Infrared spectroscopy as a tool to analyze individual and composite materialsPublished by Astacus on Пт, 01/06/2017 - 15:56
Practically all organic and inorganic compounds have characteristic bands in infrared (IR) spectra, e.g. silica has a narrow band of free silanols.
The IR spectroscopy can be used as a tool to obtain a “fingerprint” of any compound. Mid-wavelength IR spectra (300-4000 cm-1) of individual matters (powders, tablets, films) or mixtures, e.g. with KBr or oil, could be analyzed in respect to selected bands. This gives information on composition and structure of samples. Additionally, for silica based composites, the specific surface area and surface content of a silica phase could be estimated. The IR spectra give information on intermolecular interactions that is of importance for complex materials, especially nanostructured.
IR spectroscopy investigations of compounds:
- adsorption layers with low- and high-molecular weight compounds on a surface of solids;
- analysis of experimental data
- using a set of computer programs.
Provider: Chuiko Institute of Surface Chemistry (CISC) of National Academy of Sciences of Ukraine