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Types and Applications of Chemochromic Sensors

Aditi Rai, Usha Shukla


Smart materials, also known as responsive or intelligent materials such as chemochromic materials changes colour upon exposure to a different environment or when react with different chemicals. Chemo chromic sensors are specially designed for robustness and can be used for leak detection in the vicinity of connections, valves, or Hydrogen line outlets. They can be altered, nevertheless, for a variety of uses. These are the materials whose colors and reflective qualities vary when exposed to various substances. This is a result of several chemical reactions that the material is undergoing. When an electron that was once a component of a chemical bond dislocates and takes up a new place inside the molecule, the substance absorbs a certain color of light depending on whether the electron is there or not. The aim is to provide a simple and robust Hydrogen sensor, when exposed to Hydrogen, changes colour and is not prone to failure. The sensor can be left in place during hazardous operations and does not require any operator or power intervention. Here, we will get to know about the use of these materials as sensors in different fields like Hydrogen detecting sensor, sensor for detecting Hypergolic fuels that are hazardous in their very nature.


Sensors, chemogenic materials, chemo chromic hydrogen sensor, NASA, hypergolic fuels

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