SnO2 is a kind of surface-control sensing material, and have high sensitivity to combustible and dangerous gases, such as CO, hydrocarbons ,ethanol etc.

• SnO2是一种表面控制型氧化物气体敏感材料，对许多可燃性气体，如氢、一氧化碳、甲烷、乙醇等都具有相当高的灵敏度，这与其利用半导体表面吸附来控制电导率的气敏机理有关。