MXene-based Gas Sensors represents a significant contribution to the field, encompassing the latest theoretical and experimental investigations. It meticulously covers the classification of MXenes, their fundamental properties and synthesis approaches, providing an important resource for researchers and students. It further includes theoretical perspectives and in-depth insights into the gas sensing mechanisms of MXene-based sensors, along with a comprehensive classification of gas sensor devices, fabrication techniques, and evaluation parameters, filling a significant gap in the literature. The book also addresses advanced topics, including tuning approaches for enhancing the performance and selectivity of MXene-based gas sensors, specific applications such as NH3 and NO2 gas sensing, chemical vapor detection, humidity sensing, and the emerging domains of flexible, wearable and self-powered MXene-based gas sensors. The book will be useful for graduate students engaged in sensors research and as a reference for industry professionals. Key Features: Includes chapter contributions from subject-area experts. Presents the latest cutting-edge research on flexible, wearable and self-powered MXene-based gas sensors. Explores the uses of MXene-based gas sensors, regarded as sustainable, for commercial applications.