Figure 1 | Scientific Reports

Figure 1

From: Simulation of gas sensing mechanism of porous metal oxide semiconductor sensor based on finite element analysis

Figure 1

Mass transfer model of the sensor surface reaction. I: The measured substance transferred from the environment to the sensor surface; II: The measured substance diffuses from the through-hole of the sensor to the internal surface of the sensor; III: The measured substance Adsorb on the sensor surface; IV: The measured substance reacts with the surface substance; V: The reacted substance desorbed from the sensor surface; VI: The reaction product diffuses from the through-hole of the sensor to the sensor surface; VII: The product moves from the sensor surface to the environment.

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