Abstract
We report a simple fabrication of a gas sensor using a nanohybrid composite of reduced graphene oxide/cuprous oxide (rGO/Cu2O). The deoxidation of GO occurs meanwhile with the synthesis of Cu2O. The Cu2O component of the nanohybrid material has a linear morphology and a micron size, which is homogeneously mixed with rGO. The rGO/Cu2O gas sensor can effectively detect ppm level of NO2 gas, showing an outstanding reusability. Because rGO/Cu2O has a large specific surface area, it is more conducive to gas adsorption on its surface. Its good effect on detecting NO2 proves that the sensor has good commercial prospects.
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