The phrase "analyses of the catalyst" is correct and usable in written English.
It can be used in scientific or technical contexts when discussing the examination or study of a catalyst's properties or performance.
Example: "The research paper presented several analyses of the catalyst used in the chemical reaction."
Alternatives: "examinations of the catalyst" or "studies of the catalyst".
Postmortem elemental and diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) analyses of the catalyst also supplemented our gas species measurements.
The Raman scattering, electron diffraction and photoelectron emission analyses of the catalyst surface evidenced the formation of a cobalt oxide spinel with crystallites of about 5 nm.
This has been shown by polarographic analyses of the catalyst solution before and after the reaction, and is also confirmed by the observation that cobalt, sequestered by EDTA, in the absence of tungstic acid is active, too.
IR and XPS analyses of the catalysts suggest that Si covers the Pd surface as Si or SiO2 patches.
Extended X-ray absorption fine structure and X-ray photoelectron spectroscopy analyses of the synthesized catalyst revealed that the nitrogen (N) atoms coordinated to copper (Cu) atoms were doped into the sp2networks of graphene.
The analyses of the modified catalyst by X-ray diffraction, Raman spectroscopy and X-ray photoelectron spectroscopy showed that the V2O5 and β-VOPO4 phases disappeared and suggested that an amorphous phase formed on the surface.
The catalytic activity studies are complemented by chemical composition, surface adsorption and structural analyses of the applied catalyst materials assessed by the means of X-ray photoelectron spectroscopy, energy-dispersive X-ray analysis, temperature programmed reduction, H2 and CO2 desorption, CO chemisorption, electron microscopy and X-ray diffraction, respectively.
In addition, thermogravimetric and morphology analyses of the reacted catalysts revealed that Ca introduction into the Ni Mg Al catalyst prevented the deposition of filamentous carbon on the catalyst surface.
TGA analyses of the used catalysts proved the formation of undesired insoluble by-products, mainly humins, on the surface of the used catalysts.
TG and TPD MS analyses of the spent catalysts show that the main products occluded within the zeolite pores are styrene, phenylacetaldehyde and benzaldehyde.
TEM analyses of the "spent" catalysts revealed that both "filamentous" and "encapsulating" carbon species were formed under isothermal conditions at 823 K, the last being responsible for catalyst deactivation.
