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Operando spectroscopy is a powerful analytical method used to characterise various molecular properties of catalytic systems including structure-activity and selectivity relationships.
The main goal of this technique is to uncover critical information about catalytic mechanisms to ultimately create efficient catalysts with high product yields. It is consequently extremely valuable in various fields of engineering, from process enhancement to new materials research.
At Hiden Analytical, we have developed a suite of quadrupole mass spectrometry systems that empower operators in catalyst development and research.
Understanding Operando Spectroscopy
Operando spectroscopy is sometimes referred to as in situ characterisation as it couples conventional spectroscopic characterisations of materials with simultaneous catalytic activity/selectivity measurement. Raman spectroscopy coupled with mass spectrometry is an ideal, complementary tool for such an experiment, providing detailed Raman spectra plus mass spectral profiles from samples under controlled, dynamic conditions.
Probing Hydrogen Release Mechanisms
Ammonia borane (H3NBH3) is an inorganic solid that releases up to two equivalents of hydrogen when thermally decomposed at temperatures below 200°C. This naturally makes it a highly promising hydrogen storage material, but its functionalisation has been inhibited by slow hydrogen release mechanisms. Operando spectroscopy has been used to investigate the release kinetics of hydrogen from AB contained in mesoporous carriers.
Studying the changes in composition, structure, and the rates of hydrogen release from candidate carriers at comparatively low temperatures are of enormous interest to catalyst researchers. At Hiden Analytical we are pleased to support efforts to elucidate the mechanisms of thermal decomposition. Contact us today to learn more.