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Sol–gel autocombustion synthesis and characterization of Fe1−x Co x alloys with large saturation magnetization

  • Original Paper: Sol–gel and hybrid materials for dielectric, electronic, magnetic and ferroelectric applications
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Abstract

Fe1−x Co x alloys were synthesized by sol–gel autocombustion method. The atomic ratios of Fe:Co were easily controlled by adjusting the relative concentration of Fe3+ and Co2+ in the preparation of the precursor gels. Their phases and compositions were confirmed by X-ray diffraction and energy-dispersive X-ray spectroscopy analysis. Morphology characterization revealed the porous structure with micron-size pores. Synthetic mechanism was studied by thermogravimetry and differential scanning calorimetry. Magnetic properties of the alloys were investigated at room temperature. The highest saturation magnetization was found to be about 231 emu/g, which is much larger than that of the corresponding alloys synthesized through other chemical methods.

Graphical Abstract

SEM images and magnetic hysteresis loop of Fe0.7Co0.3 alloy synthesized by sol–gel autocombustion method.

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Acknowledgments

This work was supported by National Natural Science Foundation of China under Grant No. 61176087.

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Authors and Affiliations

  1. School of Physics, National Laboratory of Solid State Microstructures, and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210093, China

    Xinwei Zhang, Zhenghe Hua & Shaoguang Yang

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  1. Xinwei Zhang
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  2. Zhenghe Hua
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  3. Shaoguang Yang
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Correspondence to Shaoguang Yang.

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Zhang, X., Hua, Z. & Yang, S. Sol–gel autocombustion synthesis and characterization of Fe1−x Co x alloys with large saturation magnetization. J Sol-Gel Sci Technol 78, 171–175 (2016). https://doi.org/10.1007/s10971-015-3909-8

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  • DOI: https://doi.org/10.1007/s10971-015-3909-8

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