| 초록 |
The accidental seepage of hydrocarbon liquids into the environment, whether from pipelines, underground storage tanks, plugged wells, spills from industrial processes, or from other forms of containment, is a chronic problem. We have developed and optimized a conductivity-based sensor for the presence of liquid phase hydrocarbons. The sensing electrode was fabricated through the addition of carbon nanotubes to a conducting resin. This electrode was shown to be both conductive and hydrophobic, while also being able to interact with a variety of inorganic solvents and perform as a sensor for their presence. The electrical conductivity of the electrode decreases rapidly upon exposure to hydrocarbons, with half-lives typically measured in seconds. It was observed that the response times vary systematically within each class of hydrocarbons tested, offering the possibility of determining composition (ACS Sens, 2, 757, 2017). |
