Infrared Thermography as a Powerful, Versatile, and Elegant Research Tool in Chemistry: Principles and Application to Catalysis and Adsorption

Abstract

In this Review, diverse chemical problems that have been approached by means of infrared thermography (IRT) are covered in depth. Moreover, some novel steps forward in this field are made, described and discussed. Namely, the latest‐generation IRT performance capabilities are harnessed in full; the initial phase of catalytic CO oxidation (called “fast ignition”) is presented at the 0.01 s temporal resolution; at the same resolution, the thermal manifestation of the adsorption‐desorption wave propagation after the gaseous reactant pulsed (0.6 s) wetting is exhibited. Furthermore, a radical difference in the thermal behavior of differently calcined γ‐Al2O3 supported Au catalysts, which underwent successive H2O and CO attacks, is demonstrated, and the generally accepted fact that the catalyst temperature reflects the catalytic activity is validated experimentally. It is shown that latest‐generation IRT may serve as unique and highly informative research tool in chemistry.

Radial artery pulse wave velocity: a new characterization technique and the instabilities associated with the respiratory phase and breath-holding

“…The main operating tool of this method is the high-performance focal plane array (FPA)-based infrared thermography (IRT)(Pron and Bissieux 2004, Vainer 2008) derived from an earlier-generation infrared (thermal) imaging(Weis et al 1973, Ring 1998, Deng et al 2015. Currently, FPA-based IRT is effectively used in biomedical(Gorbach et al 2003, Vainer 2005, Santa Cruz et al 2009, Lahiri et al 2012, Yavuz et al 2014, Lasanen et al 2015, Moreira et al 2017, physicochemical(Mutschler et al 2019, Vainer 2020, Vainer et al 2021, and many other applications. A modern FPA-based infrared camera TKVr-IFP/SVIT (frame rate 100 frames per second, temperature sensitivity 0.03 °C) equipped with a cooled infrared detector was exploited in our studies.SEIRT is based on the dynamic (about 100 fps and more) thermographic recording of the temperature changes caused by the phase transition heat release/absorption during the physical adsorption/desorption of…”