RT Journal Article T1 High-performance room-temperature conductometric Gas sensors: materials and strategies A1 Vázquez López, Antonio A1 Bartolomé Vílchez, Javier A1 Cremades Rodríguez, Ana Isabel A1 Maestre Varea, David AB Chemiresistive sensors have gained increasing interest in recent years due to the necessity of low-cost, effective, high-performance gas sensors to detect volatile organic compounds (VOC) and other harmful pollutants. While most of the gas sensing technologies rely on the use of high operation temperatures, which increase usage cost and decrease efficiency due to high power consumption, a particular subset of gas sensors can operate at room temperature (RT). Current approaches are aimed at the development of high-sensitivity and multiple-selectivity room-temperature sensors, where substantial research efforts have been conducted. However, fewer studies presents the specific mechanism of action on why those particular materials can work at room temperature and how to both enhance and optimize their RT performance. Herein, we present strategies to achieve RT gas sensing for various materials, such as metals and metal oxides (MOs), as well as some of the most promising candidates, such as polymers and hybrid composites. Finally, the future promising outlook on this technology is discussed PB MDPI SN 2227-9040 YR 2022 FD 2022-06 LK https://hdl.handle.net/20.500.14352/71827 UL https://hdl.handle.net/20.500.14352/71827 LA eng NO © 2022 by the authors. Licensee MDPIThis research was funded by the Spanish Ministry of Innovation and Technology and the Spanish Ministry of Economy through Project RTI2018-097195-B-100. This research received funding from the Comunidad de Madrid and Universidad Autónoma de Madrid under the V PRICIT program through the Project SI3/PJI/2021-00393. NO Ministerio de Ciencia e Innovación (MICINN) NO Comunidad de Madrid / Universidad Autónoma de Madrid (UAM) DS Docta Complutense RD 6 abr 2025