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Doklady Chemistry

, Volume 484, Issue 2, pp 64–67 | Cite as

Hierarchically Structured, Highly Porous Nickel Synthesized in Sintering–Evaporation Process from a Metal Nanopowder and a Space Holder

  • A. G. Gnedovets
  • V. A. Zelenskii
  • A. B. Ankudinov
  • M. I. AlymovEmail author
CHEMICAL TECHNOLOGY
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Abstract

Permeable (~70% porosity) nickel with a pronounced hierarchical structure was synthesized by powder metallurgy methods in sintering–evaporation process from a nickel nanopowder and an ammonium bicarbonate micropowder as a space holder. The obtained porous nickel contained pores of three spatial scales: macropores (30–50 μm in size), their connecting windows (5–10 μm), and interparticle micropores (less than 1 μm) in the walls of macropores. The produced material is characterized by a network of interpenetrating macropores and by a developed surface of their walls consisting of several layers of sintered nickel nanoparticles.

Notes

ACKNOWLEDGMENTS

This work was supported by the Russian Science Foundation (project no. 17–03–00337-a) and the Presidium of the Russian Academy of Sciences (program no. 34P). The electron microscopy studies were supported by State Assignment no. 007–00129–18–00.

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Copyright information

© Pleiades Publishing, Ltd. 2019

Authors and Affiliations

  • A. G. Gnedovets
    • 1
  • V. A. Zelenskii
    • 1
  • A. B. Ankudinov
    • 1
  • M. I. Alymov
    • 1
    Email author
  1. 1.Baikov Institute of Metallurgy and Materials Science, Russian Academy of SciencesMoscowRussia

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