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Operando spectroscopy is widely applicable to heterogeneous catalysis, which is largely used in industrial chemistry. An example of operando methodology to monitor heterogeneous catalysis is the dehydrogenation of propane with molybdenum catalysts commonly used in industrial petroleum. [26]
Operando surface spectroscopy (XAS, NAP-XPS, FTIR, XRD) of CO oxidation and PROX on Co 3 O 4 catalysts, exploiting both static and dynamic conditions, revealed a complex reaction network. [ 10 ] [ 41 ] The presumably active (oxygen vacancy) sites were a minority species.
Extended X-ray absorption fine structure (EXAFS), along with X-ray absorption near edge structure , is a subset of X-ray absorption spectroscopy . Like other absorption spectroscopies , XAS techniques follow Beer's law .
Spectroscopy is the study of the interaction between radiation (electromagnetic radiation, or light, as well as particle radiation) and matter. Spectrometry is the measurement of these interactions; a machine which performs such measurements is a spectrometer or spectrograph.
An example of spectroscopy: a prism analyses white light by dispersing it into its component colors. Spectroscopy is the field of study that measures and interprets electromagnetic spectra. [1] [2] In narrower contexts, spectroscopy is the precise study of color as generalized from visible light to all bands of the electromagnetic spectrum.
The beamlines at NSLS-II are grouped into five science programs: hard X-ray scattering & spectroscopy, imaging and microscopy, structural biology, soft X-ray scattering and spectroscopy, and complex scattering. These programs group beamlines together that offer similar types of research techniques for studying the behavior and structure of matter.
Spectrochemistry is the application of spectroscopy in several fields of chemistry. It includes analysis of spectra in chemical terms, and use of spectra to derive the structure of chemical compounds, and also to qualitatively and quantitively analyze their presence in the sample.
Basic principle of multi-object spectroscopy. A multi-object spectrometer is a type of optical spectrometer capable of simultaneously acquiring the spectra of multiple separate objects in its field of view. [1] It is used in astronomical spectroscopy and is related to long-slit spectroscopy. [2] This technique became available in the 1980s. [3]