Abstract
The increasing rate of environmental pollution and the emergence of new infectious diseases have drawn much attention toward the area of gas sensors for air quality monitoring and early-stage disease diagnosis, respectively. Polyaniline (PANI) has become one of the extensively studied polymers in the area of chemical sensing due to its good conductivity and sensitivity at room temperature. The development of room-temperature gas sensors represents a significant leap forward in air quality monitoring by conserving energy and enhancing the feasibility of the commercial development of sensing technologies. New research shines a light on the advantages of using PANI with materials such as semiconductor metal chalcogenides, metal oxides, metal nanoparticles, and graphitic carbon materials to form composites that can sense chemicals selectively at room temperature. This review focuses on the advancements in PANI-based gas sensors, exploring the materials, mechanisms, and applications that make these sensors a promising solution for modern air quality monitoring challenges. By examining the latest research and innovations, we aim to highlight this critical technology’s potential and future directions, instilling hope and optimism in safeguarding public health and the environment.
Published Version
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