Ultra-High Performance Fibrous Ammonia Sensor with Full Degradability
Jinzhu Huang1, Hanguang Wu2, Zhiqiang Su1
1State Key Laboratory of Chemical Resource Engineering, Beijing Key Laboratory of Advanced Functional Polymer Composites, Beijing University of Chemical Technology, Beijing 100029, China.
ACS Sensors
|May 28, 2025
Summary
Researchers developed a novel, eco-friendly fibrous sensor for detecting ammonia (NH3) with high sensitivity and rapid response. This biodegradable sensor enables real-time monitoring for applications like leakage warnings and spoilage detection.
Area of Science:
- Materials Science
- Chemical Sensors
- Environmental Monitoring
Background:
- Developing portable, real-time ammonia (NH3) sensors is crucial.
- Challenges remain in creating fibrous sensors that are lightweight, flexible, integrable, eco-friendly, and highly performing.
Purpose of the Study:
- To develop a fully degradable fibrous ammonia sensor with superior sensing performance.
- To address the limitations of current NH3 detection technologies.
Main Methods:
- Fabrication of a multicomponent aerogel fiber with a 3D mesoporous structure.
- Characterization of the sensor's response to ammonia.
Main Results:
- Achieved ultrahigh sensitivity (807% response at 100 ppm NH3).
- Demonstrated rapid response (24.1 s) and recovery (2.2 s) times.
- Exhibited good selectivity and ultralow detection limit (1 ppb).
Conclusions:
- The developed aerogel fiber sensor offers excellent performance for ammonia detection.
- An integrated NH3 alert system was successfully fabricated for leakage warning and food spoilage alerting.
