Cellulose-precursor synthesis of nanocrystalline Co 0.5Cu 0.5Fe 2O 4 spinel ferrites
Nanocrystalline Cu 0.5Co 0.5Fe 2O 4 powders were prepared via a metal-cellulose precursor synthetic route. Cellulose was used as a fuel and a dispersing agent. The resulting precursors were calcined in the temperature range of 450-600 °C. The phase development of the samples was determined by using...
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| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
2014
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| Online Access: | http://www.scopus.com/inward/record.url?eid=2-s2.0-84855685012&partnerID=40&md5=d58d9213fedf6f7364f6ca565436e2f1 http://cmuir.cmu.ac.th/handle/6653943832/6860 |
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| Institution: | Chiang Mai University |
| Language: | English |
| Summary: | Nanocrystalline Cu 0.5Co 0.5Fe 2O 4 powders were prepared via a metal-cellulose precursor synthetic route. Cellulose was used as a fuel and a dispersing agent. The resulting precursors were calcined in the temperature range of 450-600 °C. The phase development of the samples was determined by using Fourier transform infrared (FT-IR) spectroscopy and powder X-ray diffraction (XRD). The field-dependent magnetizations of the nanopowders were measured by vibrating sample magnetometer (VSM). All XRD patterns are of a spinel ferrite with cubic symmetry. Microstructure of the ferrites showed irregular shapes and uniform particles with agglomeration. From XRD data, the crystallite sizes are in range of 16-42 nm. Saturation magnetization and coercivity increased with increasing calcining temperature due to enhancement of crystallinity and reduction of oxygen vacancies. © 2011 Elsevier Ltd. All rights reserved. |
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