Abstract
Some relevant aspects of Electron Paramagnetic Resonance (EPR) applied to the fields of surface chemistry and heterogeneous catalysis are illustrated in this perspective paper that aims to show the potential of these techniques in describing critical features of surface structures and reactivity. Selected examples are employed covering distinct aspects of catalytic science from morphological analysis of surfaces to detailed descriptions of chemical bonding and catalytic sites topology. In conclusions the pros and cons related to the acquisition of EPR instrumentations in an advanced laboratory of surface chemistry and heterogeneous catalysis are briefly considered.Graphic
Highlights
Electron Paramagnetic Resonance, EPR, has been employed in experimental research on surface chemistry and heterogeneous catalysis since the beginning of the sixties
Beside the classic EPR acronym, the broader Electron Magnetic Resonance (EMR) one has been introduced that includes a variety of experimental approaches involving the interactions of electron magnetic dipoles with an external magnetic field
The former one is: what are the main aspects of surface chemistry and heterogeneous catalysis that can conveniently be investigated by electron magnetic resonance techniques? The second one is: what are the potential advantages for a research group in these disciplines that intends to invest in an EPR instrumentation? The answer to the former question will be provided using a number of specific examples mainly derived from the experience of our group and covering distinct areas the catalytic sciences
Summary
Electron Paramagnetic Resonance, EPR, has been employed in experimental research on surface chemistry and heterogeneous catalysis since the beginning of the sixties. This technique, after the first experiment performed by E. Beside the classic EPR acronym, the broader Electron Magnetic Resonance (EMR) one has been introduced that includes a variety of experimental approaches involving the interactions of electron magnetic dipoles with an external magnetic field. Both acronyms will be used in the present article that has been written with the aim of answering two elementary questions. The advantages of EMR and the disadvantages, that inevitably limit an even more widespread use of these techniques, will be briefly discussed
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