Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7717443 | International Journal of Hydrogen Energy | 2015 | 6 Pages |
Abstract
A reliable fast response and non-maintenance hydrogen gas sensor is presented, which can be easily fabricated through sputtering palladium nanolayer onto uniaxially aligned electrospun polyurethane nanofibers. The designated palladium sensing nanolayer undergoes an irreversible cracking while being exposed to hydrogen gas, which induces a great resistance increases. Efficient and credible fabrication is investigated through a designed electrospinning device and the sensors show highly reliable response with good consistency. It has been shown that the sensor can detect hydrogen gas concentration as low as 20Â ppm with response time less than 60Â s and maximum relative resistance variance more than 70%. With its low-cost and easy-fabrication characteristics, this simplified nanofiber sensor provides an efficient and low cost solution for hydrogen leakage detection at scenarios where fast response, low concentration and room temperature working are essentially required.
Keywords
Related Topics
Physical Sciences and Engineering
Chemistry
Electrochemistry
Authors
Ran Chen, Xiaodong Ruan, Weiting Liu, Cesare Stefanini,