Abstract
Infrared photoacoustic spectra were recorded over the 3900 to 1400 cm<sup>-1</sup> range with a single-beam, computer-controlled spectrometer fitted with a broad-band source and LiF and CaF<sub>2</sub> prisms. The exploratory results indicate that structured IR spectra of organic solids can be obtained. Various surface treatments were used to alter the chemical composition of the surfaces of samples composed of thick catalyst pellets and of thick beds of powdered silica and alumina, under controlled conditions in a reactor attached to the acoustic cell. The IR bands of resulting surface species were observable at sub-monolayer coverages. With some improvements, IR-photoacoustic spectroscopy will be a useful ancillary technique especially suited for studying surface species on thick adsorbents, catalysts, and corrosion layers.
PDF Article
More Like This
Cited By
You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Login to access Optica Member Subscription