Biomimetic Gradient Porous Core–Shell Fibers with Enhanced Gas Sensing for CO-Temperature Dual-Mode Early Fire Warning
Highlights A biomimetic gradient porous core–shell fiber with enhanced gas-sensing capabilities for CO-temperature early fire warning is fabricated via a coaxial wet-spinning technology. The gradient porous sheath with SnO 2 /In 2 O 3 heterojunction endows enhanced CO gas-sensing performance with high sensitivity, low detection limit and improves the CO respond of by 15%. The CO-temperature dual-mode sensing fiber integrated with a wireless early fire-warning system achieves a rapid respond to fire in ~3 s and detects 10 ppm CO gas within 19 s.
Authors
- Siqi Huo (ORCID: https://orcid.org/0000-0002-6454-5208)
- Hualing He (ORCID: https://orcid.org/0000-0002-0793-7723)
- Lele Huang
- Md Hasib Mia
- Min Hong
- Zhicai Yu (ORCID: https://orcid.org/0000-0002-4977-2939)
- Jianan Jiang
- Xingyu He
- Mi Zhou
- Xiaoqian Li
Institutions
- Donghua University (CN)
- University of Southern Queensland (AU)
- Wuhan Textile University (CN)
Publication Details
- Journal
- Nano-Micro Letters
- Published
- 2026-08-03
- DOI
- https://doi.org/10.1007/s40820-026-02292-8
- Primary Topic
- Gas Sensing Nanomaterials and Sensors
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- University of Southern Queensland
- Wuhan Textile University