The escalating development and improvement of gas sensing
ability
in industrial equipment, or “machine olfactory”, propels
the evolution of gas sensors toward enhanced sensitivity, selectivity,
stability, power efficiency, cost-effectiveness, and longevity. Two-dimensional
(2D) materials, distinguished by their atomic-thin profile, expansive
specific surface area, remarkable mechanical strength, and surface
tunability, hold significant potential for addressing the intricate
challenges in gas sensing. However, a comprehensive review of 2D materials-based
gas sensors for specific industrial applications is absent. This review
delves into the recent advances in this field and highlights the potential
applications in industrial machine olfaction. The main content encompasses
industrial scenario characteristics, fundamental classification, enhancement
methods, underlying mechanisms, and diverse gas sensing applications.
Additionally, the challenges associated with transitioning 2D material
gas sensors from laboratory development to industrialization and commercialization
are addressed, and future-looking viewpoints on the evolution of next-generation
intelligent gas sensory systems in the industrial sector are prospected.