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Novel Pathway to Prepare Mo Nanopowder via Hydrogen Reduction of MoO2 Containing Mo Nanoseeds Produced by Reducing MoO3 with Carbon Black

  • Design, Development, and Manufacturing of Refractory Metals & Materials
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Abstract

A novel pathway for the preparation of nanoscale Mo powder has been developed. Ultrafine MoO2 powder containing different amounts of Mo nanoscale nuclei was synthesized via temperature-programed reduction of commercial MoO3 with carbon black at C/MoO3 molar ratio of 0.5–1.5 and final temperature of 920°C, followed by hydrogen reduction at 750–900°C. In the absence of Mo nanoseeds, the Mo powder retained its original morphology and particle size (several hundred nanometers). However, the presence of Mo nanoseeds resulted in successful preparation of Mo nanopowder with residual carbon content as low as 0.016%. This method could potentially be extended to large-scale industrial production of nanoscale Mo powder.

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Acknowledgements

The authors gratefully acknowledge financial support from the National Natural Science Foundation of China (Grant Nos. 51734002 and 51725401).

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  1. State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing, 100083, China

    Guo-Dong Sun & Guo-Hua Zhang

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  1. Guo-Dong Sun
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  2. Guo-Hua Zhang
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Correspondence to Guo-Hua Zhang.

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Sun, GD., Zhang, GH. Novel Pathway to Prepare Mo Nanopowder via Hydrogen Reduction of MoO2 Containing Mo Nanoseeds Produced by Reducing MoO3 with Carbon Black. JOM 72, 347–353 (2020). https://doi.org/10.1007/s11837-019-03445-4

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  • DOI: https://doi.org/10.1007/s11837-019-03445-4

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