| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 742849 | Sensors and Actuators B: Chemical | 2014 | 6 Pages |
FeP4 and Fe2P-loaded hematite (α-Fe2O3) (FFH) hollow spheres with a diameter of 130–410 nm were synthesized by a hydrothermal method. The structure and morphology of the FFH hollow spheres were characterized by X-ray diffraction (XRD), transmission electron microscope (TEM), field-emission scanning electron microscope (FESEM), and X-ray photoelectron spectroscopy (XPS). Nitrogen adsorption–desorption isothermal measurements revealed that the FFH hollow spheres have larger BET surface area and mesopores. The gas-sensing performance of the FFH hollow spheres was investigated towards a series of typical organic solvents and fuels. The FFH hollow spheres exhibited a superior sensitivity towards flammable and irritant gases. The possible sensing mechanism of the FFH hollow spheres sensor is also proposed.
Graphical abstractThe FeP4 and Fe2P doped hematite (α-Fe2O3) hollow spheres were synthesized, and their gas-sensing performances were significantly improved.Figure optionsDownload full-size imageDownload as PowerPoint slide
