Response of Nafion to Contact with Ketone Like Substances | Chapter 1 | Current Topics and Emerging Issues in Materials Sciences Vol. 1

 Nafion is a sulfonated tetrafluoroethylene-located fluoropolymer-copolymer, which is an wonderful material for fuel cell membranes. This widely used copolymer has happened investigated for decades, but it has happened hardly considered as a impressionable layer to basic vapours, but only as a conductor of electricity. However, allure sensitive characteristics make it an interesting material for sensor uses. Indeed, the mass production concerning this material open new developments to design reliable and inferior sensors, useful for military, industrialized and medical applications. In this work, we study Nafion (and finally other ionomers) tangible and transport response when it enters in contact with ketone vapours, on the outlook to design new chemical sensors, shorter and cheaper.This work shows the feasibility to employ sulfonated tetrafluoroethylene-based fluoropolymer-copolymer, commercially popular as Nafion, as a sensible coating on sensors to detect organic solvent such as ketones. The discovery and evaluation of ketone corpuses is very important for diversified applications on cure, specially to detect and judge Diabetes Mellitus from the breath of subjects. Nafion is a very stable copolymer, easily accessible and relatively cheap. This allows us to envision the feasibility of having vulgar and reliable sensors to detect vapours of these elements based on this copolymer. The main result of the work is that; Nafion can protonate gaseous ions from basic solvents, such as acetone and complementary substances, that modify its energetic properties, giving a differentiated behavior in accordance with the chemical type of these substances, which keep lead to their labeling, designing an electrical nose, cause each behaviour is a fingerprint of the element to detect. Then this material can be secondhand in the design of electrical sensors, that can be low-cost, trustworthy, and chemically stable, acting as an agent an excellent alternative to ceramic sensors.

Author(s) Details:

Ing. Miguel Alonso Orozco Alvarado,
Centro de Investigacion en Materiales Avanzados, Miguel de Cervantes No. 120, Complejo Industrial Chihuahua, Mexico.

Nancy Janeth Navarro Torres,
Centro de Investigacion en Materiales Avanzados, Miguel de Cervantes No. 120, Complejo Industrial Chihuahua, Mexico.

Alfredo Marquez Lucero,
Centro de Investigacion en Materiales Avanzados, Miguel de Cervantes No. 120, Complejo Industrial Chihuahua, Mexico.

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