Calorimetric Gas Sensors for Hydrogen Peroxide Monitoring in Aseptic Food Processes

Strategies in developing thin-film sensors for monitoring aseptic food processes: Theoretical considerations and investigations of passivation materials

“…An enhancement of process reliability can be achieved by implementing H 2 O 2 gas sensors into the process. To enable in-line process monitoring specially designed calorimetric gas sensors have been discussed, recently [8][9][10][11][12]. Since, commercially available gas sensors are not able to withstand the harsh process conditions.…”

Thermocatalytic Behavior of Manganese (IV) Oxide as Nanoporous Material on the Dissociation of a Gas Mixture Containing Hydrogen Peroxide

“…Consequently, another sensor type to monitor and determine the concentration of gaseous H O at elevated temperatures as applied during sterilization processes in aseptic filling machines is based on the calorimetric principle. Such calorimetric sensors have been previously developed in our research institute [ 10 , 12 , 18 , 19 , 27 , 32 , 33 , 34 , 35 , 36 ]. Hereby, a differential calorimetric sensor set-up was concepted, fabricated and tested to monitor the concentration of H O containing gas at elevated temperatures.…”

“…Porous heterogeneous catalytic structures made of oxides of manganese (Mn O ) are also commonly researched H O catalysts [ 5 , 8 , 39 ]. In the last decade, catalytic structures based on MnO are tested as a compatible active substance of calorimetric H O gas sensors [ 12 , 36 , 40 ].…”