By definition, “in situ” describes the collection of catalytic behavior in the same conditions relevant to practical catalytic operation, whereas “operando” combines in situ characterization of a working catalyst during genuine reaction conditions with simultaneous measurement of catalytic performance.

What is the difference between operando and in situ?

“Operando is borrowed from Latin”, which means “working” or “operating” since the spectra are of an “operating” catalyst, whereas, “in situ” means “on site”. ... Variable-programmed in situ studies may follow the materials under many conditions relevant to catalysis (pressure, temperature, reactant concentration, etc.)

What is meant by operando?

“Operando” is a recent Latin word meaning “working” or “operating” and has been used in the field of catalyst research from 2002. ... Operando measurement serves as one of the main research subjects at the Laser and Synchrotron Research (LASOR) Center in ISSP founded in 2012.