Ceramic Sensors: A mini-review of their applications

Abstract

We are living in a sensor world. Sensors are used in the house, office, car, and other areas detecting our presence by turning lights on, adjusting room temperature, detecting fires, and many other tasks. Today sensor has become a “buzz word”, without which it is hard to imagine living. They play a vital role in all sectors including housing, industry, aviation, medicine, and automobiles to name a few. Sensors can be manufactured with many types of materials. However, sensors made of ceramics have significance and have advantages when compared to those made from other materials. This mini review examines ceramic sensors and their applications in various sectors including the materials used to build them and their functioning in different areas. The paper precisely reports ceramic sensors and their applications in industry, including the medical, automotive, and aviation sectors.

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“…The purity of H 2 depends on the electrolyser load because the absolute gas crossover through the anode/cathode separator is essentially load-independent, whereby at low loads, the relative crossover can become significant. Industrial-grade gas sensors are commercially available, e.g., electrochemical O 2 sensors [21] and ceramic moisture sensors [22]. Trace analysis is not routinely carried out; however, it may be advantageous for commercial applications (especially in fuel cells).…”

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“…In modern society, gas sensing is a crucial procedure in a variety of tasks, from contamination prevention to toxic molecule detection; all require the aid of gas sensors. − Various sensing materials, metal oxides, conducting polymers, and ceramics, for instance, − have been subjected to meticulous scrutiny. Additionally, sensing targets, such as humidity and toxic chemicals, have been extensively researched. − In particular, research toward high response and selectivity has gained huge interest; a sensitivity as low as 10 ppm has been observed, and a selecting response up to 4000 times its signal has been reported in previous literature. , While sensibility and distinguishability are critical areas of study, this work concentrates on the fundamental issue of the sensing mechanism and the inevitable matter of signal recovery.…”