ABSTRACT
We show here that the surface of MnO2 nanorods can be modified with aryl groups by grafting from aqueous and non-aqueous solutions of aryldiazonium salts. X-ray photoelectron spectroscopy provides direct evidence for covalent bonding of aryl groups to MnO2 through surface oxygens.
ABSTRACT
Ethylene carbonate (EC) and water solution compositions ranging from pure water to 60 mass% EC have been examined using infrared (attenuated total reflection) spectroscopy. The fundamental vibrational modes of EC in the mid-infrared between 2050 and 1000 cm(-1) were fitted to mixed Lorentzian-Gaussian bandshapes. The spectral data for EC bands between 1000 and 650 cm(-1) are also shown but were not curve-fitted due to baseline distortions from water librational modes. The results of the band analysis have provided information regarding the molecular structure of these solutions, and the fact that the structure is also concentration dependent. The Fermi resonance coupling between the v2 and 2v7 vibrations of EC have been analysed using a standard perturbation model.
