Chemiresistive gas sensors for intelligent sensing: design strategies, emerging applications and future challenges

作者：Chencheng Hu, Wei Zhang, Jiaqi Yang, Yuehan Pei, Xiaoyi Tan, Biao Dong, Hongwei Song, Lin Xu · 发表于：Chemical Society Reviews · 年份：2025 · DOI：10.1039/d5cs00979k · 被引用次数：41 · 研究领域：Gas Sensing Nanomaterials and Sensors、Advanced Chemical Sensor Technologies、2D Materials and Applications

Intelligent chemiresistive gas sensing platforms are emerging as pivotal technologies for addressing global challenges such as climate change, urbanization, and public health crises. As core components of modern sensing systems, these platforms demonstrate immense potential in environmental monitoring, industrial safety, and medical diagnostics. Chemiresistive gas sensors, with their high sensitivity, rapid response, low power consumption, and miniaturization capabilities, serve as a key enabler for next-generation intelligent gas sensing. However, critical challenges remain in selectivity, long-term stability, energy efficiency, and scalable manufacturing. Recent advancements in materials science, including the development of novel materials such as metal-organic frameworks, two-dimensional transition metal dichalcogenides, and MXenes, has expanded design possibilities for sensors. Meanwhile, progress in artificial intelligence and the Internet of Things have significantly enhanced chemiresistive sensors, where machine learning algorithms improve selectivity, dynamically compensate for environmental interference, and facilitate distributed data training to optimize performance. This review systematically examines the design strategies, emerging applications, and current challenges of intelligent chemiresistive gas sensing platforms, with a focus on their multidimensional evolution from material innovation to cognitive decision-making. Furthermore, it explores future directio...