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A Novel Carbothermal Synthesis Route for Carbon Nanotube Supported Fe2P Nanoparticles

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Abstract

A novel carbothermal route for the synthesis of supported Fe2P nanoparticles was developed. In contrast to the conventional H2-temperature-programmed reduction (TPR) method, this route uses carbon nanotubes (CNTs) as support and reducing agent. Additionally, Fe2P nanoparticles can be obtained using Fe2O3 and ammonium hydrogen phosphate as precursors by this route. The Fe:P precursor ratio has a significant effect on the phase composition of iron phosphide product, and near pure Fe2P can be obtained on CNTs with a phosphorus content a little beyond the stoichiometric ratio. It was observed that the Fe2P product had a smaller particle size than that obtained from the commonly used iron phosphate precursor. It was found that the size of Fe2P nanoparticles obtained via this carbothermal route appeared to depend on the size of Fe-containing precursor, which indicated that it was possible to synthesize Fe2P nanoparticles with a wide size range by systematically adjusting the particle size of Fe2O3 precursor on CNTs.

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Acknowledgments

The work was supported by the National Natural Science Foundation of China (No. 21006032) and by the China Postdoctoral Science Foundation (No. 20100470916).

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Authors and Affiliations

  1. Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangdong, 510640, China

    Zhiwei Yao, Hang Hai, Xiaohong Zhang & Changfeng Yan

  2. School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510640, China

    Zhiwei Yao, Zhuangchai Lai, Xiaohong Zhang & Feng Peng

Authors
  1. Zhiwei Yao
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  2. Hang Hai
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  3. Zhuangchai Lai
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  4. Xiaohong Zhang
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  5. Feng Peng
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  6. Changfeng Yan
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Correspondence to Zhiwei Yao.

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Yao, Z., Hai, H., Lai, Z. et al. A Novel Carbothermal Synthesis Route for Carbon Nanotube Supported Fe2P Nanoparticles. Top Catal 55, 1040–1045 (2012). https://doi.org/10.1007/s11244-012-9885-0

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  • DOI: https://doi.org/10.1007/s11244-012-9885-0

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