Preparation procedure to obtain iron nanopowder under non-isothermal conditions

Authors

  • Tien Hiep Nguyen National University of Science and Technology «MISiS», 4 Leninsky Avenue, Moscow 119049, Russia; Le Quy Don Technical University, 236 Hoang Quoc Viet Street, Hanoi 100000, Vietnam https://orcid.org/0000-0002-3023-556X
  • Van Minh Nguyen Institute of Technology, 3 Cau Vong Street, Hanoi 100000, Vietnam
  • Manh Hung Nguyen Le Quy Don Technical University, 236 Hoang Quoc Viet Street, Hanoi 100000, Vietnam
  • Vitaly N. Danchuk National University of Science and Technology «MISiS», 4 Leninsky Avenue, Moscow 119049, Russia

Keywords:

kinetics, iron nanopowder, non-isothermal condition, differential-difference method, activation energy

Abstract

The kinetics for the procedure of preparing iron nanopowder from α-FeOOH by hydrogen reduction under non-isothermal conditions were studied. The reduction of α-FeOOH nanopowder was shown to occur within the temperature range from 180 to 550 °С, with a maximum specific rate value attained at 500 °С. The activation energy for the reduction process α-FeOOH nanopowder was measured to be ~43 kJ/mol, evidencing a mixed reaction mode. Performing the reduction of α-FeOOH at 500 °С accelerated the process while ensuring the required properties of the product obtained. The Fe nanoparticles thus prepared were of rounded shape, the size ranging from 70 to 100 nm.

Author Biographies

  • Tien Hiep Nguyen, National University of Science and Technology «MISiS», 4 Leninsky Avenue, Moscow 119049, Russia; Le Quy Don Technical University, 236 Hoang Quoc Viet Street, Hanoi 100000, Vietnam

    lecturer at the department of materials science and engineering, faculty of mechanical engineering, Le Quy Don Technical University

  • Van Minh Nguyen, Institute of Technology, 3 Cau Vong Street, Hanoi 100000, Vietnam

    PhD (engineering); researcher at the department of materials technology

  • Manh Hung Nguyen, Le Quy Don Technical University, 236 Hoang Quoc Viet Street, Hanoi 100000, Vietnam

    lecturer at the department of materials science and engineering, faculty of mechanical engineering

  • Vitaly N. Danchuk, National University of Science and Technology «MISiS», 4 Leninsky Avenue, Moscow 119049, Russia

    master’s degree student at the department of functional nanosystems and high temperature materials, College of New Materials and Nanotechnologies

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Published

2021-04-12

Issue

No. 1 (2021): Journal of the Belarusian State University. Chemistry

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Original Articles

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How to Cite

[1]
Nguyen, T.H. et al. 2021. Preparation procedure to obtain iron nanopowder under non-isothermal conditions. Journal of the Belarusian State University. Chemistry. 1 (Apr. 2021), 28–35. DOI:https://doi.org/10.33581/2520-257X-2021-1-28-35.