Curly porous NiO nanosheets with enhanced gas-sensing properties

Curly porous NiO nanosheets were successfully fabricated by a simple hydrothermal approach. Changing the amount of ammonia, we obtained NiO nanosheets with different morphologies. Thus it could be seen the important role of ammonia in synthesizing curly porous NiO nanosheets. The structure, morphologies and gas-sensing properties of these samples were studied. Among these samples, the curly porous NiO nanosheets sensor exhibits significant improvement on ethanol gas sensing properties.