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Direct synthesis of mesoporous Fe3O4 through citric acid-assisted solid thermal decomposition

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Abstract

A simple and inexpensive approach to synthesizing mesoporous Fe3O4 is developed by using citric acid-assisted solid thermal decomposition of ferric nitrate. The structure and magnetic property of mesoporous Fe3O4 were characterized by XRD, FT–IR, N2 adsorption–desorption isotherms, TEM, and vibrating sample magnetometer. It was shown that the decomposition of citric acid results in the formation of the mesoporous structure and narrow pore-size distribution. The reducing atmosphere which created by the decomposition of the ferric nitrate–citric acid complex caused the partial reduction of Fe(III) to Fe(II) and in turn the formation of Fe3O4. Moreover, the strength of the coordination between carboxyl group and Fe3+ also affected the phase composition of the iron oxides.

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Acknowledgements

This work was supported financially by the New Century Excellent Talents in University (NCET-05-415), National Natural Science Foundation of China (20673037), the Commission of Science and Technology of Shanghai Municipality (08JC1407900), China.

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Authors and Affiliations

  1. Lab for Advanced Materials, Research Institute of Industrial Catalysis, East China University of Science and Technology, Shanghai, 200237, People’s Republic of China

    Xiaohui Liu, Yong Guo, Yangang Wang, Jiawen Ren, Yanqin Wang, Yanglong Guo, Yun Guo, Guanzhong Lu, Yunsong Wang & Zhigang Zhang

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  1. Xiaohui Liu
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  2. Yong Guo
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  3. Yangang Wang
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  4. Jiawen Ren
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  7. Yun Guo
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  8. Guanzhong Lu
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Correspondence to Yanqin Wang or Guanzhong Lu.

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Liu, X., Guo, Y., Wang, Y. et al. Direct synthesis of mesoporous Fe3O4 through citric acid-assisted solid thermal decomposition. J Mater Sci 45, 906–910 (2010). https://doi.org/10.1007/s10853-009-4019-1

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  • DOI: https://doi.org/10.1007/s10853-009-4019-1

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