Size-controlled synthesis of ZnO nanorods for highly sensitive NO\(_2\) gas sensors

The nanostructure of zinc oxide has excellent potential in gas sensing applications to detect and monitor toxic gases the atmosphere. Appropriate nanostructures can enhance performance sensors. In this study, we report controlled fabrication ZnO nanorods different sizes by a simple hydrothermal method, which be applied NO2 efficiently. size was varying amount D-Glucose. morphology crystal structure materials were analyzed using advanced techniques such as field-emission scanning electron microscopy, X-ray diffraction patterns, energy-dispersive spectroscopy. sensor's response based on at 2 ppm is 13.3 18.8 times higher than that 500 CO NH3, respectively. addition, sensor also exhibits good selectivity repeatability for gas; optimum working temperature about 150 oC. \[H_2= H_1+ H_1 \tag{1}\] H2 hoac