Gas Sensors: Recent Advances and Future Challenges
A special issue of Chemosensors (ISSN 2227-9040). This special issue belongs to the section "Materials for Chemical Sensing".
Deadline for manuscript submissions: 25 December 2026 | Viewed by 1327
Special Issue Editor
Special Issue Information
Dear Colleagues,
The rapid expansion of industries in the modern era has significantly impacted the environment, leading to the release of harmful and toxic gases such as CO2, H2S, NH3, NO2, and volatile organic compounds (VOCs). These pollutants disrupt the ecological balance, contribute to global warming, and pose serious health risks. Therefore, the use of gas sensors to detect even trace amounts of these toxic gases is crucial for monitoring environmental pollution, controlling industrial emissions, and ensuring household safety. To achieve effective gas detection, it is essential to develop sensors with a combination of key attributes, including high receptor and transducer functions, low fabrication costs, minimal power consumption, and the ability to operate at low temperatures. These sensors should exhibit high sensitivity, selectivity, stability, and rapid response and recovery times to ensure reliable performance in environmental and industrial safety applications.
In this context, various sensing materials—including metal oxides, semiconductors, 2D materials, polymers, carbon-based materials, and metal/covalent-organic frameworks—play a crucial role in detecting trace amounts of toxic gases in real-time. Recent efforts to enhance sensor performance have focused on structural modifications, metal decoration, surface functionalization, nanocomposites, and doping. These strategies aim to increase surface area, oxygen vacancies, and active sites, thereby facilitating improved charge carrier transport and boosting sensing capabilities.
This Special Issue aims to highlight the latest advancements in low-cost emerging materials and their applications in gas sensing technologies. We invite contributions on material synthesis, fabrication techniques, characterization methods, and sensor device applications, with a focus on novel approaches to improving gas sensing performance for environmental and industrial monitoring.
Dr. Sahil Gasso
Guest Editor
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Keywords
- gas sensors
- chemical sensors
- metal oxides
- semiconductors
- two-dimensional materials
- functional materials
- polymers
- metal/covalent–organic framework
- carbon-based materials
- nanocomposites
- nanoparticles
- heterostructures
- surface and interface
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