Infrared spectroscopic study of hydroxyl groups on silica surfaces

Journal Article · Thu Oct 14 00:00:00 EDT 1982 · J. Phys. Chem.; (United States)

DOI:https://doi.org/10.1021/j100218a005· OSTI ID:6537992

Tsuchiya, I

Ir spectra of Aerosil silica were measured for samples which were subjected to bakeout, deuterium exchange, and diethyl ether adsorption. The absorbance difference spectrum between the infrared spectra obtained at different conditions showed several peaks and shoulders for each experiment. In consideration of a model of surface hydroxyls, it is concluded that ir absorption of the silica degassed under vacuum below 500/sup 0/C contains a number of contiguous bands and that most of these bands are attributed to various types of hydroxyl species in the model. In an attempt of decomposition of the difference spectra by a curve resolver, these were respectively resolved into several components, which could be related to each other among the three experiments. 8 figures, 1 table.

• Research Organization: Electrotechnical Lab., Ibaraki, Japan
• OSTI ID: 6537992
• Journal Information: J. Phys. Chem.; (United States), Journal Name: J. Phys. Chem.; (United States) Vol. 86:21; ISSN JPCHA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400203* -- Isotope Exchange & Isotope Separation-- (-1987)
400600 -- Radiation Chemistry
ADSORPTION
CHALCOGENIDES
DATA
DEUTERIUM
ETHERS
ETHYL ETHER
EXPERIMENTAL DATA
HEATING
HEAVY WATER
HIGH TEMPERATURE
HYDROGEN COMPOUNDS
HYDROGEN ISOTOPES
HYDROXIDES
HYDROXYL RADICALS
INFORMATION
INFRARED SPECTRA
ISOTOPES
ISOTOPIC EXCHANGE
LABELLING
LIGHT NUCLEI
MINERALS
NUCLEI
NUMERICAL DATA
ODD-ODD NUCLEI
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
RADICALS
SILICA
SILICON COMPOUNDS
SILICON OXIDES
SORPTION
SORPTIVE PROPERTIES
SPECTRA
STABLE ISOTOPES
SURFACE PROPERTIES
TEMPERATURE DEPENDENCE
WATER