Synthesis, Characterization, and Magnetic Studies of α-Fe2O3 Nanoparticles
Very fine nanosized metal oxide, namely, iron oxide (α-Fe2O3) has been synthesized by precipitation method using ammonia as precipitating agent and characterized by using XRD (X-ray diffraction), TGA/DTA, surface area measurement, transmission electron microscopy (TEM), and magnetic measurements tec...
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| Format: | Article |
| Language: | English |
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Wiley
2014-01-01
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| Series: | Journal of Nanotechnology |
| Online Access: | http://dx.doi.org/10.1155/2014/474909 |
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| author | Avnish Kumar Arora Mohan Sharma Ritu Kumari Vivek Sheel Jaswal Pankaj Kumar |
| author_facet | Avnish Kumar Arora Mohan Sharma Ritu Kumari Vivek Sheel Jaswal Pankaj Kumar |
| author_sort | Avnish Kumar Arora |
| collection | DOAJ |
| description | Very fine nanosized metal oxide, namely, iron oxide (α-Fe2O3) has been synthesized by precipitation method using ammonia as precipitating agent and characterized by using XRD (X-ray diffraction), TGA/DTA, surface area measurement, transmission electron microscopy (TEM), and magnetic measurements techniques. XRD studies show that iron oxide was formed as α-Fe2O3 instead of the commonly formed magnetite nanoparticles (Fe3O4) or a mixture of magnetite (Fe3O4) and maghemite (γ-Fe2O3, cubic), and it has rhombohedral structure. Magnetic measurements showed that iron oxide has five unpaired electrons and is ferromagnetic in nature, Ms value being 1.7 emu/g. The particle size of the synthesized iron oxide was determined by TEM. TEM images show that the size of particles of Fe2O3 varied from 15 nm to 49 nm with average crystallite size 35 nm. |
| format | Article |
| id | doaj-art-e8bdb9517dca4f3f9c8c302d3c433cb4 |
| institution | OA Journals |
| issn | 1687-9503 1687-9511 |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Nanotechnology |
| spelling | doaj-art-e8bdb9517dca4f3f9c8c302d3c433cb42025-08-20T02:22:01ZengWileyJournal of Nanotechnology1687-95031687-95112014-01-01201410.1155/2014/474909474909Synthesis, Characterization, and Magnetic Studies of α-Fe2O3 NanoparticlesAvnish Kumar Arora0Mohan Sharma1Ritu Kumari2Vivek Sheel Jaswal3Pankaj Kumar4Department of Chemistry, Maharishi Markandeshwar University, Mullana, Haryana 133207, IndiaDepartment of Chemistry, Maharishi Markandeshwar University, Mullana, Haryana 133207, IndiaDepartment of Chemistry, Maharishi Markandeshwar University, Mullana, Haryana 133207, IndiaDepartment of Chemistry, Maharishi Markandeshwar University, Mullana, Haryana 133207, IndiaDepartment of Chemistry, College of Engineering Studies, University of Petroleum and Energy Studies, Bidholi, Dehradun 248001, IndiaVery fine nanosized metal oxide, namely, iron oxide (α-Fe2O3) has been synthesized by precipitation method using ammonia as precipitating agent and characterized by using XRD (X-ray diffraction), TGA/DTA, surface area measurement, transmission electron microscopy (TEM), and magnetic measurements techniques. XRD studies show that iron oxide was formed as α-Fe2O3 instead of the commonly formed magnetite nanoparticles (Fe3O4) or a mixture of magnetite (Fe3O4) and maghemite (γ-Fe2O3, cubic), and it has rhombohedral structure. Magnetic measurements showed that iron oxide has five unpaired electrons and is ferromagnetic in nature, Ms value being 1.7 emu/g. The particle size of the synthesized iron oxide was determined by TEM. TEM images show that the size of particles of Fe2O3 varied from 15 nm to 49 nm with average crystallite size 35 nm.http://dx.doi.org/10.1155/2014/474909 |
| spellingShingle | Avnish Kumar Arora Mohan Sharma Ritu Kumari Vivek Sheel Jaswal Pankaj Kumar Synthesis, Characterization, and Magnetic Studies of α-Fe2O3 Nanoparticles Journal of Nanotechnology |
| title | Synthesis, Characterization, and Magnetic Studies of α-Fe2O3 Nanoparticles |
| title_full | Synthesis, Characterization, and Magnetic Studies of α-Fe2O3 Nanoparticles |
| title_fullStr | Synthesis, Characterization, and Magnetic Studies of α-Fe2O3 Nanoparticles |
| title_full_unstemmed | Synthesis, Characterization, and Magnetic Studies of α-Fe2O3 Nanoparticles |
| title_short | Synthesis, Characterization, and Magnetic Studies of α-Fe2O3 Nanoparticles |
| title_sort | synthesis characterization and magnetic studies of α fe2o3 nanoparticles |
| url | http://dx.doi.org/10.1155/2014/474909 |
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