response to loading. A relative zirconia scattering is observed during reduction. This was attributed to changes in the optical properties of the vanadia monolayer.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 1998
User Contributions:
Comment about this article or add new information about this topic:
Reactivity of lattice oxygens present in V2O5(010): a periodic first-principles investigation
Article Abstract:
A study was conducted to analyze hydrogen adsorption on the V2O5(010) surface using density functional computations. Results indicated that the use of a periodic approach eliminates artifacts of the cluster technique. In addition, findings confirmed the effectiveness of using the density functional theory in examining the geometric, electronic and catalytic characteristics of transition metal oxide catalysts.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 1999
User Contributions:
Comment about this article or add new information about this topic:
Effects of precursor composition on the local structure of Cu dispersed on mesoporous silica: A detailed X-ray absorption spectroscopy study
Article Abstract:
A low-temperature grafting approach using two Cu(super I) molecular precursors ([CuOSi(O(super t)Bu)3](sub 4) and [CuO(super t)Bu](sub 4) and a high-temperature exchange reaction using CuCl were utilized with a mesoporous silica support (SBA-15). This was done to investigate the effects of catalyst preparation on the nature of copper-support interactions and site speciation.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2004
User Contributions:
Comment about this article or add new information about this topic:
- Abstracts: The crystalline structures of carboxylic acid monolayers adsorbed on graphite
- Abstracts: Ad initio study of the stabilization of multiply charged anions in water. A simple method for incorporating Madelung field effects into ab initio embedded cluster calculations of crystals and macromolecules
- Abstracts: Molecular structure and adsorption of dimethyl sulfoxide at the surface of aqueous solutions. Probing the structure of water molecules at an oil/water interface in the presence of a charged soluble surfactant through isotopic dilution studies
- Abstracts: Formation and transition of highly ordered structures of polyelectrolyte-surfactant complexes. Supramolecular structures of polyethylenimine-sodium alkyl sulfate complexes
- Abstracts: Silver chloride clusters and surface states. Surface-enhanced Raman scattering study of quinoxaline-2,3-dithiol and disodium bis(quinoxaline-2,3-dithiolato)nickelate(II) adsorbed on silver surface