One step microwave synthesis and magnetic properties of Co3O4 octahedrons
Synthesis of nanocrystals with highly symmetric microstructure is a well-known challenge in many fields of science and technology. In this work, Well-defined uniform Co3O4 octahedrons were synthesized via a simple one step microwave reaction, in which different carbon materials were introduced actin...
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| Main Authors: | , , , , , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | English |
| Published: |
2013
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| Online Access: | https://hdl.handle.net/10356/98396 http://hdl.handle.net/10220/17278 |
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| Institution: | Nanyang Technological University |
| Language: | English |
| Summary: | Synthesis of nanocrystals with highly symmetric microstructure is a well-known challenge in many fields of science and technology. In this work, Well-defined uniform Co3O4 octahedrons were synthesized via a simple one step microwave reaction, in which different carbon materials were introduced acting not only as secondary heater, but also as morphology directing agent. The crystal-structure and shape of the samples are examined systemically by using X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM) and high-resolution transmission electron microscopy (HRTEM). The octahedral Co3O4 obtained by carbon nanotubes (CNTs) assisting microwave process exhibited a weak ferromagnetic property. Its saturation magnetization values (Ms) and coercivity (Hc) values are 234.25 emu/g and 73.513 Oe, respectively. |
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