A calorimetric-type gas sensor for the detection of hydrogen
peroxide, which has been developed in the authors' laboratory and
four commercially available MOX sensors have been investigated.
The calorimetric H2O2 sensor was previously described in detail
by several publications of the authors (Kirchner, Reisert, &
Sch€oning, 2014; Reisert et al., 2010). In short, it consists of a differential
set-up of two temperature sensors, wherein one of the
temperature sensors is catalytically activated by MnO2 powder and
the second one is passivated by a perfluoroalkoxy (PFA) coating. In
presence of hydrogen peroxide, a temperature difference between
the catalytically activated and the passivated sensor, caused by the
exothermal reaction of hydrogen peroxide on the catalyst,