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| Content Provider | IET Digital Library |
|---|---|
| Author | Mao, Hong Li, Jian Chen, Longlong Lin, Yueqiang Liu, Xiaodong Li, Junming Gong, Xiaomin Li, Decai |
| Abstract | γ-Fe2O3 nanoparticles coated with a layer of FeCl3·6H2O were prepared by chemically induced transition in FeCl2 solution. NaOH was added to the reaction solution, to investigate the effect of alkalinity on the resulting particles. Vibrating sample magnetometry, transmission electron microscopy, X-ray diffraction, energy-dispersive X-ray spectroscopy and X-ray photoelectron spectroscopy were used to characterise the products. Additional NaOH stimulated the epitaxial growth of γ-Fe2O3 on the γ-Fe2O3 crystallites and more FeCl3·6H2O adsorbed on γ-Fe2O3. Under the experimental conditions, the increase in γ-Fe2O3 content was larger than that of FeCl3·6H2O, at ≤0.7 M NaOH. At >0.7 M NaOH, the increase in γ-Fe2O3 content was less than that of FeCl3·6H2O. The non-monotonic variation of the FeCl3·6H2O/γ-Fe2O3 ratio was consistent with this result, and was consistent with the variation in apparent specific magnetisation with increasing NaOH concentration. |
| Starting Page | 782 |
| Ending Page | 786 |
| Page Count | 5 |
| Volume Number | 9 |
| e-ISSN | 17500443 |
| Issue Number | Issue 11, Nov (2014) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/mnl/9/11 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/mnl.2014.0410 |
| Journal | Micro & Nano Letters |
| Publisher Date | 2014-11-06 |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | Alkalinity Effect Apparent Specific Magnetisation Auger Spectroscopy Barkhausen Chemically Induced Transition Crystallites EDX Electromagnetic Radiation Spectrometry (chemical Analysis) Electron Spectroscopy For Chemical Analysis Energy-dispersive X-Ray Spectroscopy Epitaxial Growth Fe2O3−FeCl3H2O Hysteresi Iron Compound Magnetisation Magnetization Curves Magnetometry Method of Nanofabrication And Processing Microstructure Nanofabrication Nanoparticle Nanoparticle Preparation Nanotube And Nanostructured Material NaOH Concentration Photoelectron Photoelectron Spectra of SemiConductor And Insulator Reaction Solution Structure of Solid Clusters TEM Transmission Electron Microscopy Vibrating Sample Magnetometer X-Ray Chemical Analysis X-Ray Diffraction X-Ray Photoelectron Spectroscopy XPS XRD |
| Content Type | Text |
| Resource Type | Article |
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