Related Experiment Video
Updated: Aug 5, 2026
09:28
Fabrication and Testing of Catalytic Aerogels Prepared Via Rapid Supercritical Extraction
Published on: August 31, 2018
Gas Sensing With Aerogels: A Critical Review on Structure-Property Correlations and Performance Optimization
Hao Guo1,2, Linheng He1,2, Qinxin Wang1,2
1State Key Laboratory of Materials-Oriented Chemical Engineering, College of Materials Science and Engineering, Nanjing Tech University, Nanjing, China.
Advanced Science (Weinheim, Baden-Wurttemberg, Germany)
|July 27, 2026
Summary
This review explores aerogel-based gas sensors for environmental monitoring and industrial safety. It highlights structure-property relationships and optimization strategies for enhanced sensitivity and selectivity in gas detection.
Area of Science:
- Materials Science
- Chemical Engineering
- Sensor Technology
Background:
- Aerogels offer unique structural advantages for high-performance gas sensing.
- Existing research lacks systematic evaluation of structure-property correlations in aerogel gas sensors.
- Optimization strategies for aerogel gas sensors require comprehensive review.
Purpose of the Study:
- To systematically review aerogel-based gas sensing materials and mechanisms.
- To analyze the relationship between aerogel structural parameters and sensing performance.
- To identify key challenges and propose a research framework for aerogel gas sensor development.
Main Methods:
- Literature review of aerogel gas sensing research.
- Focus on metal oxide, sulfide, and carbon-based sensing aerogels.
- Benchmarking sensing performance for nitrogen oxides, ammonia, and aldehydes.
Main Results:
- Aerogels exhibit high specific surface area and interconnected networks beneficial for gas sensing.
- Key structural parameters like surface area and pore size directly influence sensitivity, selectivity, and kinetics.
- Identified specific aerogel types and their sensing mechanisms for various target gases.
Conclusions:
- Aerogel design is crucial for optimizing gas sensor performance.
- Establishing quantitative structure-property relationships is essential for rational design.
- Future work should focus on environmental stability, selectivity engineering, and scalable manufacturing.
