Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8015682 | Materials Letters | 2018 | 12 Pages |
Abstract
A hydrogen sensor has been proposed by coating Pd nanoparticles-PMMA composite organic sol on silica microfiber independent on any expensive or complex chemical process. The thickness of cladding layer and the diameter of elaborated microfiber were determined as â¼20â¯Î¼m and â¼57.93â¯Î¼m, respectively. Due to the evanescent wave excited by silica microfiber and the amorphous structure of PMMA film, the Pd nanoparticles effectively absorbed the hydrogen molecules and resulted in the shift of resonance wavelength. The experimental results match well with an exponential curve with an average sensitivity of 5.58â¯nm/%, which is comparable to other electrochemical hydrogen sensors reported recently.
Related Topics
Physical Sciences and Engineering
Materials Science
Nanotechnology
Authors
Jin Li, Rui Fan, Haifeng Hu, Chengbao Yao,