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| Content Provider | Royal Society of Chemistry (RSC) |
|---|---|
| Author | Feng, Rui Wei, Qin Zhai, Qingfeng Du, Bin Xu, Weiying |
| Copyright Year | 2014 |
| Abstract | Novel sensing materials, Pd-supported Fe3O4 nanoparticles (Pd@Fe3O4), were successfully prepared and characterized by X-ray diffraction (XRD), energy dispersive X-ray spectroscopy (EDS), scanning electron microscopy (SEM) and high-resolution transmission electron microscopy (HRTEM) in this study. The gas sensing properties of the Pd@Fe3O4 nanoparticles were systematically investigated. The results showed that the doped Pd could significantly enhance the gas sensing characteristics of Fe3O4. The Pd@Fe3O4 nanoparticles present high sensitivity to diverse volatile organic compounds (VOCs), such as methanol, ethanol, propanol, acetone, etc. The response and recovery time towards 40 ppm of ethanol at 300 °C were 18 s and 30 s, respectively. The enhanced sensor performance was attributed to the catalytic properties of Pd nanoparticles, and a possible mechanism was proposed. |
| Starting Page | 886 |
| Ending Page | 892 |
| Page Count | 7 |
| File Format | HTM / HTML PDF |
| ISSN | 17599660 |
| Volume Number | 6 |
| Issue Number | 3 |
| Journal | Analytical Methods |
| DOI | 10.1039/c3ay41867g |
| Language | English |
| Publisher | Royal Society of Chemistry |
| Access Restriction | Open |
| Subject Keyword | X-ray crystallography Isopropyl alcohol Energy-dispersive X-ray spectroscopy Ethanol High-resolution transmission electron microscopy Volatile organic compound Scanning electron microscope Methanol Acetone |
| Content Type | Text |
| Resource Type | Article |
| Subject | Analytical Chemistry Engineering Chemical Engineering |
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