Calorimetric gas sensors with catalytic decomposition of H2O2 by MnO2 based on heat flux sensors

Abstract

In the presented work, the first research attempt was made to create an H2O2 gas sensor based on heat f lux sensors (HFS). We proceeded from the fact that H2O2 gas sensors already exist that operate on the principle of the difference in registered temperatures: one sensor measures the temperature of the H2O2 gas, and the other sensor measures the temperature of the catalyst (MnO2), on which the exothermic reaction of H2O2 decomposition with heat release occurs. The temperature difference determines the concentration of H2O2 gas.