Acetone Gas Sensing Properties of NiO Particle-Decorated TeO2 Nanorod Sensors

作者：Park Sunghoon; Sun Gun Joo; Kheel Hyejoon; Choi Seungbok; Lee Chongmu^*

来源：Journal of Nanoscience and Nanotechnology, 2016, 16(8): 8589-8593.

DOI：10.1166/jnn.2016.12499

• TeO2
• NiO
• Nanorod
• Gas Sensor
• Acetone

TeO2 nanorods decorated with NiO nanoparticles were synthesized by the thermal evaporation of Te powder followed by solvothermal deposition of NiO and their acetone gas sensing properties were examined. The pristine and NiO-decorated TeO2 nanorods exhibited responses of similar to 262% and similar to 601%, respectively, to 500 ppm acetone at 125 degrees C. The pristine and NiO-decorated TeO2 nanorod sensors showed the strongest response to acetone gas at 150 degrees C and 125 degrees C, respectively. The NiO-decorated TeO2 nanorod sensor showed selectivity to acetone gas over other volatile organic gases such as methane, toluene, benzene, and LPG at 125 degrees C. The underlying mechanism for the enhanced response of the NiO-decorated TeO2 nanorod sensor to acetone gas is discussed.

• 出版日期2016-8