Mono-, Bi-, and Trimetallic Catalysts for the Synthesis of Multiwalled Carbon Nanotubes Based on Iron Subgroup Metals

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6 Citations (Scopus)

Abstract

Formation features of mono- (Fe, Co, Ni), bi- (Fe-Co, Fe-Ni, Co-Ni), and trimetallic (Fe-Co-Ni) catalysts for the synthesis of multiwalled carbon nanotubes (MWCNTs) prepared by the method of polymerized complex precursors are revealed. It is shown that initial bimetallic and trimetallic catalysts occur in a wide range of phases with spinel structure consisting of different mixed metal oxides (Me(II)Me(III)2O4). The influence of the active component composition and the catalyst activation conditions on their activity in the reaction of MWCNT synthesis is determined. MWCNTs with specific structural characteristics, a narrow diameter distribution and a relatively low degree of defectiveness, can be obtained by varying the composition of the catalyst active component.

Original languageEnglish
Pages (from-to)640-651
Number of pages12
JournalJournal of Structural Chemistry
Volume61
Issue number4
DOIs
Publication statusPublished - 1 Apr 2020

Keywords

  • defectiveness
  • Fe, Co, Ni, catalytic chemical vapor deposition
  • mono-, bi-, and trimetallic catalysts
  • multi-walled carbon nanotubes

OECD FOS+WOS

  • 1.04 CHEMICAL SCIENCES

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